7/6/2008 2:45 PM | |
Posts: 86 Rating: (1) |
Hi All, Please i want to know the difference between DCS based control system and PLC Instrumented Protective System (IPS) |
7/7/2008 5:44 AM | |
Joined: 9/27/2006 Last visit: 9/24/2024 Posts: 12282 Rating: (2685) |
Hello Euler; Basically I don't see why you are opposing DCS and PLC/IPS. IPS (Instrumented Protective Systems)is a concept for application of safety standards and regulations in the process industry, based on standards IEC61508 and IEC 61511, as I understand it. It relies on principles of traceable documentation for all instrumentation, testing at commissioning and regular intervals atfter that, repair and replacement management, maintenance recording and analysis of failures. Common sense stuff, really, in a stricter presentation. It can be implemented whatever the control system chosen for a process. Example: the following documnent from ABB, vendors of both PLCs and DCS systems: http://library.abb.com/global/scot/scot288.nsf/veritydisplay/ddd6fe4019d79d90c12571a4003b594c/$File/ERTC%20Conf%20Barcelona%20Oct%202003%20V2.pdf Hope this helps, Daniel Chartier |
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