GE Power Management
ALPS Advanced Line Protection System
B-5
APPENDIX B
B.2 REGISTER MAPS
B
B.2.2 MODBUS MEMORY MAP
Table B–4: MODBUS MEMORY MAP (Sheet 1 of 10)
ALPS
REGISTER
CONTENTS
TYPE
FORMAT
NO. OF
REGS.
RANGE
UNITS
DEFAULT
1 A
5 A
1 A
5 A
FIXED VALUE REGISTERS
0002
Model Number
RO
ASCII
8
-
-
-
-
0010
PROM Version
RO
ASCII
6
-
-
-
-
0016
Serial Number
RO
ASCII
8
-
-
-
-
0024
Unit ID
RO
Unsigned Int
1
-
-
-
-
0025
Reserved
RO
-
-
-
-
-
-
-
↓
↓
-
-
-
-
-
-
-
-
0499
Reserved
RO
-
-
-
-
-
-
-
COIL COMMAND REGISTERS
0500
Operate Breaker 1
WO
bitmask
1
0000=Force OFF
FF00=force ON
-
-
-
0501
Operate Breaker 2
WO
bitmask
1
0000=Force OFF
FF00=force ON
-
-
-
0502
Enable/Disable Outputs
WO
F26
1
0, 1
-
-
-
0503
OSC Trigger
WO
bitmask
1
FF00=trigger oscillography
-
-
-
0504
Cancel Report
WO
bitmask
1
FF00=cancel active report
-
-
-
0505
Channel Test
WO
bitmask
1
0000=Start Test
FF00=Stop Test
-
-
-
0506
Reserved
RO
-
-
-
-
-
-
-
↓
↓
-
-
-
-
-
-
-
-
0999
Reserved
RO
-
-
-
-
-
-
-
DYNAMIC VALUE REGISTERS
1000
Date
RO
F1
2
MM/DD/YY
-
-
1002
Time
RO
F2
2
HH:MM:sec.ms
-
-
1004
Va RMS
RO
Float
2
V
1006
Vb RMS
RO
Float
2
V
1008
Vc RMS
RO
Float
2
V
1010
Ia RMS
RO
Float
2
A
1012
Ib RMS
RO
Float
2
A
1014
Ic RMS
RO
Float
2
A
1016
In RMS
RO
Float
2
A
1018
Va
RO
Float
2
V
1020
Angle Va
RO
Integer
1
–180 to 180
deg
1021
Vb
RO
Float
2
V
1023
Angle Vb
RO
Integer
1
–180 to 180
deg
1024
Vc
RO
Float
2
V
1026
Angle Vc
RO
Integer
1
–180 to 180
deg
1027
Ia
RO
Float
2
A
1029
Angle Ia
RO
Integer
1
–180 to 180
deg
1030
Ib
RO
Float
2
A
1032
Angle Ib
RO
Integer
1
–180 to 180
deg
1033
Ic
RO
Float
2
A
1035
Angle Ic
RO
Integer
1
–180 to 180
deg
1036
In
RO
Float
2
A
1, 2, 3, 4, 5, 6, 7, 8
See page B–14 for footnote explanations.