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345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
ETHERNET INTERFACE
CHAPTER 1: COMMUNICATIONS GUIDE
Figure 4: EnerVista SR3 GOOSE Rx Header
GOOSE receive
dataset structure
The format of the GOOSE messages that can be accepted by the firmware is stored in
MODBUS registers. The maximum total storage size for the 8 Rx GOOSE structure is 250
registers. This means that the number of elements per Rx GOOSE is unlimited provided that
the total size of all Rx structures doesn’t exceed the defined limit of 250 registers.
The User can configure the Datasets of his choice, and if he exceeds the 250 registers limit
when he tries to
SAVE
, the following message appears, saying that the selection of the user
has exceeded the limit of 250 registers and that anything beyond will be lost.
Clicking on
YES
will save Dataset items selection up to 250 registers and the others will be
lost. The screen then refreshes, reflecting the saved data. Clicking on
NO
will do nothing
and the user can make changes on the screen (shown below).
The RX GOOSE message data types that are handled by the software, are: