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Allen Bradley 1747-M1 EEPROM Memory Module
- Product Details
- FAQs
- Related
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- Packing & Delivery
- Product Ratings
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
FAQ
-
What is the primary purpose of the 1747-M1 memory module?
It is used to store a backup copy of the user program for SLC 500 processors, allowing quick recovery when needed. -
Does the memory module require a battery to retain data?
No, the EEPROM design retains data without the need for a battery. -
How is the stored program used during system recovery?
The processor can load the program from the EEPROM back into its internal memory during startup or replacement. -
Can the memory module be reused across different processors?
Yes, it can be transferred between compatible SLC 500 CPUs to replicate or restore programs. -
Is the memory content affected by power loss?
No, the EEPROM retains data even when power is completely removed. -
How does this module improve maintenance efficiency?
It allows technicians to restore control logic quickly without reloading programs from external software tools. -
Can the stored program be updated?
Yes, the EEPROM can be rewritten when program changes are made and saved to the module. -
Does the module impact processor execution speed?
No, it is used only for storage and does not affect real-time program execution. -
Is the memory module required for normal CPU operation?
No, it is optional, but strongly recommended for backup and recovery purposes. -
What type of systems benefit most from using this module?
Systems that require high availability, fast recovery, and secure program storage benefit the most.
Related Models
| Model | Description |
|---|---|
| 1747-M2 | Higher-capacity EEPROM memory module |
| 1747-M3 | Extended memory module for SLC 500 |
| 1747-L541 | SLC 500 CPU with EEPROM support |
| 1747-L542 | Mid-range SLC 500 processor |
| 1747-L543 | High-memory SLC 500 CPU |
| 1747-L552 | Performance-optimized SLC 500 processor |
Popular Models
| Model | Product Type |
|---|---|
| 1746-IB16 | Digital Input Module |
| 1746-OB16 | Digital Output Module |
| 1746-NI4 | Analog Input Module |
| 1746-NO4I | Analog Output Module |
| 1746-P2 | Power Supply Module |
| 1746-A7 | SLC 500 Chassis |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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