Programming Instructions
Notes Page 33/40
V. Modbus communication register
1) Address of Modbus registers
The registers are numbered in accordance with the Modbus standard. These are “HOLDINGS REGISTER”
on the range of registers from 40001 to 49999.
Some software and Modbus controllers use an address from 0 to 65535.
Modbus register 40001 therefore corresponds to Modbus address 0, register 40002 corresponds to
address 1 and so on and so forth.
Modbus
register
Number of
registers
Name Access
Format Description
Interfaces
41001
2 signal_POT1 r REAL Signal on POT PI1 input [mV]
41003
2 signal_POT2 r REAL Signal on POT PI2 input [mV]
41005
2 signal_AI1 r REAL Current on input AI1 [mA]
41007
2 signal_AI2 r REAL Current on input AI2 [mA]
41009
2 signal_AI3 r REAL Current on input AI3 [mA]
41011
2 signal_AI4 r REAL Current on input AI4 [mA]
41013
2 signal_MI1 r REAL Signal on MI1 input [Depends on module]
41015
2 signal_MI2 r REAL Signal on MI2 input [Depends on module]
41017
2 signal_K1 r REAL Signal on DIx input [Depends switch config]
41019
2 signal_K2 r REAL Signal on DIx input [Depends switch config]
41031
1 signal_DI1 r BOOL 0=OPEN / 1=CLOSE
41032
1 signal_DI2 r BOOL 0=OPEN / 1=CLOSE
41033
1 signal_DI3 r BOOL 0=OPEN / 1=CLOSE
41034
1 signal_DI3 r BOOL 0=OPEN / 1=CLOSE
41041
1 state_PO1 r BOOL 0=OPEN / 1=CLOSE
41042
1 state_PO2 r BOOL 0=OPEN / 1=CLOSE
41043
1 state_FO1 r BOOL 0=OPEN / 1=CLOSE
41044
1 state_FO2 r BOOL 0=OPEN / 1=CLOSE
41045
1 state_RO1 r BOOL 0=OPEN / 1=CLOSE
41046
1 state_RO2 r BOOL 0=OPEN / 1=CLOSE
41056
2 signal_AO1 r REAL Signal on AO1 output [mA]
41058
2 signal_AO2 r REAL Signal on AO2 output [mA]
41060
2 signal_AO3 r REAL Signal on AO3 output [mA]
41062
2 signal_AO4 r REAL Signal on AO4 output [mA]
41076
1 state_HI1 r BOOL 0=Out of range / 1=In range (Schedule)
41077
1 state_HI2 r BOOL 0=Out of range / 1=In range (Schedule)
41078
1 state_HI3 r BOOL 0=Out of range / 1=In range (Schedule)
41079
1 state_HI4 r BOOL 0=Out of range / 1=In range (Schedule)
41080
1 state_HI5 r BOOL 0=Out of range / 1=In range (Schedule)
41081
1 state_HI6 r BOOL 0=Out of range / 1=In range (Schedule)
41082
1 state_HI7 r BOOL 0=Out of range / 1=In range (Schedule)