Troubleshooting steps
Check network connections, verify device communication, reset network
SCADA System Alarms
WinCC W18 – Communication fault
Communication fault
Details
WinCC W18 error on SCADA indicates communication fault. Network communication error, device communication failure. Check network connections, verify device communication, reset network.
Error typecommunication
MeaningCommunication fault
Typical causesNetwork communication error, device communication failure
SolutionsCheck network connections, verify device communication, reset network
SeverityHigh
Catalog references
Where this appears
WinCCW18
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Common questions
What does W18 mean on WinCC SCADA?
W18 on WinCC SCADA indicates communication fault. Network communication error, device communication failure.
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