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4.8.3 Operate logic for SBO/DIR modes
Once the operation of the select logic is complete, the operate logic start to control the device.
(i) Receiving “Operate command On” from the remote-end
Figure 4.8-19 depicts the reception of the operate command ‘On’ from the remote-end.
Signal reception in
IEC61850
Operate command On from the remote-end
Operate command On from the local-end
Operate command Off from the local-end
Operate command Off from the remote-end
Operate command On by the PLC function
Operate command Off by the PLC function
Select command Off from the remote-end
Select command On from the remote-end
Select command Off from the local-end
Select command On from the local-end
Select command On by the PLC function
Select command Off by the PLC function
Figure 4.8-19 Outline of Operate command ‘On’
Mapping required for Input point
Figure 4.8-20 illustrates the operate logic when an “Operate command On (Remote-ON-
Control)” signal is applied to the DPOS01 function. The input-point “DEV01_CONTROL_REQ”
is used for the reception of the “Operate command On (Remote-On-Control)”.
Output signal to BO
The DPOS01 function, in Figure 4.8-20, can issue an “Operate” signal at the output point
“DPOS01_OEX_BO”, when the DPOS01 function determines that the received signal “Remote-
On-Control” is true.