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Output signal to BO
The DPSY01 function can issue a “Success to cancel” signal at the monitoring point
“DPSY01_CC_SS”, when the DPSY01 function has determined that the “Remote-cancel” signal
is true. Another “Operation failed” signal is issued at monitoring point DPSY01_CC_FS” “if
the DPSY01 function is able to determine that the “Remote-cancel” signal is not true.
(ii) Receiving “Cancel” from the local-end
Figure 4.2-16 outlines the reception of the cancel command from the local-end.
Cancel from the local-end
Selecting Open from the remote-end
Selecting Closing from the remote-end
Selecting Open from the local-end
Selecting Closing from the local-end
Selecting Closing by the PLC function
Selecting Open by the PLC function
Cancel from the remote end
Figure 4.2-16 Outline of ‘cancel’ command from the local-end
Input signal generated at the local-end
Figure 4.2-17 depicts the cancel logic when a “Cancel command (Local-cancel)” signal is applied
to the DPSY01 function. The signal is generated when the “Cancel” key is pressed on the IED
front panel; the user is not required to take account of mapping. When the logic receives the
“Local-cancel” signal, the logic is able to output a result signal, provided that the “cancel
condition” checking is satisfied.
DPSY01 function (Function ID: 511001)
“DPSY01_ CC_SS”
(511001 8602011E95)
“DPSY01_CC_FS”
(511001 8702011E96)
Figure 4.2-17 ‘Cancel’ from the front panel