A87L-0001-0173#96MB is a CNC system software (firmware) package used in controllers manufactured by FANUC.
📌 Description
-
Part Number: A87L-0001-0173#96MB
-
Type: CNC system program / firmware
-
Category: FANUC system control software
-
Installed In: FANUC CNC control units (commonly 0i / 16i / 18i series depending on configuration)
⚙️ Main Function
This software is the operating system of the CNC controller. It is responsible for:
-
Interpreting and executing G-code programs
-
Axis interpolation and motion control
-
Servo and spindle communication
-
Machine logic and alarm management
-
Operator interface and diagnostics
🧩 Meaning of the Code
-
A87L → FANUC software/system program classification
-
0001-0173 → Specific CNC software package
-
#96MB → Version / option configuration
-
M → Milling machine configuration
-
B → Software revision / option set
-
96 → Software level / capacity version
-
🧠 Summary
A87L-0001-0173#96MB = FANUC CNC system control firmware used inside the CNC control unit to operate the machine and execute machining programs.
✅ You previously listed several similar software codes. These are different software versions of the same base package:
| Software Code | Type |
|---|---|
| A87L-0001-0173#32MBA | Earlier / smaller configuration |
| A87L-0001-0173#48MBA | Mid-level configuration |
| A87L-0001-0173#64MB | Higher version |
| A87L-0001-0173#96MB | Newer / expanded configuration |
If you want, I can also explain how to read FANUC software option codes (MBA, MB, TB, etc.), which helps identify machine type and options instantly.


