Siemens 6ES7952-1AY00-0AA0 SIMATIC S7 Memory Card

Product Description

The 6ES7952-1AY00-0AA0 is a Siemens RAM memory card designed for SIMATIC S7-400 series PLC CPUs. It has a memory capacity of 8 MB and is used for storing user programs, data blocks and system parameters. This RAM card requires a battery to retain data when power is off, and it is widely used in S7-400 automation control systems.

Features

• 8MB RAM memory card for S7-400 CPU
• Supports program and data storage for S7-400 controllers
• Data retention relies on the CPU backup battery
• Easy hot swap installation on S7-400 CPU slot
• Compatible with multiple S7-400 CPU models
• Stable performance for industrial long-term operation

Application Scenarios

• SIMATIC S7-400 PLC automation control system
• Large process control projects in chemical, power and metallurgy industries
• Redundant S7-400H high availability control systems
• Central control cabinets with large user programs and data storage demand

FAQ

Q: Does this RAM card keep data without battery?
A: No, data will be lost once the backup battery runs out or power is cut off.

Q: Which PLC series is it suitable for?
A: It is specially designed for Siemens S7-400 series CPUs, not for S7-1200/S7-1500/S7-300.

Q: What is the difference between RAM card and FLASH card?
A: RAM card reads/writes fast but needs battery; FLASH card can save data without battery.

Q: Can it be used for S7-400H redundant system?
A: Yes, it supports S7-400H high availability redundant controllers.