GE Multilin MM200 Communications Manual page 28

FORMAT CODES
2-20
Code Type
20
21
22
23
24
25
26
F17 32 bits
1st 16 bits
2nd 16 bits
Example: 123456 stored as 123456
i.e. 1st word: 0001 hex, 2nd word: E240 hex
F18 32 bits
1st byte
2nd byte
3rd and 4th byte
Example: Feb 20, 1995 stored as 34867142
i.e. 1st word: 0214, 2nd word 07CB
F19 32 bits
1st byte
2nd byte
3rd byte
4th byte
Example: 2:05pm stored as 235208704
i.e. 1st word: 0E05, 2nd word 0000
F20 32 bits
1st 16 bits
2nd 16 bits
Note: -1 means "Never"
F22 16 bits
MSB
LSB
Example: String 'AB' stored as 4142 hex
FC101 16 bits
0
1
2
3
4
FC105 16 bits
0
1
2
3
FC107 16 bits
0
CHAPTER 2: RS485 INTERFACE (MODBUS RTU)
Definition
T
U
V
W
X
Y
Z
UNSIGNED LONG VALUE, 3 DECIMAL PLACES
High Order Word of Long Value
Low Order Word of Long Value
DATE MM/DD/YYYY
Month 1 to 12
Day 1 to 31
Year 2000 to 2099
TIME HH:MM:SS:hh
Hundredths of seconds 0 to 99
Seconds 0 to 59
Minutes 0 to 59
Hours 0 to 23
2's COMPLEMENT SIGNED LONG VALUE
High Order Word of Long Value
Low Order Word of Long Value
TWO 8-BIT CHARACTERS PACKED INTO 16-BIT
UNSIGNED
First Character
Second Character
RS 485 Baud Rate
9600 baud
19200 baud
38400 baud
57600 baud
115200 baud
CT Type
None
1 A Secondary
5 A Secondary
Direct Connect
Supply Frequency
60
MM200 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE