The plc unit has an error if there if the power led is on and the error led is also on. The plc has a fatal error if the power ked os on, the run mode led is off and the error led is on. You have to connect your programming software, cx one and use a cable- CQM1-CIF02, and check the plc program on what is causing the error/s.Good Day,
please help to resolve the issue of my boiler control where Omron Sysmac C200HX controller is showing ready light green and error light red, please suggest me a way forward to resolve the issue.