Product Introduction
When dependable program storage is essential for S7-300 systems, the Siemens 6ES7953-8LJ31-0AA0 Micro Memory Card delivers robust memory retention. As part of the Siemens S7-300/C7/ET 200 family, this card stores critical PLC logic and data reliably over long periods.
Technical Specifications Breakdown
| Specification |
Value |
| Product Type Designation |
Micro Memory Card |
| Memory Type |
Flash-EPROM |
| Memory Size |
512 kbyte |
| Minimum Write/Delete Operations |
100,000 |
| Data Retention (after final programming) |
10 years (min) |
| Width |
24 mm |
| Height |
32 mm |
| Depth |
1.4 mm |
| Weight |
Approx. 2 g |
The Siemens 6ES7953-8LJ31-0AA0 uses Flash-EPROM technology, offering 512KB capacity. With a minimum of 100,000 write/delete cycles, it withstands frequent updates. The 10-year data retention ensures program integrity even when power is removed.
Compatibility & Integration
This Micro Memory Card belongs to the Siemens S7-300, C7, and ET 200 product families. Use it in S7-300 CPUs that support MMC (Micro Memory Card) slots. It integrates directly without additional adapters.
Real-World Applications
In manufacturing lines, the Siemens 6ES7953-8LJ31-0AA0 stores machine control programs, maintaining uptime through reliable data retention. For process automation, it holds configuration data for ET 200 remote I/O stations. Its robust design reduces downtime caused by memory corruption.
Selection Guide & Purchasing Advice
Before purchasing, verify your S7-300 CPU supports MMC format and confirm the required memory capacity. The Siemens 6ES7953-8LJ31-0AA0 offers 512KB, suitable for small to medium applications. For genuine modules, trust PLC Source PRO, available at ubest101.myshopify.com. Ensure the card is used in approved environmental conditions for maximum reliability.