Toshiba GR 200 Series, Instruction Manual

Page: 496 / 1563

6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 475 -
3.7.3
Cancel logic for SBO mode
In the SBO control 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 3.7-8 depicts the cancel command procedure for a cancel command initiated from the
remote-end.
Signal reception
in IEC61850
Cancel from the remote-end
Do nothing
Cancel
decision
Success
Failed
Cancel logic
Wait for a command
Operate logic
Operate command
Operate logic
Select logics
Select command
Reset from the
remote-end
Wait for a next command
Figure 3.7-8 Outline of ‘cancel’ command from the remote-end
Input point required mapping
Figure 3.7-9 depicts the cancel logic when a “Cancel command (Remote-Cancel)” signal is
applied to the GCNT01 function. The input-point “GCNT01_CMM_REQ” is the same as that
for the signal “Select command Reset (Remote-Reset-Control)”.
Output signal to BO
The GCNT01 function can issue a “Success to cancel” signal at the monitoring point
“GCNT01_CC_SSCN”, when the GCNT01 function has determined that the signal “Remote-
cancel” is true. Another signal “Operation failed” is issued if the function is able to determine
that the signal “Remote-cancel” is not true.
GCNT01 function (Function ID: 540001)
“GCNT01_CC_SSCN”
(540001 840E011E95)
GCNT01_CMM_REQ
Cancel command
Command
“Remote-cancel”
540001 700E016D09
Input Output Cancel logic in GCNT01
&
&
Successes to cancel
Operation Failed
“Do nothing”
To
“Wait for a command”
Unmatched condition detected *1
Figure 3.7-9 ‘Cancel’ from the remote-end in GCNT01
1
Note: The criteria “unmatched conditions” are determined when the “Test-bit status” in