... COM ports, support both Modbus protocol and free communication protocol4) Analog dispose functions: Configure XP-2AD2PT-BD ... transistor output, 3.7 inch blue LCD; support RS485, 2CH pulse output, 2CH AB-phase count, ... transistor output, 3.7 inch blue LCD; support RS485, 2CH pulse output, 2CH AB-phase count, ... cardsXMH-30RT-ETH765 with 26 buttons+30I/O PLC;16input 14 output; support RS485, 2CH pulse output ...