Network master to serial slaves
In the “Network master to serial slaves” mode, the device acts like network server where masters (clients) can connect (the default port being 502) and transmit Modbus requests. The device makes conversions between network and serial protocols. If the slave does not reply during defined timeout or if the reply is corrupted, the device sends “gateway exception message” back to the master if the exception generation is enabled. Otherwise, the reply is returned. Multiple masters can connect simultaneously to the Gateway, which handles the multiplexing between masters.