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OVERVIEW
Official designation: Allen-Bradley 1756-L1M1 (ControlLogix 5550, Processor Module)
Role/Application: Entry-level Logix5550 controller managing discrete and process control in small industrial automation chassis systems.
KEY SPECS SUMMARY
Power: 650mA at 5.1V DC
Interfaces / Ports: RS-232 Serial Port
Indicators: RUN, FORCE, OK LEDs
Operating Temp: 0 degrees C to 60 degrees C
Platform / Compatibility: ControlLogix Chassis
Limit: 512 KB User Memory
Lifecycle: End of Life
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: What is the total memory capacity available for user applications?
A: This module provides 512 KB of user RAM for program and data.
Wiring & Installation:
Q: Does the 1756-L1M1 require a specific slot within the chassis?
A: No, it can be installed in any available slot in the rack.
Troubleshooting & Compatibility:
Q: What does a solid red OK LED indicate on the front panel?
A: A solid red LED signifies a non-recoverable hardware or firmware fault.
Replacement & Upgrades:
Q: What is the current recommended upgrade for this discontinued processor?
A: Proponents suggest migrating to the 1756-L7 or 1756-L8 series controllers.
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| Category | Details |
|---|---|
| Product Name | See this page for details |
| 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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