Mitsubishi FX3U-232-BD Description Description Mitsubishi PLC, FX3U RS232C Interface module; for MELSEC FX3U Related products Mitsubishi FX2N-48ER-ES/UL MITSUBISHI FX1N-40MR-DS Mitsubishi FX0N-65EC Mitsubishi FX2N-48ER-DS MITSUBISHI FR-A540-22K MITSUBISHI FR-A540-0.75K-EC