Communication RS485 Port - Serial COM1/COM2 RS485 ports are commonly used in multi unit systems and for All devices are connected in a bus structure (line). RS232 provides longer distance communications. only point to point connection function while RS485 provides connection for multiple stations. Up to 32 stations (master or RS485 is currently a widely used communication interface in slaves) can be linked up in one segment. Half-duplex transmission data acquisition and control applications where multiple nodes system allowing transmission distances of up to 1.2 km. communicate with each other. Models PR-14 and PR-24 have a built-in RS485 Port with galvanic isolation.
In addition to all models (except PR-12 series), you can connect an additional expansion module PR-RS485. Serial COM Port Configuration Universal Port - Serial COM0 RS485 Port - Serial COM1 Can work as RS232/USB Except PR-12 Series 18