I/O MODULE NOT FOUND
UnclassifiedGeneral
What This Code Means
Service Required LED flashes; System does not detect I/O module at expected address
Possible Causes
- •Number of installed I/O modules does not match setup program
- •I/O module address DIP switches set incorrectly
- •I/O modules not connected
- •I/O module not receiving power or communicating with controller
Suggested Actions
- 1Check that the number of I/O modules installed matches the number expected by the setup program
- 2Check that the I/O modules are connected and the address DIP switches are set correctly
- 3Check the diagnostic LED to verify that the module is receiving power and communicating with the controller
Related Rehlko Fault Codes
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