Provided by: linuxcnc-uspace_2.9.1-2ubuntu1_amd64
NAME
limit_axis - Dynamic range based axis limits
SYNOPSIS
loadrt limit_axis [count=N|names=name1[,name2...]] [personality=P,P,...]
DESCRIPTION
limit_axis.c Limit axis to certain limits at varying inputs For example on a spindle with C rotation, to avoid hitting a gantry when the height is above Z-10 - Use Z axis as feedback - Use 2 ranges (0,-10) (-10, -40) - When Z is above 10, C rotation is limited to range 0 - When Z is below 10, C rotation is limited to range 1 Usage: loadrt limit_axis count=3 personality=2,3,2 or loadrt limit_axis names=limit_x,limit_y,limit_z personality=2,3,2 The "personality" argument defines how many ranges are supported by each instance. (Note that no spaces can be used in the names= and personality= parameters) Caveats - Searches ranges from 0 to 9 and will take the first range that matches - Ranges are inclusive min_range <= feedback <= max_range - Max can not be less than minimum for any group - Sticky indicates, to not check other ranges if the feedback is still in the current range - Enable allows for a range to be turned on/off, for cases such as avoiding a tool changer, but allowing sometimes
FUNCTIONS
limit-axis.N (requires a floating-point thread)
PINS
limit-axis.N.error-no-range bit out error pin indicating that no range matches the fb limit-axis.N.min-output float out Minimum limit output limit-axis.N.max-output float out Maximum limit output limit-axis.N.fb float in Feedback pin, the value of this pin determines which range is active limit-axis.N.current-range u32 out Indicates which range is currently active limit-axis.N.min-limit-MM float in (MM=00..personality) The array of minimum limits to select from limit-axis.N.max-limit-MM float in (MM=00..personality) The array of macimum limits limit-axis.N.min-range-MM float in (MM=00..personality) Defines the range of values with which the fb is compared to set the range limit-axis.N.max-range-MM float in (MM=00..personality) Defines the range of values with which the fb is compared to set the range limit-axis.N.enable-MM bit in (MM=00..personality) Used to enable and disable a specific range limit-axis.N.sticky-MM bit in (MM=00..personality) Used to make specific range 'sticky' or not limit-axis.N.error-range-MM bit out (MM=00..personality) (default: 1) Error bit indicating that the fb pin falls outside all ranges limit-axis.N.error-limit-MM bit out (MM=00..personality) (default: 1) Error bit indicating that the max limit is not larger than the min limit
AUTHOR
Chad Woitas
LICENSE
GPL