LX3VP 1212M/1412M PLC Power supply:A: AC100-240V power,D:DC24V power. 20W rated power IO: 12xDI/12xDO(Transistor-type),2-channel 200K high-speed pulse output Port:RS422, RS485,1 BD board supported. Protocol: 2N NO PROTOCOL, LX3VP PROTOCOL Support 64K-step ladder. Support N:N PLC network up to 8 PLCs; T50~T191 can be changed to 1ms timers by M8028