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Appendix G—Modbus Register Map
S811+ Soft Starter
MN03900001E—November 2012
69
Modbus Motor Two Wire Control 1
501
R/W
UINT8
bit
0
1
2
3
4
5
6
7
Description
Run1—Level Sense
Run2—Level Sense
reserved
Fault Reset
reserved
reserved
reserved
Ramp2 enable
Network Inputs
1
502
R/W
UINT8
bit
0
1
2
3
4
5
6
7
Description
C441/Network Input#1
C441/Network Input#2
C441/Network Input#3
C441/Network Input#4
MODBUS Baud Rate
1
503
R/W
UINT8
Value
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
Description
1200 baudrate
2400 baudrate
4800 baudrate
9600 baudrate
19.2k baudrate
38.4k baudrate
57.6k baudrate
115.2k baudrate
230.4k baudrate
460.8k baudrate
MODBUS Slave Address
1
504
R
UINT8
address values 1–63
MODBUS Parity
1
505
R/W
UINT8
Value
0x00
0x01
0x02
Description
Even parity
Odd parity
None
MODBUS Stop Bits
1
506
R/W
UINT8
Value
0x01
0x02
Description
1 stop bit
2 stop bits
MODBUS Transmission Mode
(RTU/ASCII)
1
507
R/W
UINT8
Value
0x00
0x01
Description
RTU mode
ASCII mode
Motor FLA Value
4
600
R/W
FLOAT
Motor nameplate fla
601
R/W
Reg600 = LSB1, LSB0
Reg601 = MSB, LSB2
Motor FLA Value scaled in 0.1A
2
602
R/W
UINT16
110–10,000 range
Overload Trip Class Value
1
603
R/W
UINT8
Class 5–30
Motor Rated Volts
2
604
R/W
UINT16
115V–600V (Motor nameplate voltage)
Motor Line Frequency Rating
2
605
R/W
UINT16
50.00–60.00Hz (in 0.01Hz)
Motor Wiring Cfg
1
606
R/W
BOOL
0 = Inline Wiring
1 = Inside Delta
Motor Phase Sequence
1
607
R/W
UINT8
0 = ABC Phase sequence
1 = ACB Phase sequence
Register Map, continued
Parameter
Data
Length
Modbus
Register
Number
Read/Write
Data
Type
Description