Allen Bradley 1747-L541 SLC 500 Modular Processor (CPU)

FAQ

Q1: What is the 1747‑L541?
It is a modular CPU processor used in Allen‑Bradley SLC 500 systems to execute control logic.

Q2: Which processor series does the 1747‑L541 belong to?
It belongs to the SLC 5/04 processor family.

Q3: How much memory does the 1747‑L541 have?
It provides 32 K words of user memory for programs.

Q4: What communication interfaces are available?
It supports both DH‑485 and RS‑232 communication protocols.

Q5: What is the processing speed like?
Typical scan time is about ~0.6 ms per 1 K instructions with a ~0.6 µs bit execution rate.

Q6: How many I/O points can it support?
It can support up to 4096 discrete inputs and outputs depending on configuration.

Q7: What are the physical dimensions and weight?
Dimensions are approximately 5.5 × 1.37 × 5.15 in, and weight is about 0.32 kg.

Q8: Is the 1747‑L541 still produced?
No — it is part of the discontinued Allen‑Bradley SLC 500 processor lineup.

1747-L541 Allen Bradley

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