The voltage reads 10V when the 24V TOPWORX proximity switch is not in the closed state, which causes the PLC to think it is in the closed position – what is the problem?
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As the title suggests, I need experts to help solve this problem; waiting online
Then you need to check the technical specifications of this proximity switch – what is the voltage at which the proximity switch gets triggered?
During on-site debugging, everything else is normal; 0V is available, but 24V is not. There’s only one problem; I don’t know where to start to fix it
If we refer to other good proximity switches, it’s very likely that there is a problem with this one; try replacing it, or try installing a good proximity switch from the field on this device
Is there a loose connection somewhere? Or there is a resistance in the circuit that causes voltage division
Typically, the DI of a PLC can only be connected to mechanical switches, not proximity switches. So you need to install a DI safety barrier-type conversion module to convert the proximity switch signal into a mechanical switch signal
Learned it, thanks for the discussion: handshake