Connecting a new controller to, or updating the firmware of a controller connected to, an active Modbus configured serial line can cause the other devices on the serial line to stop communicating.
The Machine Expert protocol is incompatible with that of other protocols such as Modbus Serial Line. The serial line ports of your controller are configured for the Machine Expert protocol by default when new or when you update the controller firmware. O Do not attempt to place the device into service until the file transfer has completed successfully.įailure to follow these instructions can result in equipment damage. O Re-initiate the transfer if the transfer is interrupted for any reason. O Do not interrupt the transfer of the application program or a firmware change once the transfer has begun.