Designed for the demanding requirements of modern industrial automation, the 6ES7291-8GF23-0XA0 SIEMENS SIMATIC S7 Memory Module MC 291 provides 64 KBytes of non-volatile storage for program backup, recipe data, and parameter sets. This module is specifically engineered for use with Siemens S7-200 series CPUs, enabling secure data retention even during power loss or system shutdowns. Its compact form factor and robust construction make it suitable for installation in control cabinets, production lines, and remote monitoring stations. With plug-and-play compatibility, the MC 291 eliminates the need for complex setup, allowing engineers to focus on optimizing process efficiency. Whether used for backup in existing systems or as a replacement part in legacy installations, this memory module ensures reliable operation and data integrity across diverse industrial applications.
| Parameter |
Specification |
| Product Type |
Memory Module (MC 291) |
| Model Number |
6ES7291-8GF23-0XA0 |
| Memory Capacity |
64 KBytes |
| Compatible CPUs |
Siemens S7-200 series (e.g., CPU 221, CPU 222, CPU 224, CPU 226) |
| Memory Type |
Non-volatile (Flash/EEPROM based) |
| Data Retention |
Program backup, recipe data, parameter sets |
| Operating Voltage |
5 V DC (supplied via CPU backplane bus) |
| Power Consumption |
Typically < 0.5 W |
| Ambient Temperature (Operation) |
-20°C to +60°C |
| Ambient Temperature (Storage) |
-40°C to +80°C |
| Relative Humidity |
5% to 95% (non-condensing) |
| IP Protection Class |
IP20 (enclosed control cabinet environment) |
| Dimensions (W x H x D) |
Approx. 30 mm x 80 mm x 60 mm |
| Weight |
Approx. 50 g |
| Certifications |
CE, UL, cUL, FM, ATEX (via host CPU) |
| Installation |
Direct plug-in to CPU expansion slot (no tools required) |
| Warranty |
Standard Siemens industrial warranty (typically 12 months) |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22