Description
📌 FANUC A20B‑2900‑0142 — PMC Control Module (with PMC‑RA1 & SLC)
Description:
The A20B‑2900‑0142 is a PMC (Programmable Machine Controller) control module designed for use inside FANUC CNC systems as part of the control electronics rack. It’s a printed circuit board (PCB) that handles PMC logic and control functions on compatible machines.
Key Details:
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🧠 Function: Acts as a PMC control module with PMC‑RA1 and SLC components, managing ladder/logic control functions within the CNC rack.
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🛠️ PMC Role: The PMC (Programmable Machine Controller) is FANUC’s internal ladder‑logic engine — similar to a PLC — used to control machine auxiliary functions (e.g., I/O logic, interlocks, sequences, safety checks).
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📌 Product Series: Part of the A20B‑2900 series, which includes various modules (memory, PMC, I/O, analog/digital modules) for FANUC Series 16, 18, 20, 21 and similar CNC controllers.
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🔌 Integration: Designed to plug into a FANUC control rack alongside the main CPU, memory, and other functional modules — essentially part of the internal logic control subsystem.
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⚙️ Typical Use: Used in CNC machines where machine ladder logic and auxiliary control sequences must be processed reliably by the CNC’s control electronics.