IEC16000072 V1 EN-US
Figure 317: Configuration with XLNPROXY and GOOSEXLNRCV where only
the mandatory data in the IEC 61850 modelling is used
All the information from the XLNPROXY to the SCSWI about command
following status, causes for failed command and selection status is transferred in
the output XPOS. The other outputs may be used by other functions in the same
way as the corresponding outputs of the SXCBR and SXSWI function.
When a command has been issued from the connected SCSWI function, the
XLNPROXY function awaits the response on it from the represented switch
through the inputs POSVAL and OPOK. While waiting for the switch to start
moving, it checks if the switch is blocked for the operation. When the switch has
started moving and no blocking condition has been detected, XLNPROXY issues a
response to the SCSWI function that the command has started. If OPOK is used,
this response is given when XLNPROXY receives the signal.
If no movement of the switch is registered within the limit tStartMove, the
command is considered failed, and the cause of the failure is evaluated. In the
evaluation, the function checks if the state of the represented switch is indicating
that the command is blocked in any way during the command, and gives the
appropriate cause to the SCSWI function. This cause is also shown on the output
L_CAUSE as indicated in the following table:
Section 15 1MRK 506 369-UEN B
Control
648 Line distance protection REL670 2.2 IEC
Application manual
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