Weidmüller RSMB-16R0CD-FLDSMBKK is a 16-channel PLC relay interface terminal board. The controller side adopts FLB flat cable plug-in quick connection, while the field side uses screw clamp terminals for on-site wiring. Each channel is equipped with a 24VDC single-pole changeover relay and independent LED working status indicator, providing reliable galvanic isolation between PLC control signals and field actuators.