Fanuc 11m Parameter List __exclusive__

The Fanuc 11M control system uses a wide range of parameters to define machine behavior, axis limits, and communication settings. Managing these requires enabling Parameter Write Enable (PWE) first. How to Enable Parameter Writing

Before modifying any parameters, you must put the machine in MDI mode and unlock the memory:

Turn the Memory Protect key/switch to the off (unlocked) position.

Press the SETTING function key to reach the "SETTING (HANDY)" page.

Locate parameter 8000 (PWE) and change the far-right bit (Bit #0) from 0 to 1.

The control will trigger a Parameter Write Enable alarm; this is normal and expected while PWE is active. Essential Communication Parameters (RS232)

These parameters are critical for connecting your Fanuc 11M to a PC for DNC or program transfer.

Parameter 5001/5002: Device Select (1 for MDI/CRT port, 2 for Master PCB port).

Parameter 5110: Device type (typically set to 3 to use DC codes/software handshaking).

Parameter 5111: Stop bits (1 = 1 stop bit; 2 = 2 stop bits).

Parameter 5112: Baud rate selection (9 = 2400, 10 = 4800, 11 = 9600). General Machine & Axis Parameters

Commonly used parameters for motion and spindle control include:

Parameter 1005 Bit #0: If set to 1, allows the machine to run in automatic mode without homing (No-homing operation).

Parameter 1241: Coordinate value of the 2nd reference point.

Parameter 1320 / 1321: Stored stroke limits (Soft overtravel limits). Temporary adjustment to 99999999 can suppress overtravel alarms during maintenance. Parameter 1420: Rapid Traverse Rate for each axis. Parameter 3741–3743: Maximum spindle speed limits.

Parameter 4077: Spindle orientation position adjustment (useful for tool changes).

Parameter 6700 Bit #0: Part counting logic (0 = count on M30/M02; 1 = count on custom M-code). Option Parameters (9000 Series)

These parameters enable specific software features. Warning: These should only be changed if you are certain of the machine's configuration. 9102 Bit #1: Inch/Metric selection. fanuc 11m parameter list

9110 Bit #0/1: Sets program storage capacity (e.g., 100 or 200 programs). 9111 Bit #0: Macro B option. 9116 Bit #0: Enables the Part Counter feature.

Note: Always perform a full backup of all parameters (NC and PC/PMC) before making changes, as Fanuc may no longer provide data for these legacy controls. You can use the Fanuc 11M Configuration Guide for detailed hardware setup.

This feature guide covers the essential parameters and procedures for the Fanuc 11M CNC control, focusing on communication setup, option unlocking, and memory restoration. Essential Communication Parameters (RS232)

To transfer programs or backup data, the communication settings must match your PC's software. These are typically found under the Service page. Typical Value 0000 ISO Code (Bit 1) 1 (ISO) 0020 I/O Channel (Foreground Input) 1 5110 Device Type (RS232) 3 (Use DC codes) 5111 1 (Standard) 5112 10 (4800) or 11 (9600) Key Operational Parameters

These parameters control the machine's behavior and basic functions.

1420: Rapid Traverse Rate for each axis (set using "P" for axis and "R" for value).

3204: Program Protection (Bit 0/4) - Unlocks 8000 and 9000 series programs for editing.

4077: Spindle Orientation adjustment (used for aligning the spindle during tool changes).

8000: Parameter Write Enable (PWE) - Set Bit 0 to 1 in MDI mode to allow parameter changes. Option Parameters (9000 Series)

Option parameters enable specific software features. For the Fanuc 11M, these are often entered in hexadecimal format during a memory restore.

9101: Bit 0 = Single Direction Positioning; Bit 1 = Imaginary Coordinate Offset. 9102: Bit 0 = G10 Data Setting; Bit 1 = Inch/Metric Switch. 9111: Bit 0 = Custom Macro B. Backup and Restore Procedure

A full backup is critical because Fanuc no longer supports data this old, and lost options may require repurchasing from the manufacturer. fanuc 11m parameters - Industry Arena

Note: The CNC will trigger a P/S alarm 100 once PWE is active; this is normal and expected. RS232 Communication Settings (DNC/PC Link)

These settings are critical for transferring programs via a serial cable. FactoryWiz Monitoring Description Set bit #0 to Device selection (typically port 1) Device type (DC codes used) Stop bits (usually 1 or 2) 9, 10, or 11 : 9 = 2400, 10 = 4800, 11 = 9600 Common 900-Series Option Parameters

These parameters enable specific software features. Exercise extreme caution, as these vary by machine manufacturer. 9101 bit 0 : Single Direction Positioning. 9102 bit 0 : G10 Program Input of Offset. 9102 bit 1 : Inch/Metric Conversion. 9110 bit 1 : 200 Programs Memory. 9111 bit 0 : Custom Macro B. 9111 bit 2 : Rigid Tapping. 9116 bit 0 : Part Counter. Maintenance & Servo Basics Backlash Compensation

: Typically found in the 1800-2000 range, though specific values like

are often used for absolute encoder setup (Bit #5 = 1 for absolute). Soft Overtravel The Fanuc 11M control system uses a wide

: Suppress alarms by setting limits to maximum values in parameters (positive) or (negative). Spindle Orientation : Parameter is used to adjust the tool-change position. backup your parameters

before making changes. You can do this by selecting EDIT mode, pressing the key, and using the FactoryWiz Monitoring wiring diagram

for the RS232 cable to connect your Fanuc 11M to a modern PC? Fanuc 11M Configuration Document - FactoryWiz

The Fanuc 11M (a classic CNC control from the mid-1980s) uses a parameter system that is more advanced than the 6M but less structured than the 0-series or 16/18 series. The "feature" of its parameter list is that parameters are primarily 4-digit numbers (0000 to 9999, though many are unused), organized into four distinct functional groups.

Here is the feature breakdown of the Fanuc 11M parameter list:

Understanding Bit vs. Digit Parameters

The Fanuc 11M uses three types of parameters:

  1. Bit Parameters (e.g., 0000): Each of the 8 bits controls a specific ON/OFF function. You will see them displayed as 00000000. Changing a single bit without a list is guesswork.
  2. Digit Parameters (e.g., 0012): These use decimal values (e.g., 3, 10, 125).
  3. Word Parameters (e.g., 0160): These can hold values from 0 to 9999 or higher.

How to Input Parameters on FANUC 11M

  1. Enter MDI Mode: Set the mode switch to MDI.
  2. Parameter Write Enable:
    • Usually located on the motherboard or via a parameter bit (Parameter 0000, Bit 7). You may need to flip a toggle switch on the electrical cabinet door or set PWE=1 on the screen if available.
    • If the machine alarms when you try to edit, PWE is not enabled.
  3. Select Parameter Screen:
    • Press the PRM (Parameter) button on the keypad.
  4. Search: Type the parameter number (e.g., 700) and press INPUT or SEARCH.
  5. Edit Data: Type the new value and press INPUT.
  6. Lock System: Turn Parameter Write Enable OFF (PWE=0) and cycle power.

8. Troubleshooting Quick Table

| Symptom | Check Parameter | |---------|----------------| | Axis moves wrong direction | 0012 bits | | No spindle speed display | 0500, 0510 | | RS-232 not communicating | 0001, 0020, 0021 | | Cannot change parameters | 8000.0 (PWE=1) | | Tool offset not applying | 0600–0640 format bits |

End of Reference Sheet – Print this and keep near the machine electrical cabinet.
Always verify exact values against your machine’s original FANUC 11M blue book.

control system uses specific parameter ranges for its operational settings, communication, and machine-specific options. To modify these, you must first enable Parameter Write Enable (PWE) Squarespace Enabling Parameter Write (PWE) Select MDI Mode Emergency Stop Enable PWE soft key to reach the SETTING (HANDY) Parameter 8000 Change bit . You will see a

alarm; this is normal and indicates write access is enabled. Access Parameters : Press the soft key, then the soft key to view and edit the main parameter list. Restore PWE : After changes, set Parameter 8000 Squarespace Communication Parameters (RS-232/I/O) These are typically found starting at Parameter 5110 for Reader/Puncher interface settings: Squarespace Device Type (Specifies reader/puncher specifications, e.g., for standard control codes). (Usually set to for Fanuc controls). (Values correspond to specific speeds: for 9600). Squarespace Critical System Parameters 2nd Reference Point (Coordinate value in machine coordinates). 3rd Reference Point Rapid Traverse Rate for each axis. Backlash Compensation (Slow/general compensation). Rapid Backlash Compensation Spindle Orientation position adjustment. 6700#0 (PCM) Part Counting : Specify custom for part counting (if Option Parameters (9000 Series) Fanuc 10M-11M Communications Parameters - Squarespace

Read all the way through before performing ANY changes! 1. Select “MDI” mode of operation. 2. Flip the “Memory Protect” switch up, Squarespace Fanuc 10, 11, 12, & 15 RS-232 Parameters

The Fanuc 11M parameter list consists of thousands of configuration points that define machine behavior, axis control, and communication interfaces. These parameters are typically managed through the MDI (Manual Data Input) panel and require a specific sequence to enable editing. Core Parameter Categories

The Fanuc 11M parameters are organized by data number ranges based on their function: Data Number Range Description 0000 – 0099

Basic Settings: Metric/inch system, axis names, and display units. 0100 – 0199 Timers: Dwell times and internal operation delays. 1000 – 1199

Axis Control: Reference position return, travel limits, and axis definitions. 1400 – 1599 Feedrate: Rapid traverse rates and cutting feed limits. 1800 – 1999

Servo Control: Gain settings and backlash compensation (e.g., #1851 for slow, #1852 for fast). 5000 – 5199

Communication: RS-232 settings like baud rate, stop bits, and device types. 5600 – 5799 Bit Parameters (e

Spindle Control: Spindle speed limits and gear shifting parameters. 9100 – 9125

Option Parameters: Features like Macro B, part counters, and memory expansion. Commonly Used Parameters

Parameter #8000 (PWE): This is the Parameter Write Enable bit. Setting bit #0 to 1 allows you to edit other parameters. Parameter #5110–5112: Essential for RS-232 Communication: 5110: Device type (usually 1 or 3). 5111: Stop bits (usually 1). 5112: Baud rate (e.g., 10 for 4800, 11 for 9600).

Parameter #1420: Controls the Rapid Traverse Rate for each axis. How to Access and Edit Parameters How to Enable Parameter Write Enable (PWE) on a Fanuc CNC

The Fanuc 11M parameter list contains thousands of settings that control everything from basic machine axes to complex communication protocols. Because a full list is too large to display here, the most critical "common" parameters are categorized below. Critical Setup Parameters

0000–0030 (Setting Parameters): These include PWE (Parameter Write Enable), which must be set to 1 to change any other parameters. You can find instructions on enabling PWE on MachineMetrics.

1000–1100 (Axis Control): These define the number of axes, axis names (X, Y, Z), and whether an axis is linear or rotary.

1240–1241 (Reference Points): These store the machine coordinate values for the first and second reference points (Home positions). CNCMakers notes that 1240 is for the first point and 1241 for the second. I/O and Communication (RS-232)

To transfer programs, these parameters must match your PC settings:

5001: I/O device selection (0 for RS-232, 1 for Bubble Memory). 5110: Device type (usually set to 3). 5111: Stop bits (typically 2). 5112: Baud rate (e.g., 10 for 4800, 11 for 9600). Spindle and Tooling

3741–3743: These parameters set the maximum spindle speeds for different gear ranges. According to CNCMakers, you can modify these directly to limit RPM.

6700–6710: Used for part counting. Setting 6700#0 to 0 enables counting on M30/M02, as detailed by FactoryWiz. Diagnostic Monitoring

If the machine errors out, check the Diagnostics screen (DGN):

DGN 720: Indicates an overload (OVL) alarm. KFASLLC explains this often points to thermal issues or broken cables. Important Note on Backups

The Fanuc 11M uses a battery to maintain these parameters. If the battery dies while the power is off, all parameters are lost. It is highly recommended to print a hard copy of your specific machine's parameter list or save it to a PC via RS-232.

Are you trying to fix a specific alarm or set up a new communication link?

Parameter Types

The Fanuc 11M parameter list consists of several types:

  • System Parameters: Configure basic system functions, such as axis count, spindle settings, and feed rates.
  • Machine Parameters: Define machine capabilities, such as maximum travel distances, rapid traverse rates, and tool changer settings.
  • Program Parameters: Control program execution, including program numbering, sequence, and interruption settings.
  • Input/Output Parameters: Configure input/output interfaces, such as digital input/output ports and communication settings.