Siemens S7-400 RAM Memory Card 16MB 6ES7952-1AS00-0AA0 PLC Module

Description

The Siemens SIMATIC S7-400 RAM Memory Card (Part Number: 6ES7952-1AS00-0AA0) is a 16 Mbyte expansion memory card designed for Siemens SIMATIC S7-400 PLC systems. It serves as volatile load memory to hold user program blocks, symbol tables, system configuration parameters, and dynamic process data required during real-time CPU execution.

Engineered with high-speed random-access memory (RAM) technology in a long-version footprint, the card inserts directly into the dedicated memory slot of S7-400 CPUs. It is ideal for plant engineers, system integrators, and maintenance teams across Bangladesh who require expanded memory for complex control algorithms, extensive data logging, and large-scale process automation projects.

Key Features

• 16 Mbyte Storage Capacity: Provides 16 MB of volatile RAM expansion to accommodate large user programs and data blocks.
• Long Form Factor: Precision-engineered long-version design ensuring proper slot alignment and physical keying with S7-400 CPUs.
• High-Speed RAM Performance: High-speed read/write access times match the rapid execution cycles of S7-400 processors.
• Direct Bus Integration: Operates directly on the internal CPU bus for low-latency signal transfer and seamless program execution.
• Retentive Memory Support: Retains program and variable data when supported by the CPU battery back-up system during main power loss.

Technical Advantages

• High Efficiency: Provides rapid memory access without bottlenecking the CPU execution cycle time during complex logical processing.
• Durable Construction: Industrial-grade housing protects internal semiconductor chips from vibration and electrical interference.
• Safety Protection: Built-in hardware keying prevents incorrect insertion or physical mismatch with non-compatible slots.
• Energy Saving: Highly optimized low-power CMOS RAM layout minimizes power consumption from the CPU backplane bus.
• Easy Maintenance: Plug-and-play installation allows straightforward insertion and removal without specialized tools.

Applications

• Industrial: Large-scale manufacturing, chemical processing plants, fertilizer factories, and steel mills.
• Factory: Textile spinning, weaving, automated garment processing, and pharmaceutical batch automation in Bangladesh.
• Commercial: Centralized HVAC control stations, large water treatment facilities, and infrastructure management systems.
• Project Installation: Extending program capacity on existing S7-400 installations, retrofitting control cabinets, and replacing failing memory cards.

Why Choose This Product?

• Reliability: Built to rigorous Siemens automation quality standards for continuous round-the-clock industrial operation.
• Performance: High-density 16MB RAM enables seamless handling of expanded program code and data structures.
• Cost Effectiveness: Avoids complete controller replacement by simply expanding the memory capacity of existing S7-400 CPUs.
• After-Sales Value: Backed by local technical support, verified authenticity, and reliable delivery across Bangladesh via loopshop.com.bd.

Technical Specification Table

Features List

✓ 16 Mbyte RAM capacity for SIMATIC S7-400 CPUs

✓ Long design physical form factor for exact slot alignment

✓ High-speed read/write volatile memory technology

✓ Seamless CPU bus connection without external cabling

✓ Back-up battery compatible for retentive program storage

Benefits For Customers

• Protects Existing Infrastructure: Extends the lifecycle of S7-400 PLC systems without replacing main CPU hardware.
• Improves Operational Reliability: High-speed RAM minimizes latency in complex control loops and data processing.
• Saves Maintenance Cost: Simple plug-and-play insertion minimizes installation downtime during routine memory upgrades.
• Suitable for Bangladesh Environment: Designed to operate reliably in ambient panel temperatures up to +60 °C across BD industrial plants.

Installation & Maintenance Guide

Installation Requirements:

1. Turn off power to the S7-400 rack before inserting or removing the memory card.
2. Verify that the S7-400 CPU possesses a functional back-up battery if retentive program storage during power-off is required.
3. Align the long-version 6ES7952-1AS00-0AA0 card carefully with the CPU card slot.
4. Insert the card firmly until it clicks or seats completely into position.
5. Power up the system and download the user project using Siemens SIMATIC Step 7 or TIA Portal software.

Maintenance Tips:

1. Ensure CPU back-up batteries are checked and replaced regularly to prevent loss of volatile RAM data during power cuts.
2. Keep the CPU enclosure free from conductive dust and humidity.
3. Store spare memory cards in anti-static protective bags when not installed in a CPU slot.

Safety Instructions:

1. Installation must be performed by qualified electrical or automation personnel.
2. Observe Electrostatic Discharge (ESD) precautions when handling memory cards.
3. Never force the card into an incorrect slot; ensure physical orientation matches the slot keying.

Frequently Asked Questions (FAQ)

Q: What is the price of Siemens 6ES7952-1AS00-0AA0 in Bangladesh?

A: Prices vary based on stock availability and import rates. Contact loopshop.com.bd or request a direct quotation for current BDT pricing.

Q: Where can I buy Siemens 6ES7952-1AS00-0AA0 in Bangladesh?

A: You can purchase genuine Siemens S7-400 components online from loopshop.com.bd with delivery across Dhaka, Chattogram, Gazipur, Narayanganj, and nationwide.

Q: What warranty does this product have?

A: loopshop.com.bd provides standard vendor/seller warranty coverage against manufacturing defects upon delivery.

Q: Is this suitable for Bangladesh climate?

A: Yes, it is rated for operational ambient temperatures up to +60 °C inside industrial panels, suitable for Bangladesh’s factory conditions.

Q: How to install this product?

A: Power down the S7-400 rack, align the long memory card with the CPU memory slot, slide it in firmly until fully seated, power up the system, and perform a memory reset before downloading software.

Q: What is the memory capacity of the 6ES7952-1AS00-0AA0 card?

A: It features a 16 Mbyte RAM capacity designed for SIMATIC S7-400 PLCs.

Q: Is this card volatile or non-volatile memory?

A: This is a volatile RAM card; data is retained during power-off through the S7-400 CPU back-up battery.

Q: Can this memory card be used in S7-300 PLCs?

A: No, this long-version RAM memory card is engineered exclusively for Siemens SIMATIC S7-400 CPU series.

Q: Which programming software is used with this module?

A: S7-400 CPUs with memory cards are configured and programmed using Siemens STEP 7 (V5.x) or TIA Portal.

Q: Does loopshop.com.bd supply authentic Siemens PLC modules in BD?

A: Yes, loopshop.com.bd supplies genuine Siemens industrial automation hardware through verified networks.