Sel 551 - Page 251

G.15
Date Code 20110408 Instruction Manual SEL-551 Relay
Modbus RTU Communications Protocol
Modbus RTU Communications Protocol
003D +5_REG power
supply status mes-
sage
b
0 = OK,
1 = Warn,
2 = Fail
–––––
003E –5_REG power
supply value
c
V –600 0 1 0.01
003F –5_REG power
supply status
message
b
0 = OK,
1 = Warn,
2 = Fail
–––––
0040 +10_ps power supply
value
b
V 0 1500 1 0.01
0041 +10_ps power supply
status message
b
0 = OK,
1 = Warn,
2 = Fail
–––––
0042 –10_ps power supply
value
c
V –1500 0 1 0.01
0043 –10_ps power supply
status message
b
0 = OK,
1 = Warn,
2 = Fail
–––––
0044 VBAT power supply
value
b
V 0 500 1 0.01
0045 VBAT power supply
status message
b
0 = OK,
1 = Warn,
2 = Fail
–––––
0046 TEMP in degrees
Celsius
c
°C –100 100 1 1
0047 Temperature status
b
0 = OK,
1 = Warn,
2 = Fail
–––––
0048 RAM status
b
0 = OK,
2 = Fail
–––––
0049 ROM status
b
0 = OK,
2 = Fail
–––––
004A CR_RAM status
b
0 = OK,
2 = Fail
–––––
004B EEPROM status
b
0 = OK,
2 = Fail
–––––
Table G.18 Modbus Map (Sheet 3 of 15)
Address
(Hex)
Field Units
Range
Scale
Factor
Low High Step