Siemens 6ES7315-2EH14-0AB0 Programmable Logic Controller CPU Module

Siemens 6ES7315-2EH14-0AB0 is a SIMATIC S7-300 CPU315-2 PN/DP central processing unit designed for modular, rack-based PLC systems and provides robust onboard memory for control tasks. It includes 384 KB of integrated work memory and supports a plug-in Micro Memory Card (MMC) for program and data storage up to 8 MB, with MMC data management designed to persist after the last programming for an extended period. The CPU offers two communication interfaces: an MPI/DP 12 Mbps interface and a separate Ethernet PROFINET interface with a built-in 2-port switch, enabling diverse network topologies and isochronous operation via PROFIBUS DP or PROFINET. It is powered from 24 V DC (range 20.4 to 28.8 V) with a rated current around 750 mA (150 mA in no-load), includes 5 ms mains-voltage failure buffering, and has a typical power loss of 4.65 W; isochronous mode support enhances deterministic timing for motion and process control. Programming is done with STEP 7 V5.5 or newer, and the device is specifically designed for SIMATIC S7-300 configurations, combining MMC-based memory with dual network interfaces to suit compact, multitier automation tasks.