Sel 551 - Page 257

G.21
Date Code 20110408 Instruction Manual SEL-551 Relay
Modbus RTU Communications Protocol
Modbus RTU Communications Protocol
Bit 11 = SV5
Bit 12 = SV4
Bit 13 = SV3
Bit 14 = SV2
Bit 15 = SV1
0089 Row 8
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 = 0
Bit 9 = 0
Bit 10 = SV14
Bit 11 = SV13
Bit 12 = SV12
Bit 13 = SV11
Bit 14 = SV10
Bit 15 = SV9
008A Row 9
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 = SH4
Bit 9 = SH3
Bit 10 = SH2
Bit 11 = SH1
Bit 12 = SH0
Bit 13 = 79LO
Bit 14 = 79CY
Bit 15 = 79RS
008B Row 10
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
Table G.18 Modbus Map (Sheet 9 of 15)
Address
(Hex)
Field Units
Range
Scale
Factor
Low High Step