Fanuc FL-net board for 0i-B/ 0i Mate-B/ 16i/ 18i/ 21i A20B-8100-0530

📌 Part Name & Basic Description

• Part Number: A20B-8100-0530

• Manufacturer: FANUC

• Type: Printed Circuit Board (PCB) / Control Board Module

• Function: FL-NET PCB — a communication/network interface board used in FANUC CNC control systems.

🧩 What It Does

The A20B-8100-0530 is a specialized circuit board that forms part of the electronics in a FANUC CNC controller. Specifically:

• It is described as an FL-NET PCB, which generally refers to a field/network communication interface board used for data exchange between a CNC control and other subsystems or networks (e.g., machine peripherals, diagnostics, I/O bridges).

• It plugs into the A20B-8100 series rack or main control chassis of a FANUC CNC controller. This series includes many boards that handle specific roles such as CPU, display interface, memory, PLC/PMC functions, and network communication.

🏭 Typical Use

• Found inside industrial CNC machine controllers (e.g., milling machines, lathes, machining centers) that use FANUC control electronics.

• Helps manage communication/data transfer within the CNC system, likely between the main CPU and peripheral modules or external devices over network links.