Control logix CPU connected to Flex IO via Controlnet
The Flex io consists of 5 modules
IB10XOB6/A
IE8/B
IE4XOE2/B
IR8
IR8
The 2 IR8 modules get very hot and all inputs go to full scale. regardless of having a field connection or not.
The Module OK led show solid green (functioning normal)
When connected to the CPU via RSlogix the IO tree shows no issues.
Replacing the module allows the system to continue to run
This is a older installation so has been operation for some time (Years) there are 2 other Flex IO drops configured the same these are not having the same issue.
I have taken the faulted modules and installed them in a test rack and get the same results.
As this is a recurring issue we would like to understand what could cause these issues.
The Flex io consists of 5 modules
IB10XOB6/A
IE8/B
IE4XOE2/B
IR8
IR8
The 2 IR8 modules get very hot and all inputs go to full scale. regardless of having a field connection or not.
The Module OK led show solid green (functioning normal)
When connected to the CPU via RSlogix the IO tree shows no issues.
Replacing the module allows the system to continue to run
This is a older installation so has been operation for some time (Years) there are 2 other Flex IO drops configured the same these are not having the same issue.
I have taken the faulted modules and installed them in a test rack and get the same results.
As this is a recurring issue we would like to understand what could cause these issues.