S611 Soft Starter    MN03902011E—May 2012    www.eaton.com 67
Modbus Registers, continued
Modbus 
Coil Number
Modbus 
Register Number R/W Parameter Name Description
— 2 R Control voltage (24 Vdc) The control voltage register is displayed in millivolts
— 3 R Ambient board 
temperature
Temperature is displayed in degrees celsius
— 4 R Maximum PC board 
temperature
The maximum ambient temperature seen by the PCB
— 5 R DIP switch value Present value of the configuration DIP switch
— 6 R Configuration CRC A CRC is calculated on the non-volatile configuration values. 
The CRC value is intended to provide a quick assessment of 
configuration state
— 7 R Communication module 
serial number
The serial number of the communication module
— 9 R Communication module 
firmware revision
Present firmware revision of the communication adapter
— 11 R Communication module 
hardware revision
Present hardware revision for the communication adapter PCB
— 101 R/W Field relay outputs Present hardware revision for the communication adapter PCB
1601 — — — Field relay output 1
1602 — — — Field relay output 2
— 102 R/W Field input 1 
debounce time
The input debounce can be set for each input point. The 
debounce value is set in milliseconds. Minimum time is 1 ms. 
Maximum debounce time is 1000 ms
— 104 R/W Field input 2 
debounce time
— 106 R/W Field input 3 
debounce time
— 108 R/W Field input 4 
debounce time
— 110 R/W Modbus comm loss 
timeout value (ms)
Modbus communication loss timeout. The timeout can be set 
from 0 ms (disabled) to 65535 ms
— 112 R/W Remote Modbus parity 0 = Even parity, 1 stop bit
1 = Odd parity, 1 stop bit
2 = No parity, 2 stop bits
3 = Even parity, 2 stop bits
4 = Odd parity, 2 stop bits
5 = No parity, 1 stop bit
— 222 R Product code 0x1108 Modbus 24 Vdc standalone I/O
0x1109 Modbus 120 Vac standalone I/O
0x111C S611 Modbus adapter 24 Vdc I/O 
0x111D S611 Modbus adapter 120 Vdc I/O
— 1000 R/W Modbus production list The production and consumption registers can be used to create 
custom Modbus interface ranges. Example: If field inputs 
register address 0 is put into the first slot of the production list, 
the field inputs register value will be available in the first slot of 
the Modbus production data register range. Production data is 
data provided by the device and consumption data is for data 
provided (written) to the device. Note that the values must be 
Modbus register address (for example, register number –1) not 
register number
2000 R Modbus production data
3000 R/W Modbus consumption list
4000 R/W Modbus consumption data
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