For related system and data transfer with external equipment and third party devices, serial communication has long been the established connection method. Serial communication allows the FX Series to connect both efficiently and reliably with other PLCs, sensor, printers, and modems, etc. Multi drop networks , non-protocol communication, and remote maintenance are just some of the many uses. Modbus Both an open network and a serial communicator, Modbus-RTU allows FX3 series PLCs to interface with a wide range of equipment and devices. Using RS-485 and RS-232, the FX3U-485ADP-MD and FX3U-232ADP-MB expand the networking capabilities of the FX system while still supporting general communication with other FX systems, non-protocol devices, and serial modems. Modbus serial communication parameters and communication execution are setup easily within the ladder program using GX Works2 or GX Developer, and the FX Modbus Master uses the special ADPRW instruction to communicate wi...
