Fanuc Focas Python Jun 2026

For more information on macro reading, consult the cnc_rdmacror2 documentation.

# Read a part program program = client.get_part_program("PROGRAM_1")

Fanuc FOCAS functions are bundled into runtime libraries provided by Fanuc.

1 : (Data attribute error; requesting an axis that doesn't exist) Open-Source Python Alternatives fanuc focas python

The core connection function is cnc_allclibhndl3 . We must define the argument types so ctypes knows how to convert Python types to C types.

def safe_read_axis(controller, axis, default=None): try: return controller.read_axis(axis, 0) except Exception as e: print(f"Error reading axis axis: e") return default

import asyncio import websockets from pyfanuc import FocasConnection For more information on macro reading, consult the

If you are looking to get started, install the pyfanuc library and begin by reading simple macro variables or axis positions to get a feel for the data available.

# Print the results print(results)

Do not request data every millisecond. A 100ms - 500ms interval is usually sufficient for monitoring. We must define the argument types so ctypes

# Connect to the machine client = focas.Client(machine_ip, machine_port) client.connect()

if ret == 0: # Mode codes: 0=MEM, 1=MDI, 2=JOG, 3=HANDLE, etc. mode_names = 0: "MEM", 1: "MDI", 2: "JOG", 3: "HANDLE", 4: "EDIT" return mode_names.get(mode_data.mode, f"UNKNOWN(mode_data.mode)") return "ERROR"

if ret == 0: print("Connection Successful!") else: print(f"Connection Failed. Error Code: ret") exit()

# Execute a cycle cnc.execute_cycle('G81', 'R2', 'Z-10')