... , surveillance and other function such as multi-point communication of MODBUS. Since the AUX port of the PLC have no power ... communicate with Schneider PLC need to install Uni-Telway or MODBUS driver to at first, for using the corresponding various PLC ... -click on the icon, then achieve the settings, XWAY Test, MODBUS Test communications test of the RS232 serial (COM slogan) which ...