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OVERVIEW
Official designation: Allen-Bradley 1756-L1M3 (ControlLogix, Expansion Memory Module)
Role/Application: Provides 2 MB of additional volatile memory capacity for L1, L55, and L6x series ControlLogix processors.
KEY SPECS SUMMARY
Power: From controller
Interfaces / Ports: Internal board conn
Indicators: N/A
Operating Temp: 0 to 60 degrees C
Platform / Compatibility: ControlLogix 5550
Limit: 2 MB total add-on
Lifecycle: End of Life
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: What is the specific memory capacity added by this module?
A: This module adds 2 MB of volatile SRAM to the processor.
Wiring & Installation:
Q: How is the 1756-L1M3 installed in the system?
A: It snaps onto the processor main board via internal headers.
Troubleshooting & Compatibility:
Q: Is this memory module compatible with ControlLogix L7 or L8 CPUs?
A: No, it is only for legacy L1, L55, and L6x processors.
Replacement & Upgrades:
Q: What should be checked if the processor does not recognize the memory?
A: Verify the module is seated firmly and matches CPU revision.
상품 정보 고시
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| Model Name | See this page for details |
| Certification or Licensing Information Required by Law | See this page for details |
| Country of Manufacture or Origin | See this page for details |
| Manufacturer | See this page for details |
| After-sales Service Contact or Customer Support Number | See this page for details |
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