Open standards energize powerplant controls Open standards enable plant owners to select prepackaged automation islands that reduce installation cost and schedule, while still providing a comprehensive, coordinated control system. Currently, OPC is the leading open standard

The distributed control system of most power plants typically require a relatively low number of hardwired input/output points - sometimes fewer than 1000 - and its principal role is simply to integrate the various control subsystems. Unfortunately, the schedule and cost benefits often are restricte...

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Bibliographic Details
Published in:Power 2001-07, Vol.145 (4), p.52-56
Main Authors: Brownlee, William D, Lemanowicz, James M, Automation, ABB, Swanekamp, Robert
Format: Magazinearticle
Language:English
Subjects:
Automation
Cable television industry
Compatible hardware
Control systems
Distributed control systems
Distributed network protocols
Dynamic data exchange
Electric power plants
Ethernet
Internet Protocol
Interoperability
Network switching
OEM
Open standards
Open systems
Process controls
Turbines
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Summary:The distributed control system of most power plants typically require a relatively low number of hardwired input/output points - sometimes fewer than 1000 - and its principal role is simply to integrate the various control subsystems. Unfortunately, the schedule and cost benefits often are restricted because the OEMs use closed platform architectures and require custom interfaces for each subsystem. Substantial improvements are possible if the OEMs supplying prepackaged instrumentation and controls subsystems systems would design for greater interoperability and adopt open communications standards. Several open standards are available, intended for different applications within an automation and control system. These include: 1. RS-232/RS-485 serial Modbus, 2. ethernet and TCP/IP, 3. controlNet, 4. dynamic data exchange, and 5. OLE for process control.
ISSN:0032-5929
1936-7791