Siemens 6ES7315-2AF03-0AB0 CPU Module S7-300 PLC

Siemens SIMATIC S7-300 CPU 315-2 DP, model 6ES7315-2AF03-0AB0, is a compact CPU module for the S7-300 PLC family that combines processing with an integrated 24 V DC power supply. It provides 64 KB of working memory and a second DP interface (DP-Master/Slave) for Profibus DP networks, enabling flexible networking and topologies without an external power brick. The unit is powered from a 24 V DC supply with a rated current of 1 A (1000 mA), and it supports DP communications alongside the primary interface for PLC I/O and devices on the DP network. Designed as a spare part for S7-300 installations, this CPU typically serves as the controller core for logic execution while coordinating DP-connected I/O modules and Siemens DP devices in automation applications.