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The issue with the interlock valve tag number

2015-10-31View Original

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On the interlock valve, in addition to an interlock tag number of z-401, there are also G-001 and G-002. What do the last two represent? Please explain.
Reply #22015-10-31
It’s probably a response from a valve position switch.
Reply #32015-10-31
The latter two indicate the valve position status

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