13 in stock
Allen-Bradley 1756-M12 ControlLogix 750 K Memory Module
Allen-Bradley 1756-M12 ControlLogix 750 K Memory Module
Brand/Manufacturer: Allen-Bradley
Order Number: 1756-M12
Type: PLC Controller Memory Modules
Country of Origin: USA
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
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Description
The Allen-Bradley 1756-M12 is a 750 KB expansion memory module designed specifically for first-generation ControlLogix controllers, primarily matching the 1756-L55 (Logix5555) series. Installed directly into the controller's internal expansion slot, it expands user memory capacity for data tags, sequential routines, and complex process control programs.
System Compatibility and Memory Expansion
The module provides 750 KB of non-volatile program and data storage. It integrates directly onto the host processor board, combining with the base controller to form full assemblies such as the 1756-L55M12.
The 1756-M12 is compatible with the entire 1756-L55 controller family, including base models paired with other expansion options (such as 1756-L55M13, 1756-L55M14, 1756-L55M16, 1756-L55M22, 1756-L55M23, and 1756-L55M24). This modular architecture enables facilities to upgrade or replace memory components without disposing of the core controller hardware.
Operational Requirements and Environment
The module installs inside the main controller unit housed within a standard 1756 ControlLogix chassis. It draws operating power from the backplane via the host controller, with typical 5.1 VDC backplane current requirements for the combined assembly.
Designed for industrial environments, the module supports standard operating ambient temperatures from 0 to 60 deg C (32 to 140 deg F) and relative humidity levels between 5% and 95% non-condensing. Its lightweight design adds approximately 0.06 kg (0.13 lbs) to the controller unit.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-M12 |
| Brand | Allen-Bradley / Rockwell Automation |
| Product Type | Controller Memory Expansion Module |
| Memory Capacity | 750 KB |
| Host Controller Compatibility | ControlLogix 1756-L55 (Logix5555) |
| Mounting | Internal Controller Daughtercard Slot |
| Power Source | Internal via Controller / Chassis Backplane |
| Operating Temperature | 0 to 60 deg C (32 to 140 deg F) |
| Storage Temperature | -40 to 85 deg C (-40 to 185 deg F) |
| Relative Humidity | 5 to 95% Non-condensing |
| Operating Altitude | Up to 1000 m |
| Weight | Approx. 0.06 kg (0.13 lbs) |
Frequently Asked Questions
Q: Which controller family uses the 1756-M12 expansion memory module? A: The 1756-M12 is designed specifically for Allen-Bradley ControlLogix 1756-L55 (Logix5555) controllers, forming complete assembly units like the 1756-L55M12.
Q: Can the 1756-M12 module be installed directly into a chassis slot? A: No, the 1756-M12 is an internal memory daughtercard that plugs directly into the host 1756-L55 controller board, not into a standard 1756 backplane slot.
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Testimonials
Fast Delivery, Excellent Quality
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
- Sarah Johnson
Reliable Partner for Original Parts
Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
- David Smith
Professional Service with After-Sales Support"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."
- Emily Brown
Trusted Source for Industrial Automation Spares
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson
We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.
- Michael Anderson