Applies To:
  • CitectSCADA 7.0
  • CitectHMI 7.0

Summary:

IOServer shuts down when one of the connected IODevices is powered down for maintenance, Standby IOServer gets activated and takes control (if redundancy is present). Now if another IO Device is shutdown, Standy IOServer also goes offline and even though the citect is running no data is being transmitted.  


Solution:

This issue is caused because of the ABTCP driver and a fix for it is present on the latest driver version (v2.06.06.001). 


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