Fanuc 9000 Parameters List Access

Fanuc 9000 Parameters List — Targeted Treatise

Overview

The Fanuc 9000 series (commonly associated with Fanuc Series 16/18/21 controls and modernized as parts of the broader Fanuc family) exposes a large, structured set of parameters that control machine kinematics, servo tuning, I/O mapping, safety interlocks, coordinate systems, and operator-interface behaviour. Parameters are the definitive method to configure, tune, and troubleshoot CNC machines — they define limits, logical behavior, and machine identity. Proper parameter management is essential for safe, repeatable, and high-performance machining.

Example: Enabling Custom Macro B on FANUC 0i-MD

  1. Press SYSTEM key → PARAM soft key.
  2. Input 9001 and press NO.SRH.
  3. Cursor to bit 1 (second from right).
  4. Change 9001.1 from 0 to 1.
  5. Power cycle control.

Critical Note on Parameter 9000 #3 (Custom Macro B)

The single most requested Fanuc 9000 parameter is bit 3 of 9000. If this is set to 0, your machine cannot use #variables (e.g., #100=5), cannot loop with WHILE/DO, and cannot use G65/G66. If set to 1, you unlock parametric programming. fanuc 9000 parameters list

What Happens If You Change the Wrong 9000 Parameter?

Because machine tool builders often remap or lock 9000 parameters, changing them arbitrarily can cause: Fanuc 9000 Parameters List — Targeted Treatise Overview

Final Checklist Before Editing 9000 Parameters

  1. ✅ Do you have the original machine builder’s parameter list?
  2. ✅ Have you performed a full SRAM backup (not just parameters)?
  3. ✅ Is the machine in an emergency-stop condition?
  4. ✅ Have you recorded the original value of the parameter you are changing?
  5. ✅ Do you understand the safety implications (axes moving differently)?

Below are common 9000-series parameters found across various Fanuc models, particularly for the Fanuc 10/11/12/15M and 18MC systems: Parameter No. Bit / Setting Function Description 9100 Expansion of Simultaneous Axis 9100 Helical Interpolation (G02, G03) 9100 Skip Function (G31) 9102 Inch/Metric Conversion 9102 Canned Cycles (Drilling/Tapping) 9103 Coordinate System Rotation 9920 Fixed Cycles 9921 Program Storage Expansion (40m to 640m) 9922 Constant Surface Speed Control 9922 Custom Macro A 9925 Look-Ahead Control 9926 Automatic Tool Length Measurement Protecting and Editing 9000-Series Programs Press SYSTEM key → PARAM soft key

Parameter 0010 bit 4: Set to 0 to permit editing of O9000–O9999 programs.

Why Is There No Single "Universal" Fanuc 9000 Parameters List?

Searching for a definitive "Fanuc 9000 parameters list" is challenging because Fanuc does not publish a universal list. Here is why: