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CHAPTER 1: COMMUNICATIONS GUIDE
345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
The following format indicates the source of the GOOSE message:
The string name of each remote input is maintained in a set of MODBUS registers, where
each string name consumes up to 16 MODBUS registers.
Each GOOSE remote input can be mapped to one of the following functions:
•
protection element block (all protection elements that have a single or multiple block
setting)
•
group setting change
•
user assignable LED
•
digital output
The 345 records changes in GOOSE remote inputs in the Event Log.
The time recorded in a GOOSE remote input's event log entry, is the time at which the
change in the input's state is detected.
The 345 invokes a logic (block / control) function when its corresponding GOOSE remote
input is asserted.
In the 345 there are many different settings where it is possible to select between a
Contact Input (1 to 8 ), a Virtual Input (1 to 32 ) or a Logic Element (1 to 8 ). In all of these
settings it is also possible to select Remote Input (1-32 ) if the GOOSE feature is enabled on
the relay.
ETHERNET INTERFACE
1–71
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