Siemens 6ES7952-1KP00-0AA0 SIMATIC S7-400 Memory Card

Overview

The Siemens 6ES7952-1KP00-0AA0 is a RAM memory card for the SIMATIC S7-400 PLC series. It has a memory capacity of 16 MB and is designed for S7-400 CPU modules to store user programs, data blocks, system parameters and configuration data. This volatile RAM card requires a backup battery inside the CPU to retain data when power is removed. It supports online program download, program archiving and redundant DCS control applications, widely used on industrial process skids, power plants and chemical automation systems.

Features

The Siemens 6ES7952-1KP00-0AA0 is a 16 MB RAM memory card for S7‑400 CPUs.6ES7952-1KP00-0AA0 is compatible with multiple S7‑400 CPU variants including CPU 414, CPU 416 and CPU 417. Volatile RAM design, data retention depends on the CPU backup battery. Supports fast program loading and high‑speed data access for large control projects. Standard plug‑in structure, easy installation and replacement without extra tools. Follows Siemens original S7‑400 backplane bus specification. Compliant with CE, UL and industrial EMC requirements for DCS and PLC cabinets.

Specs

Device Type: RAM Memory Card Model: Siemens 6ES7952-1KP00-0AA0 Brand: Siemens Series: SIMATIC S7‑400 Capacity: 16 MB Memory type: RAM (volatile) Compatible CPU: S7‑400 series CPU modules Mounting: Plug‑in on CPU front slot Status: Legacy S7‑400 spare part

Principle

The Siemens 6ES7952-1KP00-0AA0 acts as the external memory expansion of the S7‑400 CPU. The CPU executes control logic and reads/writes process data stored on this card. If the main power supply fails, the backup battery on the CPU supplies power to the RAM card to prevent data loss. Once the battery is exhausted, all program and data stored on the card will be erased.

Applications

The Siemens 6ES7952-1KP00-0AA0 is deployed in S7‑400 PLC and DCS systems for chemical, energy and water treatment process skids. The 6ES7952-1KP00-0AA0 is stocked as spare replacement for S7‑400 program memory upgrade and maintenance.