GE F650 - Page 425

7-56 F650 Digital Bay Controller GEK-106310AB
7.2 IEC 61850 PROFILE FOR F650 7 IEC 61850 PROTOCOL
7
5 PIXIT for Generic substation events model
GOOSE
Description Value / Clarification
Note about internal variable “Remote Device” and
GOOSE validity checks
For each incomming GOOSE in the device there is an
associated internal variable called “Remote Device”. This
variable can have value ONLINE or OFFLINE.
Value ONLINE means that the incomming GOOSE
messages from the configured sender have been
positively validated by MAC destination, gocbRef, datSet
and goID.
Value OFFLINE means that there are no GOOSE
messages from configured sender or that incomming
GOOSE messages from this sender have been
invalidated by MAC destination or gocbRef or datSet or
goID.
The variable “Remote Device” can have value ONLINE (it
has been validated by MAC destination, gocbRef, datSet
and goID) but if the GOOSE message has been
invalidated by confRev or ndsCom or numDatSetEntries
or allData or if the order of data set elements is not correct
then the incomming data from GOOSE message will be
ignored.
What elements of a subscribed GOOSE header are
checked to decide the message is valid and the allData
values are accepted? If yes, describe the conditions.
N source MAC address
Y destination MAC address (Should be multicast, if it is not
multicast the status of the internal variable “Remote
Device” goes to OFFLINE)
N VLAN id
N VLAN priority
Y Ethertype = 0x88B8
N APPID
Y gocbRef (should match setting, if not the status of the
internal variable “Remote Device” goes to OFFLINE.)
N timeAllowedtoLive
Y datSet (should match setting, if not the status of the
internal variable “Remote Device” goes to OFFLINE)
Y goID (should match setting, if not the status of then
internal variable “Remote Device” goes to OFFLINE)
N t
N stNum
N sqNum
N test
Y confRev (should match setting, if not the status of the
internal variable “Remote Device” is not affected but the
incomming data from GOOSE message is ignored)
Y ndsCom (should have value FALSE, if it has value
TRUE the status of the internal variable “Remote Device”
is not affected but the incomming data from GOOSE
message is ignored)
Y numDatSetEntries (should match expected number of
data set entries, if not the status of the internal variable
“Remote Device” is not affected but the incomming data
from GOOSE message is ignored)
Y allData (should match expected data set, if not the
status of the internal variable “Remote Device” is not
affected but the incomming data from GOOSE message is
ignored)
What is the behaviour when one subscribed GOOSE
message isn’t received or syntactically incorrect (missing
GOOSE)
A single “missing” or syntactically incorrect GOOSE
message is ignored.
What is the behaviour when one subscribed GOOSE
message exceeds the previous time Allowed to Live (TAL)
A single late GOOSE message does change the status of
the internal variable “Remote Device” to OFFLINE.
What is the behaviour when a subscribed GOOSE
message is out-of-order
Sequence number is ignored the message will be
accepted.
What is the behaviour when a subscribed GOOSE
message is duplicated
N Sequence number is ignored the message will be
accepted.