Resp Req System Architecture: Overview diagram Indicate the inter-connection of the various system components Integrated central system database for all tags and automation tasks Y/N Client / Server architecture Y/N Explain Single point(s) of failure Y/N Explain failure modes. Show data transfer paths Redundancy: Expalin whether hot-standby and seamless redundancy or whether - I/O Y/N manual intervention is required to get redundancy - Controllers Y/N - Power supplies Y/N - Control network Y/N - Workstations Y/N System maxima: Explain whether maximum figures apply to a single integrated - Controllers system on one control network or whether numerous networks need - Workstations to be combined in order to achieve the stated maxima - I/O Can multiple engineering workstations be placed in different locations, on the same network Y/N On-line addition of workstations Y/N and controllers Shutdown of any node on the network should not affect the operation of the remaining nodes Y/N Scalability, upgradability and expandability of the system Provide exact details Remote user access for plant control and system configuration via office LAN/WAN Y/N Provide details Control Network: Type Speed Typical distances Report by Exception Y/N Does HMI poll all data every scan or are updates based on change of data. This aspect has a major influence on network loading and hence update speeds Hardware: Multi-function controller module - is same basic hardware used for all applications Y/N Does one controller module type, handle all functionality or are different controller modules required for different functions Auto-addressing of controllers Y/N Does the system recognise new controllers on the network or is manual configuration required Modules replaceable under power Y/N Is "Hot-swap" supported Auto-sense of I/O modules Y/N Resolution of A/I modules 16-bit is considered minimum requirement Resolution of A/O modules 12-bit is considered minimum requirement Accuracy of A/I modules % of scale Accuracy of A/O modules % of scale Direct-connect RTD and Thermocouple modules Y/N State types and ranges Direct-connect I.S. modules Y/N Two-wire and four-wire operation in same I/O module Y/N Important if a plant makes use of a mixed bag of instrumentation. Not all devices are two-wire, for example mag flow meters, coriolis flow meters usually require power to the instrument Mix-and-Match all types of I/O modules on same backplane without restriction Y/N Hardware keying of modules to prevent wrong insertion Y/N Do outputs fail to user-defined known state Y/N Important from a safety and orderly shut down perspective Environmental: General Provide details of operating temperature range and other relevant environmental parameters Environmental protection classification of modules Eg. G2, G3, etc Conformal coating of modules Y/N State maximum power "Brown-out" capabilities Auto power-fail recovery Y/N Provide details Typical footprint sizes Provide details System Configuration: Configure entire system from a single engineering workstation Y/N Configure by tag name I.e. not by means of physical I/O address, which means that configuration cannot start until all I/O addresses are exactly known. Configuration by tag name implies that configuration can start any time once the tag names have been identified on the P&ID drawings Global tag search / browse function Y/N External tag bulk edit functionality Y/N For example, generate and edit tags in a spreadsheet - import tags into the control system Modular software configuration Y/N Provide details Method of configuration Provide details of configuration methods. eg. Drag-and-Drop, SFC, Ladder, etc Library of pre-engineered control strategies Y/N Provide list of function blocks and other relevant details. User-defined control strategies saved for future re-use Y/N Explain how this is done Variable function block execution intervals, under user control Y/N Give details Does the system support on-line configuration changes and upgrades Y/N Does the system support real-time monitoring of control parameters at function block level Y/N Provide details Reporting of controller loading and indication when limits are being reached Y/N Embedded advanced control functionality as integral part of the system Provide details eg. Auto-tune, Fuzzy Logic, Neural Networks, etc Embedded S88 Batch capabilities Y/N Explain recipe-handling facilities and execution of Batch-type applications Embedded program and process simulation software Y/N Provide details. Useful for testing control stategies and seeing how a plant behaves, without the physical connection of I/O Operator Interface: General Describe features of operator station eg. navigation, alarm handling, event displays, graphics, faceplates, user-defined objects, background script language capabilities, etc Can operational comments be logged in real time Y/N Explain how Can instructions from supervisory staff to operational staff be logged in real time Y/N Explain how Does the system support automatic bi-directional data transfer between Excel spreadsheets and the Y/N Is asset management information and diagnostic data from field instruments seamlessly available in Y/N Provide details Security: Password and other access control methods for engineering changes, user access, etc Y/N Provide details Is operator prevented from accessing the NT level and are normal Windows keyboard functions dis Y/N Explain how Are database and configuration back-up facilities provided Y/N Provide details Diagnostics: Auto-diagnostics Provide details of typical diagnostic facilities at the system, process and equipment levels eg. event logging, performance analysis, loop optimisation facilities, asset management information, etc Is a Sequence-of-Events facility available - state best resolution time Y/N Essential for logging trip sequences and other high speed digital events Comments Response Item