Siemens 6ES7 318-3EL01-0AB0 Central Processing Unit

Siemens 6ES7 318-3EL01-0AB0 SIMATIC S7-300 CPU (CPU 319-3 PN/DP) is the central processing unit for Siemens S7-300 automation projects, combining processing power, built‑in networking, and dedicated memory for mid‑range control tasks. It provides 2 MB of memory for user programs and data, a built‑in 24 V DC power supply, and no onboard I/O, so external I/O modules are required for sensing and actuation. Communication options include 1 x RS-485 MPI/PROFIBUS DP (Master/Slave), 1 x RS-485 PROFIBUS DP Master/Slave, and 1 x 10/100 Mbps Ethernet (Ethernet/PROFINET) with a built‑in two‑port Ethernet switch, enabling both fieldbus and industrial Ethernet connectivity within a single CPU. This CPU belongs to the S7‑300 family and supports STEP 7 configuration and programming for integration into existing S7-300 systems. Designed for mid-range automation tasks in manufacturing and process control where integrated networking helps streamline control architectures.