Excellent PLC
Product Introduction
The Allen-Bradley 1747-M1 EEPROM Memory Module is a non-volatile memory device designed specifically for SLC™ 500 programmable controllers. Its primary function is to provide secure storage for user programs, enabling reliable backup and rapid recovery of control logic in industrial automation systems.
By storing the application program independently of the processor’s volatile memory, the 1747-M1 ensures that critical control logic can be retained during power loss, processor replacement, or system maintenance. This makes it an essential component in systems where program integrity and fast restoration are required.
The module is compact, easy to install, and fully compatible with SLC 500 processors that support external EEPROM memory. It is widely used in long-running industrial installations where system stability and protection against data loss are key priorities.
Product Specifications
| Parameter | Description |
|---|---|
| Product Type | EEPROM Memory Module |
| Compatible Platform | SLC 500 Programmable Controller |
| Memory Type | EEPROM (Non-volatile) |
| Memory Capacity | 1 K |
| Function | User program backup and storage |
| Data Retention | Non-volatile, no battery required |
| Installation Method | Direct mounting to compatible CPU |
| Application Role | Program protection and recovery |
| Dimensions | 80 × 50 × 20 mm |
| Weight | 0.1 kg |
Applications
• Program backup for SLC 500 control systems to prevent loss of user logic
• Rapid system recovery after CPU replacement or unexpected power interruptions
• Standardized machine deployments, where the same control program must be duplicated across multiple systems
• Maintenance support in facilities requiring quick restoration of control logic
• Industrial automation systems where program integrity is critical
• Legacy control installations that rely on proven SLC 500 architecture
Advantages
• Non-volatile memory design, ensuring program data is retained without batteries
• Fast program restoration, reducing system downtime during maintenance or hardware replacement
• Simple and reliable integration with compatible SLC 500 processors
• Compact form factor, requiring minimal installation space
• Improved system security, protecting control logic from accidental loss
• Proven industrial-grade reliability, suitable for long-term operation
