FANUC Fwlib 4.3

FANUC Fwlib (FOCAS2 Library) by FANUC

FANUC Fwlib is FANUC’s official software library for programmatic access to FANUC CNC controls via the FOCAS interface. It provides a comprehensive C-style API that lets developers monitor machine status, read and write parameters and macro variables, transfer NC programs, and interact with PMC I/O. Connections can be made over Ethernet (FOCAS2/TCP-IP) or via HSSB, enabling reliable integration with custom applications, HMIs, data-collection systems, and diagnostic tools.

Key capabilities

• Real-time CNC monitoring: axis/spindle positions and speeds, execution status, overrides, alarms, histories.
• Program management: upload/download, directory operations, memory management, and remote execution support.
• Parameters and variables: read/write system parameters, offsets, tool data, and macro variables.
• PMC access: read/write PMC signals and ranges for automation and interlocks.
• Connectivity options: Ethernet (FOCAS2 over TCP/IP, commonly port 8193) and HSSB.
• Development assets: header files and sample code for Windows; widely used with C/C++ and commonly wrapped for .NET and other languages.

Typical uses

• Machine monitoring and data acquisition (OEE, dashboards, analytics).
• Custom HMIs and supervisory control.
• MTConnect/OPC gateways and enterprise integrations.
• Remote diagnostics and service tools.

Requirements and notes

• A compatible FANUC CNC with the FOCAS option enabled (licensed).
• Windows development environment; many deployments target 32-bit clients, though availability may vary by control and library version.
• Proprietary software by FANUC; consult your FANUC representative for licensing, supported CNC series, and the correct library package (e.g., Ethernet vs. HSSB variants).

This description has been proofread for clarity and accuracy.

FANUC Fwlib is developed by FANUC. The most popular version of this product among our users is 4.3.

You can check CIMCO DNC-Max Client, Bmp2Cnc, SimplyCam and other related programs like FANUC PC FAPT at the "download" section.