Fanuc Focas 2 May 2026

FANUC FOCAS 2 (Fanuc Open CNC API Specifications) is a powerful application programming interface (API) that allows computer software to communicate directly with FANUC CNC controllers. It acts as a bridge, enabling real-time data collection and remote machine management by exposing the controller's internal data to external Windows-based applications. Core Capabilities of FOCAS 2

Machine Monitoring: It provides real-time access to running status, feed rates, spindle speed, motor data, and active alarms. fanuc focas 2

Beyond writing, it reads absolute/relative/machine positions, remaining distance to go, actual feedrate, tool life management data, and spindle data. Key Functions for this Feature: cnc_rdzofs : Read work zero offset value. cnc_wrfixofs : Write fixture offset values. cnc_wrmacror2 : Write custom macro variables. cnc_wrpdf_line : Write data to the CNC program. Application Scenario: FANUC FOCAS 2 (Fanuc Open CNC API Specifications)

The protocol allows developers to access almost any piece of information residing within the CNC control. Key capabilities include: Machine Status Monitoring: Real-time execution status (Run, Stop, Alarm). Current coordinates (Absolute, Relative, Machine). Spindle speed and feed rates. Program Management: Uploading and downloading G-code files. Searching for specific program numbers. Deleting or renaming programs in memory. Tool and Offset Data: Reading and writing tool wear/geometry offsets. Managing tool life data. Diagnostics and Alarms: Retrieving active alarm messages and history. Reading PMC (Programmable Machine Control) signals (I/O). Implementation Requirements cnc_wrmacror2 : Write custom macro variables

is the modern standard tailored for Ethernet-capable controls. It supports a wider range of hardware, including the ubiquitous 0i-F/0i-MF series and the high-performance 30i/31i/32i families. The technical implementation of FOCAS 2 relies on a set of 32-bit Dynamic Link Libraries (DLLs) FWLIB32.DLL FWLIBE1.DLL