The Modicon M258 Logic Controller and its range are described below.
1 LED Status
2 PCI slots (depending on the controller reference)
3 Controller Power Distribution Module (CPDM)
4 Expert I/O (Embedded)
5 Regular I/O (Embedded)
6 USB A port (Host)
7 USB programming port (Pgr Port)
8 Ethernet port (Ethernet)
9 Serial Line port (MBS)
11 CANopen port (CAN0)
14 Real Time Clock battery (Battery (RTC))