The FANUC A16B-1000-0030 is a discontinued Series 6 Model B / 6BII CNC master PCB used in compatible FANUC 6M and 6T controls. It forms the central control and backplane assembly for CNC processing, axis and spindle coordination, memory, display, I/O and machine-specific option boards.

Common system designations include 6MB, 6TB, 6MBII and 6TBII. The exact function depends on the board revision, ROM card, parameters, machine ladder and fitted peripheral boards, so the base number alone does not guarantee interchangeability.

A16B-1000-0030 Product Information

Series 6BII Control Architecture

A16B-1000-0030 provides the main processing and backplane functions for the Series 6 control. Depending on the machine, the complete assembly can include a separate ROM card, PC/PMC board, punch or communication board, I/O connection board, graphics hardware and additional-axis interfaces.

Display and Option Configuration

Series 6BII systems using this master board can be configured with a 9-inch monochrome display or applicable 14-inch color graphics hardware. Display type, ROM version, memory, I/O and servo-feedback options must be confirmed from the original machine rather than inferred from the master-board number.

Replacement and Backup Requirements

Match the complete A16B-1000-0030 revision suffix, jumpers, ROM card and software version, memory devices, PC/PMC board, connectors and all option boards. Back up parameters, programs, offsets, diagnostics and ladder data before removal. Installation and data restoration should be completed by qualified FANUC CNC personnel.

Related resources: FANUC CNC circuit boards and FANUC CNC board repair services.