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I am an resident Engineer working in an shiplift industry we are using hoist system in which loadcell connected the loadcell is communicating with Siemens s7-400 PLC through Analog Input (4 to 20 m amps, Siemens s7 331-7NF00-0AB0).
Problem:
we are using remote IOs in which Load cell communicating with Analog input. problem is there is sudden change in load but physically there is no load on hoist which Scada shows. We have measured mamps both the load cell and AI module all are with in the limit.
so please help on this issue to sort the problem.
Problem:
we are using remote IOs in which Load cell communicating with Analog input. problem is there is sudden change in load but physically there is no load on hoist which Scada shows. We have measured mamps both the load cell and AI module all are with in the limit.
so please help on this issue to sort the problem.