Control During Operation
7-58 7SA6 Manual
C53000-G1176-C133-1
7.4.9 Other Commands
The device is equipped with a serial interface for connection to the System (SCADA)
interface. From there, the device can receive standardized commands (according to
the supported protocol) and transmit them to the respective switching devices, or
activate internal functions, e.g. block inputs/outputs or set tags (manual overwrite), or
&RQILJ(UURU Refusal because no relay is assigned to this object, or the relay
jumpered in the device does not exist
&RQWURO%ORFNHG Refusal because an output block is set
6\VWHP2YHUORDG" Refusal because a relay to be controlled is already active (e.g., by
another command)
6:WRQHUURU" Refusal because another relay is already controlled
6\VWHP2YHUORDG No more free timers available
8SSHU6HWW/LPLW For transformer LTC step commands, highest level already
reached
/RZHU6HWW/LPLW For transformer LTC step commands, lowest level already reached
([HFXWLQJ&RQWURO New command refused because a command is already in process-
ing
&RPPDQG7LPHRXW Feedback indication missing
%LQDU\,QS,JQRUHG Recording block set
&KDWWHU$FWLYH Flutter block is active
6HWWLQJDFWLYH Refusal because parameter loading process is running
6WDWXV&KDQJH2. Status FRPPDQGH[HFXWHG
6WDWXV&KDQJH)DLO Status command cannot be executed
&KDQJH2. Marking executed
&KDQJH)DLOHG Marking cannot be executed
&KHFNLQJ,QWHUORFN Command is sent to the central unit to check system interlocking
6HWWLQJVDUH2. Parameter change was correctly accepted
7LPH/LPLW([SLUHG Parameter change was interrupted because time expired
7HUPLQDWHG3LFNXS Parameter change interrupted because a fault became active dur-
ing parameterization
5HVWRUH3DUDPHWHUV As a reaction to a fault recognized during parameterization, the last
active parameter set is activated again
3OHDVH:DLW« Initiated process running and requires some time
&KHFNLQJ6HWWLQJV The changed parameters are tested before acceptance
6ZJU)HHGEDFN2. Return message: destination reached
6ZJU)HHGEDFN)DLO Return message: destination not reached
&KDQJH5HMHFWHG Parameter change was rejected (e.g., because time expired, or ab-
normal occurrence during parameterization)
&RQWURO2. Positive conclusion message for commands
9DOXH,QFRUUHFW Plausibility error in command
Table 7-5 Possible Control Messages
Message Text Message Cause