I am trying to set the E3C device number on the I2C Converter with Dual Serial to 16-Port Hardware I2C board (PR54-11_PR54-12) using the Alpha Station software. The PR54-11_PR54-12 board has 2 RS485 communications modules on it so I have a USB to RS485 converter cable connected between my laptop and the board. I have the jumper on the PR54-11_PR54-12 board in the program position. I connect to the PR54-11_PR54-12 board using the Alpha Station software and traverse to the Device Configuration selection. I change the E3C device number to 2 and click Store Device Settings. When I power the NCD board off and back on and look at the Device Configuration again, the E3C device number is back to 0.
Please use Communication Port 1 for configuration changes and put the controller back into run mode using the jumper after setting the device number. Then check the E3C device number. I have not tried this with the RS485 converter, only USB, so you might check with a USB interface before moving to RS485.