Siemens 6ES7315-2EH14-0AB0 SIMATIC S7-300 CPU Module

Siemens SIMATIC S7-300 CPU 315-2 PN/DP, part number 6ES7315-2EH14-0AB0, is a compact central processing unit designed for the S7-300 family. It provides 384 KB of working memory to support program data and runtime operations, enabling modestly sized automation tasks to run locally on the PLC. The CPU offers a first interface MPI/DP at 12 Mbps for Profibus DP fieldbus connections, and a second interface Ethernet PROFINET for standard industrial Ethernet networking, with an integrated 2-port switch to help simplify network topology by interconnecting devices without additional hardware. A Micro Memory Card is required to store the program and data remotely, typical for field deployments. In PN/DP configurations, this CPU supports simultaneous Profibus DP and PROFINET communications, making it suitable for compact automation cells, machine control, and small production lines where reliable Ethernet and fieldbus integration is needed. This module is commonly used in retrofit projects or new builds that rely on Siemens SIMATIC S7-300 hardware and require dual-communication capability plus on-board memory for running control logic and handling I/O data.