INSTRUCTIONS
4.9
Modbus Error Codes
Code
Description
Example
1
Illegal function code
The adapter or starter does not support the
requested function
2
Illegal data address
The adapter or starter does not support the
specified register address
3
Illegal data value
The adapter or starter does not support one of
the received data values
4
Slave device error
An error occurred while trying to perform the
requested function
6
Slave device busy
The adapter is busy (for example writing
parameters to the starter)
Modbus RTU Card (710-16499-00B)
15