Work memory 50 KB; 24VDC power supply with DI6 x 24VDC SINK/SOURCE, DQ4 x 24VDC and AI2 on board; 3 high-speed counters (expandable with digital signal board) and 4 pulse outputs on board; signal board expands on-board I/O; up to 3 communication modules for serial communication; PROFINET IO controller, I-device, transport protocol TCP/IP, secure Open User Communication, S7 communication, Web server, OPC UA: Server DA, Version 4,4