A higher-level library specifically designed for interfacing with various CNC machines, including FANUC, to fetch machine state data. pyfanuc · PyPI
def read_with_retry(func, max_retries=3, delay=1): for attempt in range(max_retries): ret = func() if ret == 0: return ret time.sleep(delay) return ret
def connect_fanuc(ip_address, port=8193): """ Establish a handle to the CNC. Default FOCAS port is 8193. """ h = ctypes.c_short() cnc_ip = ip_address.encode('ascii') + f":port".encode('ascii') fanuc focas python
handle = connect_fanuc(CNC_IP) if handle: while True: status = get_status(handle) print(f"Machine Status: status") time.sleep(1)
import chattertools as ch import time
By logging spindle load over time, Python can detect a slow increase in friction (e.g., a worn bearing) before the machine alarms out.
import ctypes # Load the FANUC FOCAS 64-bit DLL focas = ctypes.WinDLL("./Fwlib64.dll") # Define argument and return types for the connection function focas.cnc_allclibhndl3.argtypes = [ ctypes.c_char_p, # IP Address ctypes.c_ushort, # Port (usually 8193) ctypes.c_long, # Timeout (seconds) ctypes.POINTER(ctypes.c_ushort) # Pointer to store the Handle ] focas.cnc_allclibhndl3.restype = ctypes.c_short # Return code def connect_cnc(ip_address, port=8193, timeout=10): handle = ctypes.c_ushort(0) ip_bytes = ip_address.encode('utf-8') # Attempt connection result = focas.cnc_allclibhndl3(ip_bytes, port, timeout, ctypes.byref(handle)) if result == 0: print(f"Successfully connected to CNC at ip_address. Handle: handle.value") return handle.value else: print(f"Connection failed with error code: result") return None def disconnect_cnc(handle): # Free the library handle allocation focas.cnc_freelibhndl(handle) print("Disconnected from CNC.") # Example Usage cnc_handle = connect_cnc("192.168.1.100") if cnc_handle: disconnect_cnc(cnc_handle) Use code with caution. Reading Critical Machine Data """ h = ctypes
You will need the Fwlib32.dll or Fwlib64.dll file provided by FANUC to act as the communication driver. Top Python Libraries for FANUC FOCAS