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User Manual
GFK-2849A
CANCEL operation on PPV
If the user has to write a value to a data attribute, the following steps need to be performed
in logic:
1.
2.
3.
4.
Table for Add Cause
The value given by the Result variable is defined in the following table.
Add Cause
Value
1
2
3
4
5
6
7
8
9
10
System Operation
Step1: Provide a transition from "0" to "1" in the PPV with extension (†.CANCELCmd)
to trigger the transfer of written value to the IED.
e.g. S4_SR350_DevSR350.XCBR1_Pos.Cancel_ctlVal_CO.CANCELCmd
Step2: Check the PPV with extension (†.CANCELSts) for status code.
e.g. S4_SR350_DevSR350.XCBR1_Pos.Cancel_ctlVal_CO.CANCELSts
[CANCELSts returns code:
0: BUSY
1: DONE
2: ERROR ]
Step3: Check the PPV with extension (†.CANCELRslt) for success (1).
e.g S4_SR350_DevSR350.XCBR1_Pos.Cancel_ctlVal_CO.CANCELRslt
[ CANCELRslt > 0, it returns IEC 61850 AddCause
CANCELRslt < 0 internal error code:
-1, wrong parameter
-2, driver not loaded
-3, write command cannot be issued (e.g. not valid server)]
Refer table - Table for Add Cause
Step5: check that the written value has been updated in the PPV with extension
(†.ReadVal)
e.g. S4_SR350_DevSR350.XCBR1_Pos.Cancel_ctlVal_CO.ReadVal
State
state_not_supported
state_blocked_by_switching_hierarchy
state_select_failed
state_invalid_position
state_position_reached
state_parameter_change_in_execution
state_step_limit
state_blocked_by_mode
state_blocked_by_process
state_blocked_by_interlocking
Chapter 4
Oct 2019
94
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