... , the frequency can reach 200KHz3) 2 COM ports, support both Modbus protocol and free communication protocol4) Analog dispose functions: Configure XP ... /8DO, 8 transistor output, 3.7 inch blue LCD; support RS485, 2CH pulse output, 2CH AB-phase count, 3CH external interruption ... output, 4 transistor output, 3.7 inch blue LCD; support RS485, 2CH pulse output, 2CH AB-phase count, 3CH external interruption ...