For coded magnetic switch monitoring. 24V dc. Safety modules XPSDMB meet the requirements of Performance Level PL e/Category 4 conforming to standard EN/ISO 13849-1. These safety modules are specifically designed for monitoring two independent sensors. To monitor a higher number of magnetic switches using the XPSDMB, the magnetic switches can be connected in parallel series. These XPSDMB modules incorporate 2 N/O safety outputs and 2 solid-state outputs for signalling to the PLC and have LEDs to provide information on the monitoring circuit status.