Weidmüller UR20-4COM-IO-LINK - 9 Diagnostics and troubleshooting; 9.3 LED indicators and troubleshooting

9 Diagnosticsandtroubleshooting | LED indicators and troubleshooting
56 2547720000/03/09.2019Manual Communication module UR20-4COM-IO-LINK
9.3 LED indicators and troubleshooting
LED Status Recommended action
Status LED Red: – Error in the supply voltage at input current path
– Communication error on the system bus
– Configuration error IO-Link
– There is a new diagnostic message
– Check the supply voltage
– Check that the module has been snapped into place
properly
– Check the configuration
Channel LED 1.1...4.1 Yellow: – Status COM 1...COM4
–
1.2...4.2 Red: – Fehler IO-Link port1...IO-Link port4 – Check the wiring
– Check the configuration
1.4...4.4 Yellow: – Status DI1...DI4
–