ryangriggs
Lifetime Supporting Member
Hello. I'm dealing with a 1769-IF4 module with the "OK" light OFF. Data is not updating in RSLogix5000 - no change when inputs are connected or removed. (we're using 4-20mA in % range and verified the 4-20mA inputs are live). There are more modules past this one on the bus and they are working.
However, in RSLogix 5000, there are no faults in the module properties screen and no PLC major faults and only some unrelated overflow minor faults.
There is a Fault register associated with the module, but the manual doesn't seem to describe this register, and I'm not sure how to read it. Some of the bits are set, but I'm not sure how to determine their meaning.
Is the module actually bad? or does the system just need to be power-cycled? Why aren't the faults being reported?
Any suggestions welcomed.
Thanks
However, in RSLogix 5000, there are no faults in the module properties screen and no PLC major faults and only some unrelated overflow minor faults.
There is a Fault register associated with the module, but the manual doesn't seem to describe this register, and I'm not sure how to read it. Some of the bits are set, but I'm not sure how to determine their meaning.
Is the module actually bad? or does the system just need to be power-cycled? Why aren't the faults being reported?
Any suggestions welcomed.
Thanks