6/22/2013 12:06 PM | |
Posts: 93 Rating:
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Dear KKDAS2012 , For analog input, there are protection devices available from different manufacturer. Selection depends upon many parameters like type of type of analog input of PLC module(current/voltege,2/4 wire signal),type of filed instrument analog outout, optical/galvanic isolation, incase 4-wire signal supply of field instruments, etc. For analog output, generally there is only current type if signal . so there are not much complex options available. I would sujjest to visit siemens process instrumentation web side to find the available option for the same, as there are convinient options available. For digital input/output,as a cost effective option relay cn be use between field and PLC module for isolation. However isolators like analog ones are also available for digital signals. Hope to have clear anser of your question. |
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6/22/2013 1:08 PM | |
Posts: 559 Rating:
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Also you can use Fuse terminals at the DI for protections. |
7/1/2013 11:32 AM | |
Joined: 3/18/2008 Last visit: 12/8/2023 Posts: 1750 Rating:
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Hello, you can also refer similar discussion here. I/O Device Protection |
VANDE MATARAM..... |
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