Fanuc Focas 2
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
FOCAS 2 provides a library of functions for reading and writing machine data, which is essential for Industry 4.0 and IIoT (Industrial Internet of Things) implementations. fanuc focas 2
The Architecture: How FOCAS 2 Works (Technically)
For the developers and engineers in the room, understanding the stack is vital. FANUC FOCAS 2 (Fanuc Open CNC API Specifications)
- Set IP Address, Subnet Mask, Router.
- Go to "FOCAS" settings. Define the PC's IP address that is allowed to connect.
- Ensure Port Number matches your software (Default: 8193).
) to predict servo system errors before they lead to failure. Digital Twins: Set IP Address, Subnet Mask, Router
4. Write Access Restrictions
- Writing to certain areas (macro variables, programs) requires enabling "Remote" mode on the CNC – operators may override or disable this.
- No built‑in conflict detection if HMI or ladder logic changes the same variable.
- CPU: Quad-core processor (up to 4 CPU cores)
- Memory: 4 GB RAM, 128 GB storage
- Display: 15-inch LCD display (1280 x 1024 pixels)
- Axes Control: Up to 32 axes of control
- Interpolation: 4-axis simultaneous interpolation
- Communication: Various communication protocols, including Ethernet, USB, and RS-232
- FOCAS 1 (Obsolete): Relied on the older HSSB (High-Speed Serial Bus) hardware connection, requiring a dedicated board in the PC. It was fast but inflexible.
- FOCAS 2 (Standard): Uses standard Ethernet. No special hardware is needed—only a network cable and correctly configured CNC Ethernet parameters. It is slower than HSSB but far more practical, cheaper, and easier to deploy across many machines.