Fanuc Profibus Board for 0i-C/ 0i Mate-C/ 16i/ 18i/ 21i A20B-8100-0430

📌 **** Related Context — FANUC A20B-8100-0430

Before describing your part, here’s its context in the FANUC A20B-8100 family, which are control/communication PCBs inside CNC controllers.

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📌 FANUC A20B-8100-0430 — PROFIBUS-DP Master Function Board

FANUC A20B-8100-0430 is a communication interface PCB used in FANUC CNC control systems. It specifically functions as a PROFIBUS-DP (Master Function) board that enables PROFIBUS-DP networking between the CNC controller and peripheral devices.

🔧 Key Details

• Part Number: A20B-8100-0430

• Category: PROFIBUS-DP (Master) PCB

• Series: FANUC A20B-8100 control boards

• Primary Function: Acts as the master communication interface for a PROFIBUS-DP network — used to connect the CNC controller to other PROFIBUS field devices such as I/O modules, drives, and PLCs.

• Role in System: Facilitates industrial communication and data exchange over a PROFIBUS network with other programmable devices.

📌 PROFIBUS-DP (Decentralized Peripherals) is a widely-used industrial fieldbus standard for real-time communication between automation controllers and distributed I/O or drives.

🛠️ Usage

• Installed on the backplane/rack of a FANUC CNC controller as a network interface module.

• Used on systems that need PROFIBUS-DP master connectivity — common in factory automation where the CNC must exchange data with external devices or PLC networks.

• Typically offered new or refurbished, and often supported with core exchange service from parts suppliers.

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🧾 In Short

A20B-8100-0430 is a FANUC PROFIBUS-DP Master Function PCB — a communication board that enables the CNC controller to act as a PROFIBUS-DP master, allowing fast and reliable industrial network data exchange between the CNC and other automation devices.