Sel 551 - Page 256

G.20
SEL-551 Relay Instruction Manual Date Code 20110408
Modbus RTU Communications Protocol
Modbus RTU Communications Protocol
Bit 15 = 50A
0086 Row 5
Bit 0 = 1 if any of
bits 8–15 are set
to 1
Bit 0 = 0 if all of
bits 8–15 are set
to 0
Bits 1–7 = 0
Bit 8 = LB8
Bit 9 = LB7
Bit 10 = LB6
Bit 11 = LB5
Bit 12 = LB4
Bit 13 = LB3
Bit 14 = LB2
Bit 15 = LB1
0087 Row 6
Bit 0 = 1 if any of
bits 8–15 are set
to 1
Bit 0 = 0 if all of
bits 8–15 are set
to 0
Bits 1–7 = 0
Bit 8 = RB8
Bit 9 = RB7
Bit 10 = RB6
Bit 11 = RB5
Bit 12 = RB4
Bit 13 = RB3
Bit 14 = RB2
Bit 15 = RB1
0088 Row 7
Bit 0 = 1 if any of
bits 8–15 are set
to 1
Bit 0 = 0 if all of
bits 8–15 are set
to 0
Bits 1–7 = 0
Bit 8 = SV8
Bit 9 = SV7
Bit 10 = SV6
Table G.18 Modbus Map (Sheet 8 of 15)
Address
(Hex)
Field Units
Range
Scale
Factor
Low High Step