PCD2 processor unit with Ethernet TCP/IP, \nweb and FTP server, file system, \n2 MByte user program, \n1 MByte RAM DB/Text, \n128 MByte Flash memory, \n4 I/O module sockets, expandable up to 1024 I/O, \nclock (RTC), \ninterfaces: Ethernet, USB port for PG5, \nRS-485 (187.5 kbit/s), RS-485 (1.5 Mbit/s), \n1 slot A for PCD7.F1xxS, \n1 slot C for Profibus or CAN