Tested modbus devices

Here is a list of devices I have tested with the modbus PI and have functioned well:

1. Automation Direct PLC's {IP and 485}
2. TriPLC {only tested mod 485}
3. Cummins Power Command 1300 {modbus 485 9600,8E1}
4. Siemens Transfer switch {modbus 485}
5. Eaton ELC line of PLC's {modbus 485}