
CHAPTER 1: COMMUNICATIONS GUIDE
MODBUS MEMORY MAP
345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
1–167
2
Latched Alarm
3
Trip
FC198
unsigned 16 bits
Output Relay Operation
0x0004
Op Output Relay 3
0x0008
Op Output Relay 4
0x0010
Op Output Relay 5
0x0020
Op Output Relay 6
FC199
unsigned 16 bits
Output Relay Type
0
Self-Reset
1
Latched
FC200
unsigned 32 bits
Block Status 1
0x00000001
Any Block
0x00000002
Thermal Block
0x00000040
Rly#1 Trip BLK
0x00000080
Rly#2 Cls BLK
FC201
unsigned 32 bits
Block Status 2
0x00000004
Group Change Block
FC202
unsigned 32 bits
Block Status 3
0x00000001
Phase IOC 1 Block
0x00000002
Neutral IOC1 Block
0x00000004
Ground IOC 1 Block
0x00000008
Phase TOC Block
0x00000010
Neutral TOC Block
0x00000020
Ground TOC Block
0x00000040
Phase IOC 2 Block
0x00000080
Neutral IOC2 Block
0x00000100
Ground IOC 2 Block
0x00000200
Ph TOC2 Block
0x00000400
Neutral TOC2 Block
0x00000800
Ground TOC2 Block
0x00001000
SGnd TOC
0x02000000
SGnd IOC 1 Block
0x04000000
SGnd IOC 2 Block
0x10000000
Diff 87P Block
0x20000000
Diff 87REF 1 Block
0x40000000
Diff 87REF 2 Block
0x80000000
Inst 50/87P Block
FC203
unsigned 32 bits
Block Status 4
0x00000001
NSeq TOC1 Block
0x00000002
NSeq TOC2 Block
0x00000080
SGnd TOC2 Block
0x00001000
Trip BKR1 Block
0x00002000
Trip BKR2 Block
0x00004000
2nd Hmnc Diff Blk
0x00008000
5th Hmnc Diff Blk
FC204A
unsigned 16 bits
Contact Input Bit Field Values (Subset A)
0x0000
Disabled
Code
Type
Definition