The 1747-L541C is a controller module from the Allen-Bradley SLC 500 series. Here's a concise description:

• Processor Type: SLC 5/04 processor.

• Memory: 16 KB user memory, battery-backed RAM.

• Communication Interfaces: Includes 9-Pin RS-232 and Data Highway Plus (DH+).

• Input/Output Capacity: Supports up to 4096 input points and 4096 output points.

• Analog I/O Count: 480 points.

• Scan Times: Program scan time per keyword is 0.9 milliseconds; I/O scan time is 0.225 milliseconds.

• Programming Features: Advanced math instructions, indirect addressing, and remote I/O support.

• Operating Temperature: 0 to 60 degrees Celsius.

• LED Indicators: RUN, FLT, BATT, FORCE, DH+, and RS-232 for diagnostics.

• Applications: Commonly used in HVAC control, SCADA systems, and material handling.