GE 345

CHAPTER 1: COMMUNICATIONS GUIDE MODBUS MEMORY MAP
345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE 1–129
Example: 1234.56 stored as 123456
i.e. 1st word: 0001 hex, 2nd word: E240 hex
F12 signed 32 bits 2’s COMPLEMENT SIGNED LONG VALUE
1st 16 bits High Order Word of Long Value
2nd 16 bits Low Order Word of Long Value
Example: -123456 stored as -123456
i.e. 1st word: FFFE hex, 2nd word: 1DC0 hex
F13 signed 32 bits 2’s COMPLEMENT SIGNED LONG VALUE, 1
DECIMAL PLACE
1st 16 bits High Order Word of Long Value
2nd 16 bits Low Order Word of Long Value
Example: -12345.6 stored as -123456
i.e. 1st word: FFFE hex, 2nd word: 1DC0 hex
F14 signed 32 bits 2’s COMPLEMENT SIGNED LONG VALUE, 2
DECIMAL PLACES
1st 16 bits High Order Word of Long Value
2nd 16 bits Low Order Word of Long Value
Example: -1234.56 stored as -123456
i.e. 1st word: FFFE hex, 2nd word: 1DC0 hex
F15 unsigned 16 bits HARDWARE REVISION
0Prototype
1A
2B
3C
4D
5E
6F
7G
8H
9I
10 J
11 K
12 L
13 M
14 N
15 O
16 P
17 Q
18 R
19 S
20 T
21 U
22 V
23 W
24 X
25 Y
26 Z
Code Type Definition