iocontrol - interacts with HAL or G-code in non-realtime
[EMCIO]
EMCIO = io
I/O control handles I/O tasks like coolant, toolchange and E-stop. The signals are turned on and off in non-realtime with G-code or in the case of E-stop in HAL.
The following pins are created by the non-realtime IO controller, usually found in $LINUXCNC_HOME/bin/io
iocontrol is a non-realtime process - if you have strict timing requirements or simply need more I/O, consider using the realtime synchronized I/O provided by motion(9) instead.
The INI file is searched for in the directory from which halcmd was run, unless an absolute path is specified.
iocontrol.0.coolant-flood
(Bit, Out) TRUE when flood coolant is requested.
iocontrol.0.coolant-mist
(Bit, Out) TRUE when mist coolant is requested.
iocontrol.0.emc-enable-in
(Bit, In) Should be driven FALSE when an external E-stop condition exists.
iocontrol.0.tool-change
(Bit, Out) TRUE when a tool change is requested.
iocontrol.0.tool-changed
(Bit, In) Should be driven TRUE when a tool change is completed.
iocontrol.0.tool-number
(s32, Out) Current tool number.
iocontrol.0.tool-prep-number
(s32, Out) The number of the next tool, from the RS274NGC T-word.
iocontrol.0.tool-prep-pocket
(s32, Out) This is the pocket number (location in the tool storage mechanism) of the tool requested by the most recent T-word.
iocontrol.0.tool-prepare
(Bit, Out) TRUE when a Tn tool prepare is requested.
iocontrol.0.tool-prepared
(Bit, In) Should be driven TRUE when a tool prepare is completed.
iocontrol.0.user-enable-out
(Bit, Out) FALSE when an internal E-stop condition exists.
iocontrol.0.user-request-enable
(Bit, Out) TRUE when the user has requested that E-stop be cleared.
iocontrol.0.tool-prep-index
(s32, Out) IO’s internal array index of the prepped tool requested by the most recent T-word. 0 if no tool is prepped. On Random toolchanger machines this is the tool’s pocket number (ie, the same as the tool-prep-pocket pin), on Non-random toolchanger machines this is a small integer corresponding to the tool’s location in the internal representation of the tool table. This parameter returns to 0 after a successful tool change (M6).
io(1), <io.1.html> iov2(1), <iov2.1.html> motion(9) <../man9/motion.9.html>
Report bugs at <https://github.com/LinuxCNC/linuxcnc/issues>
Derived from a work by Fred Proctor & Will Shackleford.
Copyright
© 2004 the LinuxCNC project.
This is free software; see the source for copying
conditions. There is NO warranty; not even for
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.