Modbus Memory Map - GE MDP Instruction Manual

GEK-100682D
Table 7–1: MODBUS MEMORY MAP (Sheet 1 of 4)
REGISTER CONTENTS
FIXED VALUE INPUT REGISTERS (READ HOLDING REGISTERS)
0000 Product ID
0001 Not assigned
0002 Commnet Address
0003 Modbus Address
0004 COC Software Version
0006 Model
0007 Ground Settings Scale
0008 Product Revision
0010 MDP Software Revision
DYNAMIC VALUE INPUT REGISTERS
1000 Number of pending events
1001 LED Status
1002 Hardware Status
1003 Phase A current
1005 Phase B current
1007 Phase C current
1009 Ground current
GE Power Management
Courtesy of NationalSwitchgear.com
RANGE TYPE
R/W
13h RO
0 RO
N/A RO
N/A RO
N/A RO Float4 digit BCD with decimal between
N/A RO
00h to 03h
0.00 to 99.99 RO 4 digit BCD with decimal between 2nd
0.00 to 99.99 RO
0 to 24 RO
0000h to 00FFh RO A bit set to 1 indicates the correspond-
b0: Ready, b1: Phase A, b2: Phase B,
b3: Phase C, b4: Ground, b5: TOC Trip,
0000 to 008Fh RO
(1 = Settings changed but unentered),
0 to 10 A (5 A relay) RO
0 to 2 A (1 A relay)
0 to 10 A (5 A relay) RO
0 to 2 A (1 A relay)
0 to 10 A (5 A relay) RO
0 to 2 A (1 A relay)
0 to 3 A (5 A relay) RO
0 to 0.7 A (1 A relay)
MDP Digital Time Overcurrent Relay
7 MODBUS PROTOCOL

7.4 MODBUS MEMORY MAP

FORMAT CODE
Unsigned Integer
Unsigned Integer
Unsigned Integer
Unsigned Integer
2nd & 3rd digits
Unsigned Integer
00h:1 A; 01h: 5 A
Unsigned Integer
00h: Nominal, 01h: divide by 2
02h: Multiply by 3, 03h: Divide by 5
and 3rd digits
4 digit BCD with decimal between
2nd and 3rd digits
Integer
ing LED is ON
b6: IOC Trip, b7: Pickup
b0: Breaker Status
(1 = Open,0= Closed)
b1: External Input, Block Ground
(1 = Active)
b2: External Input, Block IOC
(1 = Active)
b3: Settings Status
0 = Settings Normal)
b4: Undefined, b5: Undefined
b6: Undefined
b7: Relay Status
(1= Fatal Error, 0=OK)
Float
Float
Float
Float
BYTES COMMNET
COMMAND
1 80/01/01h
1
1
1
2 80/74/14h
1 80/02/00h
1 80/02/00h
2 80/01/05-06h
2 80/01/02-03h
1
1 80/74/00h
1 80/74/01h
7
2 80/74/01-02h
2 80/74/03-04h
2 80/74/05-06h
2 80/74/07-08h
7-
3