PLC State Management
Original instructions
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IEC 61850 Server
The BMENOP0300 module stops detecting events (report/GOOSE) when the PLC is stopped. However, any report could be triggered by an animation table. In this case, the GOOSE publishing continues with the last information. Integrity reports continue. The BMENOP0300 does not update its value of GOOSE subscription into the PLC.
All the quality of the data object (DO) are invalid in the response to a read request from SCADA when the PLC stops. In addition, the BMENOP0300 module supports the management of the PhyHealth data object (DO) in the LPHD node of each logic device. When the PLC stops, the PhyHealth stVal is set to "warning" and returns to "OK" when the PLC again begins to run. When the PLC is stopped, the BMENOP0300 module denies all control operations.
IEC 61850 Client
When the PLC stops, the BMENOP0300 module does not update its value of GOOSE subscription into the PLC; it disconnects with the remote IEDs.
IEC 61850 Roles and Functions
Depending on the state of the PLC, the following functions are supported:
IEC 61850
Role/Function
PLC State
Run
Stop
Server:
  • buffered and unbuffered reporting
X
X
  • GOOSE
X
X
  • control commands
X
–
Client:
  • buffered and unbuffered reporting
X
–
  • GOOSE
X
–
  • control commands
X
–
X: supported
–: not supported