# Modbus configuration for spindle control via RS-485 (Half Duplex)
# This file defines the Modbus registers for controlling spindle speed, direction, and status.

[SPINDLE]
register=40001          # Register for spindle speed command
scale=1000             # Scaling factor for RPM (e.g., 1 unit = 1 RPM)
min=0                  # Minimum spindle speed (RPM)
max=24000              # Maximum spindle speed (RPM)

[DIRECTION]
register=40002         # Register for spindle direction control
bit-type=coil          # Direction control is a single-bit coil register
reverse=1              # Set to 1 for reverse direction
forward=0              # Set to 0 for forward direction

[ENABLE]
register=40003         # Register for enabling/disabling the spindle
bit-type=coil          # Enable/disable control is a single-bit coil register
enable=1               # Set to 1 to enable the spindle
disable=0              # Set to 0 to disable the spindle

[FAULT]
register=40004         # Register for spindle fault status
bit-type=coil          # Fault status is a single-bit coil register
fault=1                # Set to 1 when a fault is present
no-fault=0             # Set to 0 when no fault is present

# Notes:
# Ensure the Modbus configuration matches the spindle drive's documentation.
# Adjust the register numbers and scaling factors according to your VFD or spindle drive setup.
# This file should be placed in the same directory as your LinuxCNC configuration.