Cable monitoring module for use in safety circuits. The module enables the detection of wire breaks and short circuits between IOA and I/O cards when using simple switching contacts. To do so, a 7.5 kΩ resistance connected in series to the measuring signal and a 15 kΩ resistor is also connected in parallel. The module is installed on a corresponding VIP I/O-Marshalling base element by means of plug-in contact. Installation in zone 2, “ec” type of protection is permitted.
IOA LM-DI/R/RUSIO/EX
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Monitoring block
1048209
Cable monitoring module for VIP I/O marshalling base elements. Enables cable fault monitoring when using standard switching contacts in safety applications. Both wire breaks and short circuits can be detected.
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