Data exchange with external systems via Modbus RTU protocol (master);
Supported function codes: FC 1, FC 2, FC 3, FC 4, FC 5, FC 6, FC 15, FC 16 and FC 8
Hardware interfaces (optional): RS 422, RS 485, RS 232, TTY
Baud rates: 300, 600, 1200, 2400, 4800, 9600, 19200
Number of inputs: 230 (buffer addresses: 0 ... 229)