fm3501_b

Preface, Contents

User Information

Product Overview1

Installing and Removing theFM 350-1 2

Wiring the FM 350-1 3Assigning Parameters to theFM 350-1 4

Programming the FM 350-1 5Programming in M7 with theCounter Function Library 6

Starting Up the FM 350-1 7

Reference InformationOperating Modes, Settings,Parameters and Commands

8Encoder Signals and Their Evaluation

9

DB Assignments10

M7 Reference Counter FunctionLibrary

11

Faults and Diagnostics12

Appendices

Technical SpecificationsA

Spare PartsB

ReferencesC

Glossary, Index

Edition 01/2003A5E00073040-02

FM 350-1 Function Module

Manual

This manual is part of the documentationpackage with the order number:

6ES7350-1AH00-8BG0

SIMATIC

Index-2FM 350-1 Function Module

07/2000

!Dangerindicates that death, severe personal injury or substantial property damage will result if proper precau-tions are not taken.

!Warningindicates that death, severe personal injury or substantial property damage can result if proper precau-tions are not taken.

!Cautionindicates that minor personal injury or property damage can result if proper precautions are not taken.

Notedraws your attention to particularly important information on the product, handling the product, or to aparticular part of the documentation.

Qualified PersonnelOnly qualified personnel should be allowed to install and work on this equipment. Qualified personsare defined as persons who are authorized to commission, to ground, and to tag circuits, equipment,and systems in accordance with established safety practices and standards.

Correct UsageNote the following:

!WarningThis device and its components may only be used for the applications described in the catalog or thetechnical descriptions, and only in connection with devices or components from other manufacturerswhich have been approved or recommended by Siemens.

This product can only function correctly and safely if it is transported, stored, set up, and installed cor-rectly, and operated and maintained as recommended.

TrademarksSIMATIC, SIMATIC HMI and SIMATIC NET are registered trademarks of SIEMENS AG.Some of other designations used in these documents are also registered trademarks; the owners rightsmay be violated if they are used by third parties for their own purposes.

Safety GuidelinesThis manual contains notices which you should observe to ensure your own personal safety, aswell as to protect the product and connected equipment. These notices are highlighted in themanual by a warning triangle and are marked as follows according to the level of danger:

We have checked the contents of this manual for agreement withthe hardware and software described. Since deviations cannot beprecluded entirely, we cannot guarantee full agreement. However,the data in this manual are reviewed regularly and any necessarycorrections included in subsequent editions. Suggestions for im-provement are welcomed.

Disclaimer of LiabilityCopyright Siemens AG 2000-2002 All rights reservedThe reproduction, transmission or use of this document or itscontents is not permitted without express written authority.Offenders will be liable for damages. All rights, including rightscreated by patent grant or registration of a utility model or design,are reserved.Siemens AGBereich Automation and DrivesGeschaeftsgebiet Industrial Automation SystemsPostfach 4848, D- 90327 Nuernberg

Siemens AG 2000-2002Technical data subject to change.

Siemens Aktiengesellschaft A5E00073040-02

iiiFM 350-1 Function ModuleA5E00073040-02

Preface

Purpose of the ManualThis manual gives you a complete overview of FM 350-1 function module. It helpsyou during installation and commissioning. The procedures involved in installation,wiring, parameter assignment and programming are described.This manual is intended for the programmers of STEP 7 programs and for thoseresponsible for configuring, commissioning, and servicing automation systems.

Required Basic KnowledgeYou require a general knowledge in the field of automation engineering to be ableto understand this manual.

In addition, you should know how to use computers or devices with similarfunctions (e.g programming devices) under Windows 95/98/2000 or NT operatingsystems.

Where is this Manual valid?The present manual contains the description of function module FM 350-1applicable at the time the manual was published. We reserve the right to describechanges of FM 350-1 functionality in a Product Information Leaflet.

The Contents of theMan al

... Apply to the FM 350-1Manual.... MLFB Release

Without latch without measuring operatingmodeswithout isochrone mode

6ES7 350-1AH00-0AE06ES7 350-1AH01-0AE0 43

21 =

without measuring operatingmodeswithout isochrone mode

6ES7 350-1AH02-0AE0

4321 =

6ES7 350-1AH03-0AE0

4321 =

Preface

ivFM 350-1 Function Module

A5E00073040-02

Changes compared to the previous versionFM 350-1 features the following enhancements: Frequency measurement Rotation speed measurement Period measurement Isochrone mode in a modular slave (ET 200M) System modification during operation using CiR /3/ More latch edges Hysteresis for counting modes Firmware update

Certification Underwriters Laboratories, Inc.: UL 508 registered

(Industrial Control Equipment) Canadian Standards Association: CSA C22.2 number 142,

(Process Control Equipment) Factory Mutual Research: Approval Standard Class Number 3611.

CE LabelingSIMATIC S7-300 products fulfil the requirements and protection guidelines of thefollowing EU directives: EC Directive 73/23/EEC Low-voltage directive EC Directive 89/336/EWG EMC directive

CTick MarkSIMATIC products S7-300 are compliant with requirements of the AS/NZS 2064 (Australian) standard.

StandardsSIMATIC S7-300 products fulfil the requirements and criteria of IEC 61131-2.

Place of this Documentation in the Information EnvironmentThis manual is acomponent of the documentation package 6ES7350-1AH00-8BG0.

Preface

vFM 350-1 Function ModuleA5E00073040-02

Recycling and DisposalFM 350-1 is recycleable due to its non-toxic materials. Please contact a companycertified in the disposal of electronic scrap for environmentally safe recycling anddisposal of your old device.

Further SupportIf you have any technical questions, please get in touch with your Siemensrepresentative or agent responsible.http://www.siemens.com/automation/partner

Training CentersSiemens offers a number of training courses to familiarize you with the SIMATIC S7automation system. Please contact your regional training center or our centraltraining center in D 90327 Nuremberg, Germany for details:Telephone: +49 (911) 895-3200.Internet: http://www.sitrain.com

Preface

viFM 350-1 Function Module

A5E00073040-02

A&D Technical SupportWorldwide, available 24 hours a day:

Johnson City

Nuernberg

Beijing

Technical Support

Worldwide (Nuernberg)Technical Support

24 hours a day, 365 days a yearPhone: +49 (0) 180 5050-222Fax: +49 (0) 180 5050-223E-Mail: adsupport@

siemens.comGMT: +1:00Europe / Africa (Nuernberg)Authorization

Local time: Mon.-Fri. 7:00 to 17:00Phone: +49 (0) 180 5050222Fax: +49 (0) 180 5050-223E-Mail: adautorisierung@

siemens.comGMT: +1:00

United States (Johnson City)Technical Support andAuthorizationLocal time: Mon.-Fri. 8:00 to 17:00Phone: +1 (0) 423 262 2522Fax: +1 (0) 423 262 2289E-Mail: simatic.hotline@

sea.siemens.comGMT: 5:00

Asia / Australia (Beijing)Technical Support andAuthorizationLocal time: Mon.-Fri. 8:30 to 17:30Phone: +86 10 64 75 75 75Fax: +86 10 64 74 74 74E-Mail: adsupport.asia@

siemens.comGMT: +8:00

The languages of the SIMATIC Hotlines and the authorization hotline are generally German and English.

Preface

viiFM 350-1 Function ModuleA5E00073040-02

Service & Support on the InternetIn addition to our documentation, we offer our Know-how online on the internet at:

http://www.siemens.com/automation/service&support

where you will find the following: The newsletter, which constantly provides you with up-to-date information on

your products. The right documents via our Search function in Service & Support. A forum, where users and experts from all over the world exchange their

experiences. Your local representative for Automation & Drives via our representatives

database. Information on field service, repairs, spare parts and more under Services.

Preface

viiiFM 350-1 Function Module

A5E00073040-02

ixFM 350-1 Function ModuleA5E00073040-02

Contents

1 Product Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 What Can the FM 350-1 Do? 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Application Areas of the FM 350-1 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 FM 350-1 Hardware 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 FM 350-1 Software 1-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Installing and Removing the FM 350-1 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Preparing the Installation 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Installing and Removing the FM 350-1 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Wiring the FM 350-1 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 Terminal Assignments of the Front Connector 3-2. . . . . . . . . . . . . . . . . . . . . . . . 3.2 Wiring the Front Connector 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 Module Status After Switching On 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Assigning Parameters to the FM 350-1 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1 Installing and Calling Parameter Assignment Screen Forms 4-2. . . . . . . . . . .

5 Programming the FM 350-1 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1 The CNT_CTL1 Function (FC 2) 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 The CNT_CTL2 Function (FC 3) 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.3 The DIAG_INF Function (FC 1) 5-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4 Application Example 5-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 Technical Data for the Blocks 5-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.6 Programming the FM 350-1 without FCs 5-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.6.1 Control and Check-back Interface for the Count Modes 5-16. . . . . . . . . . . . . . . 5.6.2 Control and Check-back Interface for the Measure Modes 5-24. . . . . . . . . . . . . 5.6.3 Using the Interface with the Complete Acknowledgement Principle 5-31. . . . . 5.6.4 Restart Coordination 5-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.7 Reaction to CPU STOP and CPU STOP-RUN 5-36. . . . . . . . . . . . . . . . . . . . . . .

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6 Programming in M7 with the Counter Function Library 6-1. . . . . . . . . . . . . . . . . . . . . 6.1 Overview 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Basic Program Structure 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3 Initializing and Parameterizing the Counter Channel 6-5. . . . . . . . . . . . . . . . . . 6.4 Transferring the Load Value and Comparison Values 6-8. . . . . . . . . . . . . . . . . 6.5 Control of the Digital Inputs and Outputs 6-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.6 Starting and Stopping the Counter Channel 6-10. . . . . . . . . . . . . . . . . . . . . . . . . 6.7 Reading the Counter Value and the Load Value,

Scanning and Resetting the Status 6-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.8 Processing Interrupts 6-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.9 Processing Error Messages 6-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Starting Up the FM 350-1 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.1 Mechanical Installation Checklist 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2 Parameter Assignment Checklist 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Operating Modes, Parameters and Commands 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.1 Basic Information on Calling Operating Modes, Settings and Commands 8-28.2 Isochrone Mode 8-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3 Count Modes 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.1 What are the Count Modes? 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.2 Definitions 8-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.3 Continuous Counting 8-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.4 Single Counting 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.5 Periodic Counting 8-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.6 Count Range 8-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.7 Command: Open and Close Gate 8-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.8 Behavior of the Digital Outputs 8-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.9 Command: Set Counter 8-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.10 Command: Latch/Retrigger 8-44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.11 Command: Latch 8-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3.12 Command: Measure the Times Between two Edges 8-48. . . . . . . . . . . . . . . . . . 8.4 Measure Modes 8-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.1 What are the Measure Modes? 8-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.2 Definitions 8-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.3 Frequency Measurement 8-55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.4 RPM Measurement 8-57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.5 Continuous Periodic Measurement 8-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.6 Command: Open and Close Gate 8-62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4.7 Behavior of the Digital Outputs 8-66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5 Initiating a Process Interrupt 8-69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

xiFM 350-1 Function ModuleA5E00073040-02

9 Encoder Signals and Their Evaluation 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.1 Overview 9-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2 5 V Differential Signals 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.3 24 V Signals 9-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.4 Pulse Evaluation 9-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 DB Assignments 10-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 M7 Reference Counter Function Library 11-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.1 M7CntDisableOut 11-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 M7CntDisableSet 11-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.3 M7CntEnableOut 11-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.4 M7CntEnableSet 11-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.5 M7CntInit 11-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.6 M7CntLoadAndStart 11-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.7 M7CntLoadComp 11-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.8 M7CntLoadDirect 11-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.9 M7CntLoadPrep 11-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.10 M7CntPar 11-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.11 M7CntRead 11-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.12 M7CntReadDiag 11-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.13 M7CntReadLoadValue 11-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.14 M7CntReadParError 11-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.15 M7CntReadStatus 11-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.16 M7CntResetStatus 11-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.17 M7CntStart 11-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.18 M7CntStop 11-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.19 M7CntStopAndRead 11-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.20 M7CNT_DIAGINFO 11-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.21 M7CNT_PARAM 11-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.22 M7CNT_STATUS 11-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.23 Error Codes 11-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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xiiFM 350-1 Function Module

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12 Faults and Diagnostics 12-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.1 Fault Indication via the Group Error LED 12-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.2 Initiation of Diagnostics Interrupts 12-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.3 Data Errors 12-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.4 Operator Errors 12-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A Technical Specifications A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B Spare Parts B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C References C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Glossary Glossary-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index Index-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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xiiiFM 350-1 Function ModuleA5E00073040-02

Figures1-1 Example for Using an FM 350-1 in the S7-300 1-6. . . . . . . . . . . . . . . . . . . . . . . 1-2 FM 350-1 Module View 1-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 SIMATIC S7-300 configuration with an FM 350-1 1-10. . . . . . . . . . . . . . . . . . . . . 2-1 Installing the Coding Connector 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Front Connector of the FM 350-1 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Details Regarding the Connection of an Incremental 5V Encoder 3-7. . . . . . . 3-3 Details Regarding the Connection of an Incremental 24V Encoder 3-8. . . . . . 3-4 FM 350-1 with Shielded Cables and the Shield Support 3-9. . . . . . . . . . . . . . . 5-1 Exchange of Data between the User Program and FM 350-1 with FCs 5-2. . 5-2 Complete acknowledgement principle 5-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Transfer of values 5-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Resetting the status bits 5-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Restart sequence 5-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 Continuous counting with gate control 8-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 Single counting without main counting direction; Cancel gate function 8-10. . . 8-3 Single counting without main counting direction; Cancel gate function 8-11. . . 8-4 Single counting with main counting direction down;

Cancel gate function 8-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5 Single Counting with Load Value and gate control 8-13. . . . . . . . . . . . . . . . . . . . 8-6 Periodic counting without main counting direction 8-15. . . . . . . . . . . . . . . . . . . . 8-7 Periodic counting with main counting direction up 8-16. . . . . . . . . . . . . . . . . . . . 8-8 Periodic counting with main counting direction down 8-17. . . . . . . . . . . . . . . . . . 8-9 Periodic Counting with Load Value and gate control 8-18. . . . . . . . . . . . . . . . . . 8-10 Level-Controlled Opening and Closing of the Hardware Gate 8-21. . . . . . . . . . 8-11 Edge-Controlled Opening and Closing of the Hardware Gate 8-22. . . . . . . . . . 8-12 Opening and Closing of the Software Gate 8-23. . . . . . . . . . . . . . . . . . . . . . . . . . 8-13 Continuous counting, down, Cancel gate function 8-24. . . . . . . . . . . . . . . . . . . . 8-14 Continuous counting, down, Interrupt gate function 8-24. . . . . . . . . . . . . . . . . . . 8-15 Starting and stopping the counting operation

with the SW gate (SW_GATE) 8-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16 Starting and stopping the counting process

with the HW gate (HW_GATE) 8-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17 At the start of the counting process, V2 > V1 8-31. . . . . . . . . . . . . . . . . . . . . . . . . 8-18 At the start of the counting process, V1 > V2 8-32. . . . . . . . . . . . . . . . . . . . . . . . . 8-19 Reactions of an output for a pulse duration 0 ms 8-33. . . . . . . . . . . . . . . . . . . . . 8-20 Example showing the effect of hysteresis 8-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21 Example in response to a change of direction at the comparison value 8-36. . 8-22 Example showing the effect of hysteresis 8-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23 Single Setting with DI Set 8-40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24 Multiple Setting with DI Set 8-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25 Single Setting of the Counter with the Zero Mark 8-42. . . . . . . . . . . . . . . . . . . . . 8-26 Multiple Setting of the Counter with the Zero Mark 8-43. . . . . . . . . . . . . . . . . . . . 8-27 Latch/Retrigger when load value = 0 and a positive edge at Start DI 8-45. . . . 8-28 Latch when load value = 0 and a positive edge at Start DI 8-47. . . . . . . . . . . . . 8-29 Measuring principle 8-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-30 Principle of continuous measurement

(example of a frequency measurement) 8-52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31 Limit value monitoring in Measure modes 8-53. . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32 Frequency measurement with gate function 8-55. . . . . . . . . . . . . . . . . . . . . . . . . 8-33 RPM measurement with gate function 8-57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-34 Periodic measurement of the gate function 8-59. . . . . . . . . . . . . . . . . . . . . . . . . .

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xivFM 350-1 Function Module

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8-35 Level-controlled opening and closing of the HW gate 8-62. . . . . . . . . . . . . . . . . 8-36 Edge-controlled opening and closing of the HW gate 8-63. . . . . . . . . . . . . . . . . 8-37 Level-controlled opening and closing of the SW gate 8-64. . . . . . . . . . . . . . . . . 8-38 Starting and stopping the counting process

with the SW gate (SW_GATE) 8-65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-39 Starting and stopping the counting process

with the HW gate (HW_GATE) 8-65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 Signals of the Incremental 5 V encoder 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 Signals of a 24 V Pulse Encoder with Direction Level 9-5. . . . . . . . . . . . . . . . . 9-3 Single Evaluation 9-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4 Double Evaluation 9-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5 Quadruple Evaluation 9-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

xvFM 350-1 Function ModuleA5E00073040-02

Tables1-1 Input Filters 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Front Connector Assignments 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Input Filters for 24 V Encoder Signals 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Input Filters for Digital Inputs 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Parameters for transferring values in the DB (Count modes) 5-8. . . . . . . . . . 5-2 Parameters for transferring values in the DB (Measure modes) 5-9. . . . . . . . 5-3 DIAG_INF function parameters 5-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Symbols in Example 5-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Control interface for Count modes (outputs) 5-17. . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Explanation of the control bits for the Count modes 5-19. . . . . . . . . . . . . . . . . . 5-7 Check-back interface for Count modes (inputs) 5-20. . . . . . . . . . . . . . . . . . . . . . 5-8 Explanation of the check-back bits for the Count modes 5-22. . . . . . . . . . . . . . 5-9 Control interface for Measure modes (outputs) 5-24. . . . . . . . . . . . . . . . . . . . . . 5-10 Explanation of the control bits for the Measure modes 5-26. . . . . . . . . . . . . . . . 5-11 Check-back interface for Measure modes (inputs) 5-27. . . . . . . . . . . . . . . . . . . 5-12 Explanation of the check-back bits for the Measure modes 5-29. . . . . . . . . . . . 5-13 Data record DS 2 5-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 The FM 350-1 Count modes 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 Starting count 8-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3 The FM 350-1 commands 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4 Output DO0 8-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5 Output DO1 8-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6 Marginal conditions for the behavior of the digital outputs 8-34. . . . . . . . . . . . . 8-7 Effect of the hysteresis 8-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8 The FM 350-1 Measure modes 8-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9 Starting count 8-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10 The FM 350-1 commands 8-54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11 Calculating the update time 8-55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12 Calculating the update time 8-57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13 Calculating the update time 8-59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14 Behavior of digital output DO0 8-67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15 Output DO0 8-68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16 Output DO1 8-68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17 Assignment of the bits of the variable OB40_POINT_ADDR 8-70. . . . . . . . . . . 9-1 Encoders for the FM 350-1 9-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 Count Direction in Dependence on the Input Parameterization 9-6. . . . . . . . . 9-3 Input Filters 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1 DB Assignments 10-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1 Detailed Specifications of the Parameterization Data 11-34. . . . . . . . . . . . . . . . . 11-2 Operator Errors 11-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3 Counter Function Errors 11-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4 Parameterization Errors 11-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1 Assignments of Diagnostics Data Set DS0 12-4. . . . . . . . . . . . . . . . . . . . . . . . . . 12-2 Assignments of the Bits of Bytes 4 to 11 of Diagnostics Data Set 12-5. . . . . . . 12-3 Data Error Numbers and their Meanings 12-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-4 Numbers of the Operator Errors and their Meaning 12-9. . . . . . . . . . . . . . . . . . . B-1 Accessories and Spare Parts B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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1-1FM 350-1 Function ModuleA5E00073040-02

Product Overview

Chapter OverviewThis chapter gives you an overview of the FM 350-1 function module. You will learn what the FM 350-1 can do. You will become familiar with the application areas of the FM 350-1 through

examples. You will learn how the FM 350-1 is linked into the S7-300/M7-300

programmable controller and you will become familiar with the most importantcomponents of the FM 350-1.

Section Description Page1.1 What Can the FM 350-1 Do? 1-21.2 Application Areas of the FM 350-1 1-51.3 FM 350-1 Hardware 1-7

1.4 FM 350-1 Software 1-10

1

Product Overview

1-2FM 350-1 Function Module

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1.1 What Can the FM 350-1 Do?

What Can the FM 350-1 Do?The FM 350-1 function module is a high-speed counter module for use in theS7-300/M7-300 programmable controller. There is one counter on the module thatcan operate in the following ranges: 0 to 4,294,967,295 (0 to 232 1) or 2,147,483,648 to + 2,147,483,647 (231 to 231 1).The maximum input frequency of the counter signals is up to 500 kHz dependingon the encoder signal.You can use the FM 350-1 for the following tasks: Continuous counting Single counting Periodic counting Frequency measurement Rotational speed measurement Period measurementYou can start and stop each mode either via the user program (software gate) orvia external signals (hardware gate).

Comparison ValuesYou can store two comparison values on the module assigned to the two relevantoutputs on the module. If the counter status reaches one of the two comparisonvalues, the relevant output can be set to initiate control actions direct in theprocess.

Load ValueYou can specify a value on the FM 350-1 from which it should begin counting. Thisvalue is called the load value. Any value within the count limits can be set for theload value.

Process InterruptsThe FM 350-1 can trigger a process interrupt in the CPU if the comparison valuesare reached, or in the case of overflow, underflow and/or in the case of zero passof a counter.

Product Overview


Diagnostics InterruptsThe FM 350-1 can trigger a diagnostics interrupt if any of the following occur: Fault in external auxiliary voltage Fault in 5.2 VDC encoder supply Module not parameterized or errors in parameterization Watchdog triggered RAM defective Process interrupt lost Fault in signal A, B or N

Pulse Duration

You can specify a pulse duration for the digital outputs of the FM 350-1. The pulseduration specifies how long the relevant digital output is to be set. You can specifya value between 0 and 500 ms for the pulse duration. This value applies for bothoutputs. You can adapt the FM 350-1 to existing actuators by specifying a pulseduration.

Which Signals can the FM 350-1 Register?The FM 350-1 can register the signals from the following sources: Incremental 5 V encoders Incremental 24 V encoders 24 V pulse encoders with direction level 24 V initiators without direction level for example, light barrier or BERO Internal 1 MHz time base

Input FilterFor the purpose of suppressing interference, you can parameterize input filters (RCelements) with a uniform filter time for the 24 V inputs A*, B* and N* and for thedigital inputs. The following two input filters are available:

Table 1-1 Input Filters

Features Input Filter 1(Default)

Input Filter 2

Typical input delay 1 s 15 sMaximum counting frequency 200 kHz 20 kHzMinimum pulse width of the count signals 2.5 s 25 s

Central OperationYou can apply the FM 350-1 in S7-300 and M7-300 systems centrally.

Product Overview


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Distributed OperationYou can use the FM 350-1 via IM 153-1, IM 153-2 and IM 153-3 distributed inET 200M. Examples of application are:

ET 200M with single backplane bus ET 200M with active backplane bus ET 200M as moduled clocked mode slave ET 200M in one-sided mode in an H system ET 200M in interconnected mode in an H system

Firmware UpdateFor upgrades and bugfixes it is possible with the help of STEP 7 HW Config (as ofV 5.2) to download firmware updates to the operating system memory of FM 350-1.

NoticeStarting the firmware updates deletes the old FM 350-1 firmware.If the firmware update is interupted or terminated by any means, the FM 350-1 willno longer be available.Please start the firmware update again and wait until it is successfully completed.

CiRThe FM 350-1 is CiR-compatible, i. e. via configuration modification at RUN of theCPU you can change the FM 350-1parameters. Parameter changes resets theFM 350-1 and is essentially a reconfiguration.FM 350-1 allows parameter changes during operation of the user program (seechapter 4).

Isochrone ModeDepending on your STEP 7 V 5.2 configuration, you can work with the FM 350-1either in non-isochrone or isochrone mode.

Product Overview


1.2 Application Areas of the FM 350-1

Where Can You Use the FM 350-1?The main application area of the FM 350-1 is where signals with high frequenciesare counted and high-speed responses have to be triggered to predefined counterstatuses.

Examples include:

Packaging plants Sorting plants Dosing or proportioning plants.

Product Overview


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Example for the Use of an FM 350-1In this example, a carton must be filled with a specific number of parts. Onecounter of the FM 350-1 counts the parts and controls the motor for transportingthe parts and the motor for transporting the carton.If the carton is in the correct position, conveyor belt A is stopped via the lightbarrier, the count is started and the motor for conveyor belt B is switched on. Whenthe carton contains the programmed number of parts, the FM 350-1 stops themotor for conveyor belt B and switches on the motor for conveyor belt A forremoval of the carton. The count can start again when the next carton reaches thelight barrier.

Gate

MotorMotor

Lightbarrier

FM 350-1

Belt A

Belt B

Figure 1-1 Example for Using an FM 350-1 in the S7-300

Product Overview


1.3 FM 350-1 Hardware

View of ModuleFigure 1-2 shows the FM 350-1 module with a front connector and the expansionbus with the front panel closed.

Labeling strips

Expansion busSIMATIC interface

Version

Coding connector

Diagnosticsand status LEDs

Order number

Front connector with front connectorcoding

Type plate

Figure 1-2 FM 350-1 Module View

Front ConnectorThe FM 350-1 offers the following connection possibilities via the front connector: 5 V or 24 V encoder signals Encoder supply Digital input signals for starting, stopping and setting the counter Digital output signals Q0 and Q1 Auxiliary voltage 1L+ for generating the encoder supply voltages Load voltage 2L+ for supplying the digital outputsThe front connector must be ordered separately (see Appendix B).

Product Overview


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Front Connector CodingWhen you press the front connector from the wiring position to the operatingposition, the front connector coding engages. Thereafter, this front connector canonly be attached to an FM 350-1 module.

Coding ConnectorThe coding connector is used to set the FM 350-1 to the encoder signals used. Thefollowing settings are possible:

Coding Connector at Setting... ...Corresponds to the Following Encoder SignalsA 5 V differential signals (state as supplied)D 24 V signals

The coding connector is located on the left side of the FM 350-1.

Labeling StripsEnclosed with the module is a labeling strip on which you can write your relevantsignal names.The pin assignments are printed on the inside of the front panel.

Order Number and VersionThe order number and the version of the FM 350-1 are given at the bottom of thefront panel.

Firmware VersionThe firmware version indicates the version at the time of delivery. It can be updatedwith a firmware update.

Expansion BusCommunications within one tier of the S7-300/M7-300 takes place over theexpansion bus. The expansion bus is supplied with the FM 350-1.

Product Overview


Status and Diagnostics LEDsThe FM 350-1 has eight LEDs that can be used both for diagnostics and forindicating the status of the FM 350-1 and its digital inputs and outputs.The following table lists the LEDs with their labeling, color and function.

Label Color FunctionSF Red Group errorCR Green Counter running; status of the least significant bit of the counterDIR Green Direction of count; LED lights up, if the counter is counting downI0 Green Status of DI StartI1 Green Status of DI StopI2 Green Status of DI SetQ0 Green Status of output DO0Q1 Green Status of output DO1

Product Overview


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1.4 FM 350-1 Software

Configuration PackageTo integrate the FM 350-1 into the S7-300, use the configuration package on thesupplied CD . This contains:

Parameter assignment software with parameter dialogs Software for the CPU (blocks) Documentation

The software for integrating the FM 350-1 into the M7-300 is described inChapters 6 and 11.

Figure 1-3 shows an S7-300 configuration with an FM 350-1 and several signalmodules.

CPUwith user programand FCs of theFM 350-1 FM 350-1

PC/PG with STEP 7

Configuration packagewith parameter dialogs,blocks and manual

Figure 1-3 SIMATIC S7-300 configuration with an FM 350-1

Parameter Assignment Screen FormsThe FM 350-1 is adapted to the task in hand via parameters. These parameter arestored in an SDB and transferred to the module from the CPU.

You can specify the parameters via parameter assignment screen forms. Theseparameter assignment screen forms are installed on your programming device andcalled up within STEP 7.

Product Overview


Software for the S7-300 CPUThe software for the CPU consists of the FC CNT_CTL1 function called in the userprogram of the CPU. This FC enables communication between the CPU and theFM 350-1. There is also the FC DIAG_INF function for the FM 350-1, with whichyou can transfer diagnostics information into the DB of the FC CNT_CTL1.

Product Overview


A5E00073040-02

Installing and Removing the FM 350-1



This Chapter...This chapter contains information on installing and removing the FM 350-1. You will learn what you must look out for when installing. You will get notes and

hints on configuring, arranging and installing an FM 350-1. You will learn, step-by-step, how to install and remove an FM 350-1.

Chapter Overview

Section Description Page2.1 Preparing the Installation 2-22.2 Installing and Removing the FM 350-1 2-3

2



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2.1 Preparing the Installation

Important Safety RulesThere are important rules you must observe for integrating an S7-300 with anFM 350-1 into a plant or a system. These rules and regulations are explained inmanual /1/.

Vertical or Horizontal ArrangementHorizontal arrangement is preferable. For vertical arrangement, you must observethe restricted ambient temperatures (max. 40 C).

Defining the SlotsThe 350-1 function module can be installed like a signal module in any of slots 4 to 11.

Mechanical ConfigurationManual /1/ describes the possibilities open to you for mechanical installation andhow to proceed when configuring. The following gives only a few supplementarynotes.

1. A maximum of eight SMs or FMs are permissible per rack.2. The maximum number is restricted by the width of the modules or the length of

your mounting rail. The FM 350-1 requires an installation width of 40 mm.3. The maximum number is restricted by the total current consumptions of all

modules to the right of the CPU from the 5 V backplane bus supply. The currentconsumption of the FM 350-1 is 160 mA.

4. The maximum number is restricted by the memory required by the CPUsoftware for communications with the FM 350-1.



2.2 Installing and Removing the FM 350-1

Rules

No special protection measures (ESD guidelines) are required for installing anFM 350-1.

Tools RequiredYou require a 4.5 mm flat-bladed screwdriver for installing and removing theFM 350-1.

Setting the Signal Type (Coding Key)Before mounting an FM 350-1 on the mounting rail, you must place the coding keyin the correct position. The following table assigns the position of the coding key tothe signal type used. (refer also to /1/)

Position of the Coding Connector Signal TypeA 5 V differential signalsD 24 V signals



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The letter of the coding connector must point to the arrow.

Figure 2-1 Installing the Coding Connector



Installation ProcedureHow to mount the FM 350-1 on the mounting rail:1. Switch the CPU to the STOP state.2. The FM 350-1 is supplied with an expansion bus. Plug this into the bus

connector of the module to the left of the FM 350-1. (The bus connector islocated on the back and you may have to loosen the neighboring module.)

3. Hang the FM 350-1 onto the rail and swing it down.4. Tighten the screw on the FM 350-1 (tightening torque approximately

0.8 to 1.1 Nm).If further modules are to be installed to the right of the FM 350-1, first connectthe expansion bus of the next module to the right-hand backplane busconnector of the FM 350-1.If the FM 350-1 is the last module in the rack, do not connect an expansionbus!

5. Label the FM 350-1 with its slot number. Use the number wheel supplied withthe CPU for this purpose.Manual /1/ describes the numbering scheme you must use and how to connectthe slot numbers.

6. Install the shield attachment.

Procedure for Removal/Replacement of ModulesHow to remove the FM 350-1:

1. Switch off the auxiliary voltage and the load voltage at the front connector.2. Switch the CPU to the STOP state.3. Open the front panel. If necessary, remove the labeling strip.4. Release the front connector and pull it out.5. Loosen the fixing screw on the module.6. Swing the module out of the mounting rail and unhook it.7. Install the new module if applicable.

Further Notes

Manual /1/ contains further notes on installing and removing modules.



A5E00073040-02

Wiring the FM 350-1


Wiring the FM 350-1

Chapter OverviewThis chapter contains the following information on wiring the FM 350-1: Terminal assignments of the front connector. The function of the connections. Notes on selecting cables. The steps you must execute when wiring the front connector. The status of the module after wiring and switching on the power supply.

Section Description Page3.1 Terminal Assignments of the Front Connector 3-23.2 Wiring the Front Connector 3-73.3 Module Status After Switching On 3-10

3

Wiring the FM 350-1


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3.1 Terminal Assignments of the Front Connector

Front ConnectorYou connect the count signals, the digital inputs and outputs, the encoder supplyand the auxiliary voltage and load voltage via the 20-pin front connector.Figure 3-1 shows the front of the module, the front connector and the inside of thefront panel with the pin assignments.

DIR

Q1

Q0

I2

I1

I0

1

2

34

5

6

7

8

90

1

2

3

4

56

7

8

9

0

1

1

1

1

1

1

1

1

1

1

2

1

2

3

4

5

6

7

8

9

10

1 L +

1MDC 5,2 VSUPPLYDC 24 VA A*

A

B B*

BN N*

N

20

1918

17

15

14

13

11

2 L+

1M

Front connector

2M

CR

350-1AH03-0AE0

COUNTER MODULE

Front of the module Inside of the front panel

SF

FM 350-1

Figure 3-1 Front Connector of the FM 350-1

Wiring the FM 350-1


Front Connector Assignments

Table 3-1 Front Connector Assignments

Conection Name Input/Output

Function

Auxiliary voltage1 1L+ INP 24 V auxiliary voltage2 1M INP Auxiliary voltage ground

5 V encoderRS 422,

symmetric

24 V encoder,asymmetric

24 V pulsegenerator withdirection level

24 V initiator

3 1M OUTP Encoder supply ground4 5.2VDC OUTP 5.2 V encoder supply5 24VDC OUTP 24 V encoder supply6 A A* INP Encoder signal

AEncoder signal A*

7 A INP Encoder signalA

8 B B* INP Encoder signalB

Encoder signalB*

Directionsignal

9 B INP Encoder signalB

10 N N* INP Encoder signalN

Encoder signalN*

11 N INP Encoder signalN

12

Digital inputs and digital outputs13 I0 INP Digital input DI Start14 I1 INP Digital input DI Stop15 I2 INP Digital input DI Set16

17 Q0 OUTP Digital output DO018 Q1 OUTP Digital output DO1

Load voltage19 2L+ INP 24 V load voltage20 2M INP Load voltage ground for the digital inputs and outputs

Wiring the FM 350-1


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NoteThe circuits for the counter inputs (encoder supply, encoder signals) arenon-isolated to the ground of the CPU, that is, terminal 2 (1M) must have alow-resistance connection to CPU ground.If you supply the encoders externally, you must also connect the ground of thisexternal voltage with the ground of the CPU.

Auxiliary Voltage 1L+, 1MConnect a direct voltage of 24 V to the 1L+ and 1M terminals for the voltage supplyof the 5 V and 24 V encoders.

An integral diode protects the module from reverse polarity of the auxiliary voltage.The module monitors the connection of the auxiliary voltage.

5.2 VDC Encoder SupplyThe module generates a voltage of 5.2 V from the auxiliary voltage 1L+/1M at amaximum current of 300 mA that is available at the 5.2 VDC connection for theshort-circuit-proof supply of a 5 V encoder. The encoder supply is checked forshort-circuit.

24 VDC Encoder SupplyFor the 24 V voltage supply of an encoder, the voltage 1L+/1M is made availableand short-circuit proof at the 24 VDC output. The encoder supply is monitored forshort-circuit.

5 V Encoder Signals A/A, B/B, N and NYou can connect incremental encoders with 5 V differential signals to the frontconnector in accordance with RS 422, that is, incremental encoders with thedifferential signals, A/A, B/B, N and N.The signals A/A, B/B, N and N are connected via the terminals so labeled.The signals N and N are only connected if you want to set the counter to the zeromark of the encoder.

The inputs are not electrically isolated from the bus of the S7-300 (refer to the noteon this page).

Wiring the FM 350-1


24 V Encoder Signals A*, B* and N*24 V signals are represented by the letters A*, B* and N*.You can connect three different encoder types to each counter:

Incremental encoders with 24 V signals:The signals A*, B* and N* are connected via the terminals so labeled.

Pulse encoders without direction level:The signal is connected to terminal A*.

Pulse encoders with direction level:The count signal is connected to terminal A*. The direction level is connected toterminal B*.

The inputs are not galvanically isolated from the S7-300 bus (see note onpage 3-3).

Input Filter for 24 V Encoder SignalsFor the purpose of suppressing interference, you can parameterize input filters (RCelements) with a uniform filter time for the 24 V inputs A*, B* and N. The followinginput filters are available:

Table 3-2 Input Filters for 24 V Encoder Signals


Input Filter 2

Typical input delay 1 s 15 sMaximum counting frequency 200 kHz 20 kHzMinimum pulse width of the count signals 2.5 s 25 s

Digital Inputs DI Start, DI Stop and DI SetYou can use digital inputs DI Start and DI Stop for the gate control of the counter.Gate control can be both level-controlled and edge-controlled (refer to Chapter 8).Digital input DI Set is used to set the counter to the load value.The digital inputs are operated with a nominal voltage of 24 V.The digital inputs are galvanically isolated from the bus of the S7-300 and thecounter inputs.

Wiring the FM 350-1


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Input Filter for Digital InputsFor the purpose of suppressing interference, you can parameterize input filters(RC elements) with a uniform filter time for digital inputs I0, I1 and I2. The followingtwo input filters are available.

Table 3-3 Input Filters for Digital Inputs


Input Filter 2

Typical input delay 1 s 15 sMaximum frequency of the input signals 200 kHz 20 kHzMinimum pulse width of the input signals 2.5 s 25 s

Digital Outputs DO0 and DO1The FM 350-1 features two digital outputs, DO0 and DO1, for directly triggeringcontrol processes.

The digital outputs are supplied with the 2L+ load voltage.The digital outputs are galvanically isolated from the S7-300 bus and the counterinputs.

The digital outputs are source outputs and can be loaded with a load current of0.5 A. They are protected from overload and short-circuit.

NoteRelays and contactors can be connected direct without external circuitry.

The time characteristics of the digital outputs depend on the parameterization andare explained in more detail in Chapter 8.

Load Voltage 2L+/ 2MFor supplying digital outputs DO0 and DO1, a load voltage of 24 V must besupplied to the module via terminals 2L+ and 2M.

An integral diode protects the module from polarity reversal of the load voltage.The load voltage 2L+/2M is not monitored by the FM 350-1.

Wiring the FM 350-1


3.2 Wiring the Front Connector

CablesThere are some rules for you to observe when selecting cables: The cables for digital inputs DI Start, DI Stop and DI Set must be shielded. The cable for the counter signals must be shielded. You must apply the shields of the counter signal cables both at the pulse

encoder and in the immediate vicinity of the module via the shield attachment,for example.

The cables A/A, B/B and N/N of the incremental 5 V encoder must be twisted inpairs.

Shield onshield support

Shield onhousing

A

B

N5.2VDC1 M

6

7

89

10

Front connector

11

34

NB

A

Twisted cables

Figure 3-2 Details Regarding the Connection of an Incremental 5V Encoder

Terminal 2 (1M) of the front connector must have a low-resistance connection tothe ground of the CPU. If you supply the encoder with an external voltage, youmust also connect the ground of this external voltage with the ground of the CPU.

Wiring the FM 350-1


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Shield onshield support

Shield onhousing

A *

B *

N *

24VDC

1 M

6

8

10

5

3

Front connector

Figure 3-3 Details Regarding the Connection of an Incremental 24V Encoder

Use flexible cables with cross-sections of 0.25 to 1.5 mm.

NoteIf the encoders are supplied via the module, the cable cross-section must be largeenough to carry the required voltage to the encoder despite voltage drops over thecable. This applies especially in the case of incremental 5 V encoders.

A wire end ferrule is not required. If you use wire end ferrules then use onlythose without insulation collar in accordance with DIN 46228 Form A, shortversion!

Wiring the FM 350-1


Wiring StepsProceed as follows when wiring the front connector:

! WarningThere is a danger of personal injury.If you wire the front connector of the FM 350-1 when the power is switched on, youare in danger of injury from electric shock.Wire the FM 350-1 only when the power is switched off!

1. Open the front panel and place the front connector in the wiring position.2. Strip the conductors (length 6 mm).3. Are you using wire end ferrules?

If so: Press-fit the wire end ferrules onto the conductors.4. Feed the enclosed strain relief clamp into the front connector.5. If the wires leave the module at the bottom, begin wiring at the bottom,

otherwise begin at the top. Also tighten unassigned terminals (tightening torque0.6 to 0.8 Nm).

6. Tighten the strain relief clamp for the cable chain.7. Push the front connector into the operating position.8. Apply the cable shields to the shield attachment or to the shield bar.9. Label the terminals on the labeling strip.

Figure 3-4 FM 350-1 with Shielded Cables and the Shield Support

Wiring the FM 350-1


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3.3 Module Status After Switching On

Default SettingThe state in which the module is after the power supply is turned on whenparameters are still not being transmitted: No gate in other words, gate open Counter inputs with default setting for 5 V differential signals, track B not

inverted; single evaluation (see 9-4); Count limit 32 bits Counter status zero Counter setting with input DI Set (and zero mark) inhibited Input delay for digital inputs I0, I1 and I2: typically 1 s

(max. frequency: 200 kHz, minimum pulse width: 2.5 s) Input delay for 24 V counter inputs: typically 1 s

(max. frequency: 200 kHz, minimum pulse width: 2.5 s) Outputs DO0 and DO1 disabled Pulse duration = 0 No process interrupts set Operating mode Continuous count set Status signals are updated

Assigning Parameters to the FM 350-1



Chapter OverviewIn this chapter, you will learn how to install and start parameter assignment screenforms.

The parameter assignment screen forms have an integral help function thatsupports you in parameterizing and starting up the FM 350-1.

Section Description Page4.1 Installing and Calling Parameter Assignment Screen Forms 4-2

4



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4.1 Installing and Calling Parameter Assignment ScreenForms

Marginal ConditionsThe following conditions apply for transferring parameter assignment data to theCPU:

STEP 7 (version 5.0) is correctly installed on your PG.The following instructions refer specifically to STEP 7 (version 5.2)

The programming device must be correctly connected to the CPU The CPU must be in STOP

NoteYou must not plug in or remove any S7-300 modules during data exchange overthe MPI!

Installing the Parameter Assignment ScreensThe whole configuration package is located on the enclosed CD. To install theconfiguration package, perform the following steps:1. Uninstall your present configuration package, if any.2. Insert the CD into the CD drive on your PG or PC.3. In Windows 95/Windows NT/Windows 98, open the dialog box for installing

software by double-clicking on the Software icon on the Control Panel.4. In the dialog box, select the CD drive and, in the directory called

FMx50-1\Disk1, select the Setup.exe file and start the installation operation.5. Follow the successive instructions displayed by the installation program.

Result: The components of the configuration package are installed in thefollowing directories: SIEMENS\STEP7\S7LIBS\FMx50LIB: FCs, UDTs SIEMENS\STEP7\S7FCOUNT: configuration software, Readme, online Help SIEMENS\STEP7\EXAMPLES: Examples SIEMENS\STEP7\S7MANUAL\S7FCOUNT: Getting Started, manuals

NoteIf you selected a directory other than SIEMENS\STEP7 when you installedSTEP 7, that directory will be entered.



Calling the Parameter Assignment ScreensTo call the parameter assignment screens of the FM 350-1, perform the followingsteps:

1. Place the order number on a vacant slot.2. Double-click on the order number.3. Acknowledge with OK any dialog box which may appear and prompt you to

save the configuration.



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Programming the FM 350-1

Chapter OverviewThis chapter contains all the information necessary for programming the FM 350-1in the S7-300. For linking the FM 350-1 into a user program, you are provided withSTEP 7 blocks that make handling the desired functions easy for you.This chapter describes these blocks.

Block Number Block Name MeaningFC 2 CNT_CTL1 Controlling of the FM 350-1FC 3 CNT_CTL2 Controlling of the FM 350-1 (only in isochrone

mode)FC 1 DIAG_INF Read diagnostics data set 1 from the FM 350-1

Use of the blocks is illustrated in an example program. The example programshows block calls and contains the necessary data block.

You can also operate the FM 350-1 without FCs, in which case you control andmonitor the FM 350-1 via the control and check-back interface.

Section Description Page5.1 The CNT_CTL1 Function (FC 2) 5-35.2 The CNT_CTL2 Function (FC 3) 5-105.3 The DIAG_INF Function (FC 1) 5-115.4 Application Example 5-125.5 Technical Data for the Blocks 5-15

5.6 Programming the FM 350-1 without FCs 5-165.6.1 Control and Check-back Interface for the Count Modes 5-165.6.2 Control and Check-back Interface for the Measure Modes 5-245.6.3 Using the Interface with the Complete Acknowledgement Principle 5-315.6.4 Restart Coordination 5-355.7 Reaction to CPU STOP and CPU STOP-RUN 5-36

5



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Exchange of Data between the User Program and FM 350-1 with FCsThe figure below illustrates the exchange of data

User program in the CPU

FM 350-1Data

DBx

Program

FC2

Instructions

.

.

.

.

Feedback Interface

Control Interface

Figure 5-1 Exchange of Data between the User Program and FM 350-1 with FCs

Accessing the Control and Check-back Interface with STEP 7 ProgrammingYou can access the FM 350-1 control and feedback interface from the userprogram either using standard FCs or with load and transfer commands. Mixedoperation is not permitted.

Standard FC Load and transfercommands

Control interface Write with CNT_CTL1or CNT_CTL2

Transfer command, e.g. T PAD

Feedback interface Read with CNT_CTL1or CNT_CTL2

Load command, e.g. L PED



5.1 The CNT_CTL1 Function (FC 2)

RequirementThe data required for the CNT_CTL1 function is stored in a DB on the CPU. TheCNT_CTL1 function transfers data cyclically from this DB to the FM and fetchesdata from the FM.

You create the DB under STEP 7 as a data block with assigned user-specific datatype. Select UDT 2 as the source file. UDT 2 was copied to the block library called FMx50LIB when the FCs were installed. You must not modify UDT 2. Copy UDT 2together with the FCs into your project. Before programming the FM 350-1, thefollowing valid data must be assigned to the DB of the CNT_CTL1 function: Module address

You set the module address (base address of the FM 350-1) when configuringyour hardware.You can enter the address automatically in the DB by selecting the module inHW Config, and then selecting a data block from the Properties dialog byclicking on the Mod Addr button.

Channel addressThe channel address is the same as the module address in pointer format.

User data lengthThe user data length is 16.

You can save these data by means of a parameter assignment screen (refer to theleaflet Getting Started with Commissioning) or by means of the user program inthe DB.



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ExampleYou will find below an example of how to implement the transfer of the moduleaddress, the channel address and the user data length in OB100.The symbol table contains the following assignments for this example:

CNT_CHAN1 DB 1 DB with the counter data

Program the transfer as follows in STL:

STL Explanation

L 512 // Module address = 512T CNT_CHAN1.MOD_ADR // Transfer of module addressL P# 512.0 // Module address in pointer formatT CNT_CHAN1.CH_ADR // Transfer of the channel addressL 16 // User data length = 16T CNT_CHAN1.U_D_LGTH // Transfer of the user data length

CallThe CNT_CTL1 function can be called either cyclically or in a time-controlled orisochrone interrupt OB. You cannot call the CNT_CTL1 function in anevent-controlled interrupt program.The CNT_CTL1 function call in the STL and LAD notations is given below.

STL notation

LAD notation

CALL CNT_CTL1 (

DB_NO := ,

CNT_CTL1

SW_GATE := ,

EN ENO

GATE_STP := ,

DB_NO OT_ERR

OT_ERR_A := ,

SW_GATE

SET_DO0 := ,

GATE_STP

SET_DO1 := ,

OT_ERR_A

OT_ERR := ,

SET_DO0

L_DIRECT := ,

SET_DO1

L_PREPAR := ,

L_DIRECT

T_CMP_V1 := ,

L_PREPAR

T_CMP_V2 := ,

T_CMP_V1

C_DOPARA := ,

T_CMP_V2

RES_SYNC := ,

C_DOPARA

RES_ZERO := )

RES_SYNC

RES_ZERO



CNT_CTL1 Function Parameters

Name DeclarationType

DataType

Meaning The User... TheBlock...

DB_NO INPUT INT Number of the data block withthe counter data

enters this scans this

SW_GATE INPUT BOOL Counter control bit SW gate(start/stop)

sets andresets this

scans this

GATE_STP INPUT BOOL Counter control bit Gate stop sets andresets this

scans this

OT_ERR_A INPUT BOOL Acknowledge operator error sets andresets this

scans this

SET_DO0 INPUT BOOL Set/Reset DO0 sets andresets this

scans this

SET_DO1 INPUT BOOL Set/Reset DO1 sets andresets this

scans this

OT_ERR OUTPUT BOOL Operator error occurred scans this sets andresets this

L_DIRECT 2) IN-OUT BOOL Count:Initiation bit for direct andpreparatory loading of a counter

sets thisscans andresets this

Measure: Must NOT be set

-

resets this

L_PREPAR 2) IN-OUT BOOL Count:Initiation bit for preparatoryloading of a counter

sets this scans andresets this

Measure:Transmission of the lower limit

resets this

T_CMP_V1 2) IN-OUT BOOL Count:Initiation bit for transferring thecomparison value 1


Measure:Transmission of the upper limit

resets this

T_CMP_V2 2) IN-OUT BOOL Count:Initiation bit for transferring thecomparison value 2


Measure:Update time

resets this

C_DOPARA IN-OUT BOOL Initiation bit for parameterchange


RES_SYNC IN-OUT BOOL Delete Synchronization statusbit


RES_ZERO IN-OUT BOOL Delete Zero pass status bit sets this scans andresets this

1) This parameter must not be set at the same time as the L_DIRECT, L_PREPAR, T_CMP_V1 or T_CMP_V2parameter.

2) This parameter must not be set at the same time as the C_DOPARA parameter.



A5E00073040-02

Editing JobsYou make a job request for the FM 350-1 via the relevant FC parametersL_DIRECT, L_PREPAR, T_CMP_V1, T_CMP_V2, C_DOPARA, RES_SYNC,RES_ZERO, and OT_ERR_A.

You must enter the appropriate values for the job (load value, comparison values,lower limit, upper limit, update time) before you call the FC in the DB.A set in/out parameter (L_DIRECT, L_PREPAR, T_CMP_V1, T_CMP_V2,C_DOPARA, RES_SYNC and RES_ZERO) is deleted again by the CNT_CTL1function after completion of the job. You can see from this that processing of the jobhas been completed by the FM 350-1. If necessary, you can incorporate thisinformation in your user program.

Transferring ValuesDepending on the operating mode, you can transfer values by setting this functionparameter.

Operating mode Function parameterCount L_DIRECT, L_PREPAR, T_CMP_V1, T_CMP_V2, C_DOPARAMeasure L_PREPAR, T_CMP_V1, T_CMP_V2, C_DOPARA

You can transfer several values at the same time:

In ... you can transfer at the same timeCount mode Load value

Comparison value 1 Comparison value 2

(DB parameter LOAD_VAL)(DB parameter CMP_V1)(DB parameter CMP_V2)

Measure mode Lower limit Upper limit Update time

(DB parameter LOAD_VAL)(DB parameter CMP_V1)(DB parameter CMP_V2)

If a value is incorrect, you must first acknowledge this operator error withOT_ERR_A before the FM 350-1 can accept any further values. You should thencorrect the value rejected with the operator error and transfer it again.

NoteIf you use the function parameter L_DIRECT, L_PREPAR, T_CMP_V1 orT_CMP_V2 to load the value LOAD_VAL, CMP_V1 or CMP_V2, you cannotchange the parameter assignments at the same time using function parameterC_DOPARA.This would lead to an OT_ERR operator error that you would have to acknowledgewith OT_ERR_A.



Time Required to Transfer ValuesThe time required to transfer values is shown in the table below:

Use of the FM 350-1 Time requiredCentralized At least 4 OB 1 cyclesDecentralized (non-isochrone mode) At least 5 PROFIBUS DP cyclesDecentralized (isochrone mode) Transfer of just one value 5 PROFIBUS DP cycles If the transfer of several values is

initiated at the same time the valuesbelow reach FM 350-1 the 1st value: 5 PROFIBUS DP cycles after initiation the 2nd value: 6 PROFIBUS DP cycles after initiation the 3rd value: 7 PROFIBUS DP cycles after initiation

Parameters for Transferring Values in the DB (Count Modes)Table 5-1 shows the range of the DB in which you transfer the LOAD_VAL,CMP_V1 and CMP_V2 parameters.

The LOAD_VAL parameter (bytes 14 to 17) has two meanings: If you set function parameter L_DIRECT or L_PREPAR, LOAD_VAL is

interpreted as a load value. If you set function parameter C_DOPARA, you can use byte 14 to define the

behavior of outputs DO0 and DO1. Bytes 15 and 16 are interpreted ashysteresis and pulse duration.



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Table 5-1 Parameters for transferring values in the DB (Count modes) DB address Parameter Meaning14.0 LOAD_VAL Load value; direct and preparatory loading with function parameter:

L_DIRECTLoad value; preparatory loading with function parameter:L_PREPAR

14.0 LOAD_VAL The behavior of outputs DO0 and DO1, hysteresis and pulse duration, aredefined using function parameter:C_DOPARA

Bit 3 Bit 2 Bit 1 Bit 0 Behavior of output DO0x 0 0 0 Inactivex 0 0 1 Active from comparison value to overflowx 0 1 0 Active from comparison value to underflowx 0 1 1 Active on reaching the comparison value for

pulse duration (up/down)x 1 0 0 Active on reaching the comparison value for

pulse duration (up)x 1 0 1 Active on reaching the comparison value for

pulse duration (down)x = irrelevant

Bit 7 Bit 6 Bit 5 Bit 4 Behavior of output DO1x 0 0 0 Inactivex 0 0 1 Active from comparison value to overflowx 0 1 0 Active from comparison value to underflowx 0 1 1 Active on reaching the comparison value for

pulse duration (up/down)x 1 0 0 Active on reaching the comparison value for

pulse duration (up)x 1 0 1 Active on reaching the comparison value for

pulse duration (down)x 1 1 0 Switch to comparison value

x = irrelevant

15.0 Hysteresis (value range 0...255)16.0 Pulse duration (value range 0..250)17.0 Reserved = 018.0 CMP_V1 Comparison value 1; load with function parameter:

T_CMP_V122.0 CMP_V2 Comparison value 2; load with function parameter:

T_CMP_V2



Parameters for Transferring Values in the DB (Measure Modes)Table 5-2 shows the range of the DB in which you transfer the LOAD_VAL,CMP_V1 and CMP_V2 parameters.

The LOAD_VAL parameter (bytes 14 to 17) has two meanings: If you set function parameter L_PREPAR, LOAD_VAL is interpreted as a lower

limit

If you set function parameter C_DOPARA, byte 14 is used to define thebehavior of output DO0.

You must not set the L_DIRECT parameter for a Measure mode.

Table 5-2 Parameters for transferring values in the DB (Measure modes) DB address Parameter Meaning14.0 LOAD_VAL Lower limit; load with function parameter: L_PREPAR14.0 LOAD_VAL Behavior of DO0; define with function parameter: C_DOPARA

Bits 2 to 7 Bit 1 Bit 0 Behavior of output DO0irrelevant 0 0 No comparisonirrelevant 0 1 Exceeds limitsirrelevant 1 0 Under lower limitirrelevant 1 1 Above upper limit

15.0 Reserved = 016.0 Reserved = 017.0 Reserved = 018.0 CMP_V1 Upper limit 1; Load with function parameter: T_CMP_V120.0 CMP_V2 Update time; Load with function parameter: T_CMP_V2

Restart CharacteristicsAs soon as the CNT_CTL1 function detects a restart (CPU restart or FM restart),any pending job is deferred and the restart is acknowledged first. Any job alreadyinitiated by you is continued only after the restart has been completed and will notbe lost.

Error MessagesIf an operator error occurs in the case of an FC call, this is reported in the OT_ERRparameter. The error information can then be read out in DB1 (OT_ERR_Bvariable). With the help of the OT_ERR_A parameter, you can then acknowledgeoperator errors. No new operator error will be reported until you haveacknowledged the previous one.



A5E00073040-02

5.2 The CNT_CTL2 Function (FC 3)

FunctionalityThe CNT_CTL2 function essentially has the same functionality as the CNT_CTL1function (see section 5.1). The differences compared to the CNT_CTL1 functionare explained below.

Possible UsesThe CNT_CTL2 function only works in an isochrone OB.

If you call the CNT_CTL2 function in a non-isochrone OB, you will generateoperator error no. 91. You will then not be able to exchange data with theFM 350-1.

Mode of OperationThe CNT_CTL2 function is particularly suitable for applications in which you wantto send the same job (e.g. Load comparison value) to the FM 350-1 several timesin quick succession. While the CNT_CTL1 function is ideally used to initiate a newjob in every fifth PROFIBUS DP cycle, with the CNT_CTL2 function, this occurs inevery second PROFIBUS DP cycle.

The block is ready for a job when the relevant initiation bit is set to 0. Completion ofa job is not displayed separately.If a communication problem or a data or operator error occurs, it cannot beassigned to a particular job, so the block will stop processing the job and willgenerate an operator error no. 90, which can be acknowledged. Once you haveacknowledged the error by setting the OT_ERR_A parameter, any outstanding jobswill be (further) processed.Acknowledgement of an operator error is deemed to be successful if the OT_ERRparameter is reset. You should therefore leave the OT_ERR_A parameter set toguarantee acknowledgement. There is no point in initiating further jobs until theacknowledgement is successful.

NoteIn isochrone mode, you cannot start several value transfers at the same time usingthe CNT_CTL2 function.



5.3 The DIAG_INF Function (FC 1)

FunctionalityThe DIAG_INF function reads data set DS1 from the FM 350-1 and makes itavailable to you in the DB of the CNT_CTL1 function. The transfer works asfollows:

If the initiation parameter is set (IN_DIAG = TRUE), DS1 is read out from theFM 350-1.

DS1 is entered in the DB of the CNT_CTL1 function from DW 54. DS1 istransferred with the help of the SFC RDSYSST.

The return code of the SFC (RET_VAL) is copied to the RET_VAL parameter ofthe DIAG_INF function .

As soon as the function has been executed, the IN_DIAG initiation parameter isreset and the transfer is reported to be complete.

Manual /2/ contains a full description of the SFC RDSYSST.

CallThe DIAG_INF function can be called in the cycle and in the interrupt program.There is no point in calling it in the time-controlled program.The DIAG_INF function call is given in the STL and LAD notations below.

STL notation

LAD notation

CALL DIAG_INF(

DB_NO := ,

DIAG_INF

RET_VAL := ,

EN ENO

IN_DIAG := );

DB_NO RET_VAL

IN_DIAG

DIAG_INF Function Parameters

Table 5-3 DIAG_INF function parameters

Name DeclarationType

Data Type Meaning The User... The Block...

DB_NO INPUT INT Number of the CNT_CTL1function data block

enters this scans this

RET_VAL OUTPUT INT Return code of the SFC 51 scans this enters thisIN_DIAG IN-OUT BOOL Initiation bit read diagnostics

data set DS1sets andscans this

resets this



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5.4 Application Example

IntroductionThe example below shows how the CNT_CTL1 function can be used for thefunctions Transfer load value to FM 350-1 and Start counter. These functions arerepresentative of all functions here.

STL ExplanationL #1000; // Enter load value inT CNT_CHAN1.LOAD_VAL; // the DB 1 (double integer).

A INITIATE;S LOAD_DIRECT; // DIRECT input parameterR INITIATE;

CALL CNT_CTL1, ( // FC call with the DB 1DB_NO :=1 // Channel 1SW_GATE :=SW_GATE // Control software gateGATE_STP :=GATE_STP // Stop gateOT_ERR_A :=CON_OT_ERR, // Acknowledge operator errorSET_DO0 :=SET_DO0, // SET outpour DO0SET_DO :=SET_DO1, // SET output DO1OT_ERR :=OTT_ERR, // Operator error occurredL_DIRECT :=L_DIRECT, // Load new counter valueL_PREPAR :=L_PREPAR, // Prepare new counter valueT_CMP_V1 :=T_CMP_V1, // Load new comparison value 1T_CMP_V2 :=T_CMP_V2, // Load new comparison value 2C_DOPARA :=C_DOPARA, // Initiate parameter changeRES_SYNC :=RES_SYNC, // Delete synchronization status bitRES_ZERO :=RES_ZERO); // Delete zero pass status bit

AN OT_ERR; // If no error has occurred,JC CONT; // CONTinue

// *** Error evaluation START ***L CNT_CHAN1.OT_ERR_B; // Read and display additionalT OUTPUT; // information.SET // Generate RLO 1S CON_OT_ERR // Acknowledge error... // Further error responseJU END; // ***Error evaluation END ***

CONT: .. // Continue with normal executionAN L_DIRECT; // Load direct function is readyS SW_GATE; // Open software gate;

END:



Description of the SymbolsTable 5-4 lists the symbols used in the example. You define your own symbolassignments in the S7 Symbol Table.

Table 5-4 Symbols in Example

Symbols Absolute(Example)

Comment

CNT_CHAN1 DB 1 Data block for CNT_CTL1 functionCNT_CHAN1.LOAD_VAL DB1.DBD14 Counter value specification in DB 1 (double word)TRIGGER M 10.0 Trigger memory marker formed as a result of the

technological requirementSW_GATE M 20.0 Start counterGATE_STP M 20.1 Close counter gateOT_ERR_A M 20.2 Acknowledge operator errorSET_DO0 M 20.3 Set output DO0SET_DO1 M 20.4 Set output DO1OT_ERR M 20.5 Operator error occurredL_DIRECT M 20.6 Direct and preparatory loading of counter valueL_PREPAR M 20.7 Load value of counter in preparationT_CMP_V1 M 21.0 Load comparison value 1T_CMP_V2 M 21.1 Load comparison value 2C_DOPARA M 21.2 Initiate parameter changeRES_SYNC M 21.3 Reset synchronization status bitRES_ZERO M 21.4 Reset zero pass, overflow, underflow and comparator

or end of measurement status bitCNT_CHAN1.OT_ERR_B DB1.DBB40.0 Operator error information in DB 1



A5E00073040-02

Description of the ProcedureRequirement

The value to be transferred must have been entered in DB 1.

Load value is transferred and started

The load value of the channel is transferred to the FM 350-1 by means of the FCcall.

There are two parameters available for transferring the load value to the FM 350-1.When calling the CNT_CTL1 function, the parameter selected is either L_DIRECTor L_PREPAR.

Parameter L_DIRECT defines that the load value is transferred directly and inpreparation to the counter (you set the trigger bit L_DIRECT=1 in your userprogram).Parameter L_PREPAR defines that the load value is only loaded in preparation(you have to set the trigger bit L_PREPAR=1 in your user program).The load value loaded in preparation is then applied at the next cause that sets thecounter.

The FC must therefore be called until the FC has reset the selected trigger bit(L_DIRECT or L_PREPAR). The in/out parameter remains set during the transfer.With regard to the exchange of data with the FM, the CNT_CTL1 function does notissue an error message.If the trigger bit you set has been reset by the CNT_CTL1 function, the FM 350-1has applied the load value. The read load value stored in DB 1 is updated by theCNT_CTL1 function (applicable only if you are working without the latch setting).It takes at least four FC calls to transfer the load value.



5.5 Technical Data for the Blocks

Technical data CNT_CTRLfunction

CNT_CTL1function

CNT_CTL2function

DIAG_INFfunction

Block number FC 0 FC 2 FC 3 FC 1Version 3.0 3.0 3.0 3.0

Size in RAM 456 bytes 796 bytes 1426 bytes 246 bytesSize in load memory 538 bytes 950 bytes 1578 bytes 326 bytesSize in data area 70 bytes long data block that is specified when the FC is called.Size in local data area 4 bytes 46 bytes 46 bytes 38 bytesSystem function called SFC 6

(RD_INFO)SFC 6(RD_INFO)

SFC 51RDSYSST

Processing time in theCPU 316-2 DP(FM 350-1 centralized)

0.98 ms 1.25 ms 2.12 ms 3.19 ms

Processing time in theCPU 316-2 DP(FM 350-1decentralized)

0.78 ms 1.06 ms 1.99 ms 0.87 ms

Processing time in theCPU 416-2 DP(FM 350-1decentralized)

30 s 70 s 92 s 134 s

Isochrone mode no yes yes yesNon-isochrone mode yes yes no yes



A5E00073040-02

5.6 Programming the FM 350-1 without FCs

If you want to operate the FM 350-1 without FCs, you can control and monitor theFM 350-1 directly via the control and check-back interface (working data interface).The working data interface starts at the modules starting address and is 16 byteslong.Load commands allow you to read the check-back interface.

Transfer commands are used to write to the control interface.

Mixed use of load / transfer commands and programming with FCs is notpermitted.

5.6.1 Control and Check-back Interface for the Count Modes

Control Interface for Count ModesThe LOAD_VAL parameter (bytes 0 to 3) has two meanings: If you set the L_DIRECT or L_PREPAR bit, LOAD_VAL is interpreted as a load

value.

If you set the C_DOPARA bit, you can use byte 0 to define the behavior ofoutputs DO0 and DO1. Bytes 1 and 2 are interpreted as hysteresis and pulseduration.



Table 5-5 Control interface for Count modes (outputs) Offset from

startingaddress

Parameter Meaning

Bytes 0 to 3 LOAD_VAL Load value; direct and preparatory loading with bit: L_DIRECTLoad value; preparatory loading with bit: L_PREPAR

Byte 0 LOAD_VAL The behavior of outputs DO0 and DO1, hysteresis and pulse duration, are defined using bit: C_DOPARA

Bit 3 Bit 2 Bit 1 Bit 0 Behavior of output DO0x 0 0 0 Inactive

x 0 0 1 Active from comparison value tooverflow

x 0 1 0 Active from comparison value tounderflow

x 0 1 1 Active on reaching the comparisonvalue for pulse duration (up/down)

x 1 0 0 Active on reaching the comparisonvalue for pulse duration (up)

x 1 0 1 Active on reaching the comparisonvalue for pulse duration (down)

x = irrelevant

Bit 7 Bit 6 Bit 5 Bit 4 Behavior of output DO1x 0 0 0 Inactive

x 0 0 1 Active from comparison value tooverflow

x 0 1 0 Active from comparison value tounderflow

x 0 1 1 Active on reaching the comparisonvalue for pulse duration (up/down)

x 1 0 0 Active on reaching the comparisonvalue for pulse duration (up)

x 1 0 1 Active on reaching the comparisonvalue for pulse duration (down)

x 1 1 0 Switch to comparison valuex = irrelevant

Byte 1 Hysteresis (value range 0...255)Byte 2 Pulse duration (value range 0..250)Byte 3 Reserved = 0Bytes 4 to 7 CMP_V1 Comparison value 1; load with bit: T_CMP_V1



A5E00073040-02

Table 5-5 Control interface for Count modes (outputs), continuedOffset from

startingaddress

MeaningParameter

Bytes 8 to 11 CMP_V2 Comparison value 2; load with bit: T_CMP_V2Byte 12

NEUSTQ

OT_ERR_A

Bit 7: Reserved = 0Bit 6: Restart acknowledgementBit 5: Reserved = 0Bit 4: Reserved = 0Bit 3: Operator error acknowledgementBit 2: Reserved = 0Bit 1: Reserved = 0Bit 0: Reserved = 0

Byte 13

SW_GATEGATE_STPENSET_DNENSET_UP

Bit 7: Reserved = 0Bit 6: Reserved = 0Bit 5: Reserved = 0Bit 4: Reserved = 0Bit 3: SW gate control bitBit 2: General gate stopBit 1: Enable synchronization downBit 0: Enable synchronization up

Byte 14

SET_DO1SET_DO0CTRL_DO1CTRL_DO0

Bit 7: Reserved = 0Bit 6: Reserved = 0Bit 5: Reserved = 0Bit 4: Reserved = 0Bit 3: Control bit DO1Bit 2: Control bit DO0Bit 1: Enable DO1Bit 0: Enable DO0

Byte 15 C_DOPARA 1)

RES_ZERO

RES_SYNCT_CMP_V2 2)

T_CMP_V1 2)

L_PREPAR 2)

L_DIRECT 2)

Bit 7: Reserved = 0Bit 6: Change function of DO0/DO1, hysteresis or pulse durationBit 5: Reset status bits for zero pass, overflow, underflow

and comparatorBit 4: Reset status bit for synchronizationBit 3: Load comparison value 2Bit 2: Load comparison value 1Bit 1: Preparatory loading of counterBit 0: Direct and preparatory loading of counter

1) You must not set this bit at the same time as bit 0, 1, 2 or 3 of byte 15.2) You must not set this bit at the same time as bit 6 of byte 15.



Explanation of the Control Bits for the Count Modes

Table 5-6 Explanation of the control bits for the Count modes

Control bits Explanation

C_DOPARA Mod

fm3501_b

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