Description
1. At-A-Glance Executive Brief
- Model: 1756-M13A
- Brand: Allen-Bradley (Rockwell Automation)
- Part Type: ControlLogix Non-Volatile Memory Card (CompactFlash)
- System Compatibility: Allen-Bradley 1756-L55 ControlLogix Processors
- Lifecycle Status: Mature / Legacy Support
- Capacity: 128MB Storage
2. Technical Introduction
Unexpected power interruptions or battery failures in legacy control architectures often threaten critical application code, leading to prolonged recovery times during facility outages. The Allen-Bradley 1756-M13A provides robust non-volatile CompactFlash storage designed specifically for legacy ControlLogix 5555 (1756-L55) processors. By securing user programs, tag databases, and configuration states on a reliable flash medium, this card eliminates total data loss risks during deep discharge events, enabling fast, automated program restoration upon system reboot.
3. Core Technical Specifications
| Parameter | Value |
| Memory Type | CompactFlash Non-Volatile Storage Media |
| Storage Capacity | 128 MB |
| Processor Compatibility | 1756-L55 ControlLogix Series Controllers |
| Data Retention | Battery-free non-volatile flash preservation |
| Insertion Durability | Rated for standard industrial chassis maintenance cycles |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Enclosure Type | Open-style industrial plug-in module card |
| OEM Datasheet | Please refer to the OEM documentation for complete environmental tolerances. |
4. Field Engineer’s Tech Notes
- Controller Slot Seating: When inserting or removing the 1756-M13A into a powered-down 1756-L55 processor, ensure the card is pushed fully into the front-face slot until the ejector latch locks cleanly. Partial seating causes read/fail faults on boot.
- Load Memory Configuration: Check the processor load memory configuration switches or software settings (Load Image on Memory Error / Store to Non-Volatile Memory) in RSLogix 5000 to ensure automatic execution matches your plant’s disaster recovery strategy.
5. Adaptive QA & Testing Protocol
Every pre-owned or New Surplus (NSFP) 1756-M13A memory card undergoes strict functional validation on our dedicated test rack before leaving our facility.
- Testing Actions: Technicians insert the memory card into a live 1756-L55 test controller to verify physical pin integrity and slot retention. We execute multiple read, write, and image-store cycles using RSLogix 5000 to confirm that project files load without corruption and that sector integrity matches factory specifications.
- Documentation: Detailed functional test verification logs and confirmation reports are available upon request prior to dispatch to ensure total operational readiness.
6. Buyer’s FAQ
- Is the 1756-M13A compatible with newer ControlLogix controllers like the L6x or L7x series?
No, this specific CompactFlash card is designed strictly for legacy 1756-L55 processors. Newer controller series utilize built-in non-volatile storage or SD-card formats.
- What is the warranty coverage for this memory module?
All units include a comprehensive 12-month operational warranty covering hardware integrity and read/write stability.
- How quickly can this part be shipped for emergency replacements?
In-stock items ship same-day from our US warehouse via expedited air freight to reduce downtime during plant maintenance windows.
- Do I need to re-format the card before installation?
No, modules supplied from our inventory are cleared, tested, and ready for immediate project download directly through your programming software.
