incorporated in the application with the status value, and it is not displayed in
Signal Matrix Tool.
5.4
Received GOOSE message handling
A GOOSE frame is not accepted if the Needs Commission bit is set. A frame with
the Test bit set is only accepted if the receiving IED is also in the test mode. The
Test bit is active in the sender if the IED is set to test mode.
See the technical manual for more information on the test mode.
The GOOSE frame is also not accepted if the ConfRev deviates from the one in the
configuration. These error situations can be noticed in the GSEGGIO1 diagnostic
counters.
The default GOOSE input value is 0 for the all data types. This value is used when
the subscribed GOOSE data is corrupted, or it is not received from the network and
the peer IED is considered to be in a time-out state.
If a peer device sends the data including the quality attribute, the receiver IED
input object is not updated according to the received status value if the data quality
is bad, questionable or blocked. The default value is also used in this case.
5.5
GOOSE supervision
5.5.1
Background sending
To ensure reliability and availability of the application, the GOOSE
communication must be supervised. Design the application so that it can handle
communication losses, for example, when a peer IED is not available or there are
communication time-outs.
If there are no GOOSE-related data changes, the 615 series IED resends the
message with a heartbeat cycle to enable the receiver to detect communication
losses. The heartbeat cycle is defined by modifying the
MaxTime
property on
GOOSE control block.
Every GOOSE frame has a TAL field which shows how long the frame is valid
until the next heartbeat frame. Other devices may have their own TAL values.
Nevertheless, all the TAL values under 1000 ms are rounded up to 1000 ms on the
receiving side.
1MRS757255 B
Section 5
GOOSE
Breaker Integrated Protection RBX615
37
Engineering Guide