Fanuc Focas Python — Quick & Validated

ret = fwlib.cnc_allclibhndl3(ip_bytes, port, timeout, ctypes.byref(handle))

# Get active alarms class ODBALM(ctypes.Structure): _fields_ = [ ("alm_no", ctypes.c_short * 8), ("alm_msg", ctypes.c_char * 8 * 32) ] fanuc focas python

import ctypes from ctypes import ByRef, Structure, c_short, c_long, c_float # 1. Load the FOCAS Library # Ensure Fwlib64.dll and its dependent dependencies (e.g., fwlibe64.dll) are in your script directory focas = ctypes.WinDLL("./Fwlib64.dll") # 2. Define FOCAS C-Structures in Python class ODBAXIS(Structure): _fields_ = [ ("dummy", c_short), ("type", c_short), ("data", c_long * 4) # Array for up to 4 axes ] # 3. Establish Connection cnc_ip = b"1192.168.1.100" # Must be a byte string cnc_port = 8193 timeout = 10 lib_handle = c_short(0) # Call cnc_allclibhndl3 to get a handle ret = focas.cnc_allclibhndl3(cnc_ip, cnc_port, timeout, ByRef(lib_handle)) if ret == 0: print(f"Successfully connected! Handle ID: lib_handle.value") # 4. Read Absolute Position Data axis_num = -1 # -1 reads all axes data_length = 4 + 4 * 4 # Size calculation based on FOCAS documentation position_data = ODBAXIS() pos_ret = focas.cnc_absolute(lib_handle, axis_num, data_length, ByRef(position_data)) if pos_ret == 0: # FANUC integers often omit the decimal point. # Divide by 1000 or 10000 depending on machine metric/inch settings. x_pos = position_data.data[0] / 1000.0 y_pos = position_data.data[1] / 1000.0 z_pos = position_data.data[2] / 1000.0 print(f"X Axis Position: x_pos") print(f"Y Axis Position: y_pos") print(f"Z Axis Position: z_pos") else: print(f"Failed to read position data. Error code: pos_ret") # 5. Free the Library Handle focas.cnc_freelibhndl(lib_handle) print("Disconnected from CNC.") else: print(f"Connection failed. FOCAS Error Code: ret") Use code with caution. Open-Source Python Wrappers ret = fwlib

pip install pyfanuc from pyfanuc import Fanuc Establish Connection cnc_ip = b"1192

def get_cnc_mode(handle): # ODBMODE structure for mode data class ODBMODE(ctypes.Structure): fields = [ ("mode", ctypes.c_short), # Operation mode ("i_mode", ctypes.c_short), # Input mode ("info", ctypes.c_short * 4), # Additional info ]