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OVERVIEW
Official designation: Allen-Bradley 1756-M22 (ControlLogix, Expansion Memory Module)
Role/Application: Expands user memory for 1756-L61/L62 processors to handle complex code and large data arrays.
KEY SPECS SUMMARY
Power: From controller
Interfaces / Ports: Plug-in proprietary
Indicators: N/A
Operating Temp: 0 to 60 degrees C
Platform / Compatibility: ControlLogix L6x
Limit: 1 MB memory size
Lifecycle: Discontinued
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: What is the total memory capacity of the 1756-M22?
A: It provides 1 MB of expansion memory for compatible controllers.
Wiring & Installation:
Q: Does the module require a separate power cable?
A: No, it installs directly into the processor memory slot.
Troubleshooting & Compatibility:
Q: Can this be used with ControlLogix 5570 or 5580 series?
A: No, it is compatible only with legacy 1756-L6x processors.
Replacement & Upgrades:
Q: What should I use if this module is unavailable?
A: Upgrade to a controller with higher integrated memory like L7 or L8.
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| Country of Manufacture or Origin | See this page for details |
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| After-sales Service Contact or Customer Support Number | See this page for details |
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