BL20-BR-24VDC-D BL20-E-16DI-24VDC-P BL20-E-16DO-24VDC-0.5A-P BL20-E-8AI-U/I-4PT/NI BL20-E-8DI-24VDC-P BL20-E-8DO-24VDC-0.5A-P BL20-GW-DPV1 BL20L2 BL20M120 BL20N50