Below are the most frequently referenced parameters for configuration, data transfer, and machine tuning. 1. RS-232 Communication & I/O Settings
Use this list as a reference guide only. CNC parameters control machine-specific functions (axis travel limits, spindle speeds, tool changers). Entering incorrect values can cause the machine to crash, lose reference points, or behave erratically. Always back up current parameters before making changes.
Press the key on the control panel (the screen should display an "INPUT" or "READ" blinking indicator). Transmit the parameter file from your PC DNC software. fanuc 11m parameter list
Baud Rate Selection for I/O Channel 2 (See Baud Rate table below) Baud Rate Selection Values (For Parameters 5111 & 5112): 2400 Baud 11: 4800 Baud 12: 9600 Baud Axis Control & Geometry Parameters
Many operational issues on an 11M can be traced back to a simple parameter oversight. Below are the most frequently referenced parameters for
The text file containing parameters 0000–8999 will stream to your computer.
| Parameter | Description | Typical Value | Notes | | :--- | :--- | :--- | :--- | | | Communication Code : Defines the character format used for output (Punch Code). | 0 | Set to 0 for ISO (ASCII) code, 1 for EIA (rarely used). | | 0020 / 0022 | Input Device : Specifies the channel for reading data. | 1 or 2 | 1 is often the main port (CD4A), 2 is secondary (CD4B). | | 0021 / 0023 | Output Device : Specifies the channel for writing/punching data. | 1 or 2 | Set to match the physical connection used for your PC. | | 5001 / 5002 | Port Assignment : Links the selected device number to a physical hardware port. | 1 | Typically set to 1 to activate the main RS-232 port. | | TV CHECK | Vertical Parity Check : A simple error-checking method. | 0 | This should almost always be set to 0 (OFF) as most modern PC software does not support it. | Press the key on the control panel (the
Below are the most critical parameters required for daily operation, data transfer, and machine tuning. RS-232 Communication & I/O Parameters
Set to 1 or 2 depending on which physical Honda connector on the master board your RS-232 cable is wired to. Specification of the I/O Device (Port 1). Set to 3 for standard RS-232 serial communication.
Connecting an 11M to a modern PC for DNC (Drip Feeding) or file transfer is a common task. The correct communication parameters must be set on both the CNC and the PC. The table below provides a standard starting point for these settings.
The Fanuc 11M is a legendary CNC control from the mid-1980s to early 1990s, widely regarded as one of the most robust and reliable platforms for milling machines, machining centers, and routers. Despite its age, thousands of these controls are still in daily operation across job shops and production facilities worldwide. However, the Achilles' heel of any vintage CNC is —specifically, its parameters.