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OVERVIEW
Official designation: Allen-Bradley 1747-L542 (SLC 5/04, Controller Module)
This SLC 5/04 processor provides 32 KB user memory, RS-232 and DH+ communication ports, and supports up to 4096 I/O points for high-speed industrial control.
KEY SPECS SUMMARY
User Memory: 32 K words
Power: 5V DC, 750 mA
Interfaces / Ports: RS-232 and DH+ ports
Indicators: Nine status LEDs (Run, Fault, Battery)
Operating Temp: 0 to 60 degrees C
Platform / Compatibility: SLC 500 chassis
Limit: Maximum 4096 I/O points
Lifecycle: Discontinued
FREQUENTLY ASKED QUESTIONS
Technical Specifications:
Q: How much user memory does the 1747-L542 controller module possess?
A: The controller has 32 Kilowords of user program and data memory.
Wiring & Installation:
Q: What are the primary communication ports available on the 1747-L542 controller?
A: The controller includes dedicated communication ports for RS-232 and DH+.
Troubleshooting & Compatibility:
Q: What does an illuminated red Fault indicator LED on the controller signify?
A: The red Fault LED signifies a critical system error requiring processor examination.
Replacement & Upgrades:
Q: Is the 1747-L542 part of a product family that is still active?
A: The SLC 500 platform, including the 1747-L542, is considered discontinued.
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