Mitsubishi QJ71C24N Description Description Mitsubishi PLC Q Series Serial communication module RS-232: 1 port, RS-422/485: 1 port Related products MITSUBISHI FX0-30MR-ES MITSUBISHI FR-A540-15K-EC Mitsubishi FX2N-48ER-DS Mitsubishi FX2N-48ET-ESS/UL MITSUBISHI A3ACPUR21 Mitsubishi FX0N-65EC