Siemens 6ES7318-3EL00-0AB0 CPU Module for PLC

Siemens 6ES7318-3EL00-0AB0 is a SIMATIC S7-300 CPU 319-3 PN/DP central processing unit designed for industrial PLC control, delivering 1.4 MB of memory to store user programs and data. It provides three communication interfaces: an MPI/DP port at 12 Mbps for legacy fieldbus connections, a DP master/slave interface for DP I/O devices, and an Ethernet PROFINET interface for standard industrial networking, with a Micro Memory Card required for program and data storage. This CPU is intended for use within S7-300 automation configurations that previously used the 319-3 PN/DP model and serves as a spare-part replacement in legacy installations. For context, Siemens catalogs show the EL01 variant 6ES7318-3EL01-0AB0 offers 2 MB of memory and includes an integrated 2-port Ethernet switch, highlighting the EL00’s 1.4 MB memory configuration as the lower-end option in the same family.