Mitsubishi QS034B Description Description Mitsubishi PLC QS Safety Series 4 Slots, Base unit power supply + CPU + 4 I/O slots Related products MITSUBISHI FR-A540-0.75K-EC MITSUBISHI FR-A540-22K MITSUBISHI FX0-30MR-ES Mitsubishi FX2N-48ER-DS MITSUBISHI A985GOT-TBA-EU Mitsubishi FX2N-48ER-ES/UL