Toshiba GR200 Series - 3.6.2 Cancel logic in SBO mode; (i) Receiving “Cancel” from the remote-end; (ii) Input signal required mapping

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 579 -
3.6.2 Cancel logic in SBO mode
In the SBO mode the reception of a cancel command is possible when the cancel conditions are
satisfied. Accordingly, the function can discard the select command; finally, the operation
returns to the initial stage (i.e., “Wait for a command”.)
(i) Receiving “Cancel” from the remote-end
Figure 3.6-4 depicts the cancel command procedure for a cancel command initiated from the
remote-end.
Signal reception in
IEC61850
Cancel by the remote-end
Do nothing
Cancel
decision
Success
Failed
Cancel logic
Wait for a command
Operate logic
Operate command
Operate logic
Command Reset from the
remote-end
Select logic
Wait for a next command
Figure 3.6-4 Outline of ‘cancel’ command from the remote-end
(ii) Input signal required mapping
Figure 3.6-6 depicts the cancel logic when a “Cancel command (Remote-Cancel)” signal is
applied to the LEDR function. The input-point “LEDR01_CONTROL_REQ” is the same the
same as that for the signal as shown in Figure 3.6-2.
LEDR function (Function ID: 528001)
LEDR01_CONTROL_REQ
Cancel command
Command “Cancel”
528001 7007016D08
510001 7001016D08
Input
Output
&
&
Successes to cancel
Operation Failed
“Do nothing”
To “Wait for a command”
Unmatched condition
detected†
Cancel logic in LEDR
Figure 3.6-5 ‘Cancel’ from the remote-end
†Note: The criteria “unmatched conditions” are determined when the “Test-bit status” in
a command is not identical to the “IED test status”.