X20 multifunctional digital signal processor, coated, 3 digital channels 5 V (symmetrical) configurable as inputs or outputs, 2 digital input channels 24 V (asymmetrical), max. 2 event counters, 1 universal counter pair as A/B or up/down counter, linear movement generator (A/B; direction/frequency) with 1 reference pulse, 1 SSI absolute encoder, Net time function