A
After power failure on plant DCS (TDC 3000 Honeywell) power switched to UPS (Backup). But Universal station No. 1 showed maintenance message:
8711 US 01 TEST SUSPECT OPR IO SUBSYSTEM
Please can someone help me to evaluate this message?
8711 US 01 TEST SUSPECT OPR IO SUBSYSTEM
Please can someone help me to evaluate this message?