Iec 61850 Logical Nodes - GE 350 Communications Manual

CHAPTER 4: SR3 IEC61850 GOOSE

IEC 61850 Logical Nodes

350 FEEDER 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 350 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 350 invokes a logic (block / control) function when its corresponding GOOSE remote
input is asserted.
In the 350 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.
The SR350 relay supports the logical nodes as indicated in the following table:
L: System Logical Nodes
LPHD (Physical device information)
LLN0 (Logical node zero)
P: Logical Nodes for protection functions
PIOC (Instantaneous overcurrent)
PTOC (Time overcurrent)
PTOF (OverFrequency)
PTOV (Overvoltage)
PTUV (Undervoltage)
PTUF (UnderFrequency)
PTTR (Thermal Overload)
R: Logical Nodes for protection related functions
RDIR (Directional Element)
RREC (Autoreclosing)
G: Logical Nodes for generic references
GGIO (Generic process I/O)
M: Logical Nodes for metering and measurement
MMXU (Measurement)
MSQI (Sequence and imbalance)
X: Logical Nodes for switchgear
XCBR (Circuit breaker)
IEC 61850 LOGICAL NODES
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