FANUC officially provides libraries for C/C++ and .NET. However, Python has emerged as the preferred wrapper for three reasons:
: You can automate the extraction of part counts and cycle times directly into Excel or SQL databases, eliminating manual logging. MindSphere documentation Challenges and Tips Driver for FANUC CNC (FOCAS)? - Ignition fanuc focas python
Supports modern CNCs and newer operating systems like Windows 10 and 11. Machine Metrics Python Integration with FOCAS Because FOCAS is primarily a set of C-based files (like fwlib32.dll FANUC officially provides libraries for C/C++ and
: The ctypes or cffi libraries in Python allow you to call functions directly from the FOCAS Fwlib32.dll or Fwlib64.dll . - Ignition Supports modern CNCs and newer operating
if ret == 0: # status.run: 0=Reset, 1=Stop, 2=Start(Hold), 3=Start run_status = "Running" if status.run == 3 else "Stopped/Idle" print(f"Machine Status: run_status") else: print(f"Failed to read status. Error: ret")
# Load FOCAS2 DLL focas = ctypes.CDLL("focas1.dll") # or focas2.dll # typedefs UDINT = ctypes.c_uint32 SHORT = ctypes.c_short # example: read system info (CNC alarm or macro programs vary by machine) cnc_getinfo = focas.cnc_getinfo # placeholder function name # set argtypes/restype per FOCAS docs before calling # cnc_getinfo.argtypes = [...] # cnc_getinfo.restype = SHORT
cnc = FocasConnection("10.0.0.55") cnc.connect()