Error description 231-E023

Error message

E023 CC%2 Dynamic test ID=%4 aborted: Error in B channel: test ID=%5

Cause of error

Error during the dynamic test of the PLC periphery devices (PL, MB, UEC).
No expected switch from 1 to 0 of the test output TEST.B detected.
- Incorrect wiring of the TEST.B output.
- Short circuit of the TEST.B output
- Incorrect firmware version of the peripheral device

Error correction

- Check the software version.
- Check the wiring of the TEST.B output
- Run a software or firmware update
- Exchange the faulty device.
- Inform your service agency.