Siemens 6ES7952-1AP00-0AA0 SIMATIC S7-400 8 MB RAM Memory Card
ManufacturerSiemensModel6ES7952-1AP00-0AA0Product TypeSIMATIC S7-400 MC952 8 MB RAM Memory Card
01Product Identification
Siemens 6ES7952-1AP00-0AA0 is the SIMATIC S7-400 MC952 RAM Memory Card with 8 MB capacity and the long card design. It provides plug-in RAM load memory for compatible S7-400 controller configurations and is listed by Siemens as an active product. Because this is a volatile RAM card rather than a Flash card, CPU compatibility, load-memory requirements and the controller backup concept must be checked together before selection or replacement.
Configuration ControlVerify the full article number, nameplate, electrical design, interfaces, software, wiring and lifecycle requirement before ordering.
02Engineering Data
| Manufacturer | Siemens |
|---|---|
| Article Number | 6ES7952-1AP00-0AA0 |
| Product Designation | Memory Card MC952 / 8 MB / RAM |
| Automation Platform | SIMATIC S7-400 |
| Memory Type | RAM |
| Memory Capacity | 8 MB |
| Card Design | Long design |
| Primary Role | Plug-in load memory for compatible S7-400 CPUs |
| Product Lifecycle | PM300: Active Product |
| Quantity Unit | 1 piece |
| Country of Origin | Germany |
| EAN | 4019169009959 |
| UPC | 040892693720 |
03Functions
Operational Functions
- Provides 8 MB of plug-in RAM memory for supported SIMATIC S7-400 CPU configurations.
- Uses the Siemens MC952 long-form memory-card design.
- Expands the CPU load-memory resource within the limits of the selected S7-400 controller.
- RAM technology supports repeated project loading and program changes during the controller lifecycle.
- Works with the S7-400 backup concept required to retain volatile RAM contents.
- Carries the complete Siemens market-facing article number for unambiguous ordering.
Identification
- Manufacturer: Siemens
- Model: 6ES7952-1AP00-0AA0
- Product Type: SIMATIC S7-400 MC952 8 MB RAM Memory Card
- Status: Active product
04Applications
Use Cases
- S7-400 control systems that require an 8 MB RAM load-memory card.
- Maintenance replacement of an installed 6ES7952-1AP00-0AA0 card.
- Standard, fail-safe or high-availability S7-400 configurations whose CPU documentation supports this card.
- Project expansion where the existing S7-400 CPU requires additional plug-in load memory.
- Spare-parts planning for installed S7-400 controller assets using the exact MC952 card.
Compatibility Boundary
- Confirm that the installed S7-400 CPU supports the MC952 8 MB RAM card and its long design.
- Match the complete article number; RAM and 5 V Flash memory cards have different storage behavior.
- Verify the project size and CPU load-memory limits before transferring the control program.
- Review the CPU battery and backup arrangement because RAM contents depend on the documented backup concept.
- Handle the card using the S7-400 installation and electrostatic-discharge precautions.
05Lifecycle
- Siemens Industry Mall lists 6ES7952-1AP00-0AA0 as a PM300 active product.
- Keep the exact article number, controller type and project backup with the asset record.
- Do not treat an 8 MB Flash card as an automatic substitute for this 8 MB RAM card.
- Before exchange, create a verified project backup and confirm the CPU operating and backup state.
- After installation, restore the approved project and verify CPU startup, diagnostics, memory use and all process functions.
