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7 COMMUNICATIONS
7.4MODBUS MEMORY MAP
Table 7–5: 745 MEMORY MAP (Sheet 1 of 35)
GROUP
ADDR
(HEX)
Product ID (Addresses 0000 to 007F) - Read Only
PRODUCT ID
0000
0001
0002
0003
0004
0005
0006
000A
000C
↓
001F
Upgrade Options (Addresses 0020 to 002F) - Read / Write
MODIFY
0020
OPTIONS
0021
0022
↓
007F
Commands (Addresses 0080 to 00FF) - Read / Write
COMMANDS
0080
0081
0085
0089
↓
008F
VIRTUAL
0090
INPUTS
0091
0092
0093
0094
0095
0096
0097
0098
0099
009A
009B
009C
009D
009E
009F
00A0
↓
00EF
TIME/DATE
00F0
00F2
00F4
↓
00FF
GE Multilin
Courtesy of NationalSwitchgear.com
DESCRIPTION
GE Product Device Code
Hardware Revision
Software Revision
Version Number
Bootware Revision
Installed Options
Serial Number (4 registers)
Manufacture Date (2 registers)
Reserved
↓
Reserved
New Options
Modify Passcode
Reserved
↓
Reserved
Command Operation Code
Passcode Access (4 registers)
Change Passcode (4 registers)
Reserved
↓
Reserved
Virtual Input 1 Programmed State
Virtual Input 2 Programmed State
Virtual Input 3 Programmed State
Virtual Input 4 Programmed State
Virtual Input 5 Programmed State
Virtual Input 6 Programmed State
Virtual Input 7 Programmed State
Virtual Input 8 Programmed State
Virtual Input 9 Programmed State
Virtual Input 10 Programmed State
Virtual Input 11 Programmed State
Virtual Input 12 Programmed State
Virtual Input 13 Programmed State
Virtual Input 14 Programmed State
Virtual Input 15 Programmed State
Virtual Input 16 Programmed State
Reserved
↓
Reserved
Time (2 registers)
Date (2 registers)
Reserved
↓
Reserved
745 Transformer Management Relay
7.4 MODBUS MEMORY MAP
RANGE
STEP
UNITS
VALUE
---
---
---
---
---
---
---
---
---
000 to 999
001
---
000 to 999
001
---
---
---
---
---
---
---
---
---
---
↓
↓
↓
---
---
---
---
---
---
↓
↓
↓
---
---
---
---
---
---
---
---
---
↓
↓
↓
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
↓
↓
↓
---
---
---
---
---
---
↓
↓
↓
7.4.1 745 MEMORY MAP
FORMAT
FACTORY
CODE
DEFAULT
F1
33 = 745
F13
4 = D
F14
200
F1
000
F14
120
F15
---
F33
"A0000000"
F23
---
↓
↓
F15
---
F33
---
↓
↓
F19
---
F33
---
F33
---
↓
↓
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
F43
0
↓
↓
F22
---
F23
---
↓
↓
7-13
7
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