xhc-hb04-layout2

18 buttons:

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|RESET   |Stop       |                |
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|GotoZero|Start/Pause|Rewind |Probe-Z |
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|Spindle |  =1/2     |  =0   |Safe-Z  |
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|GotoHome|Macro-1    |Macro-2|Macro-3 |
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|STEP    |Mode       |Macro-6|Macro-7 |
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|                                Off  |
|                                  X  |
|                                  Y  |
|                 Rotary ------->  Z  |
|                 Switch           A  |
|                             Spindle |
|                                Feed |
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Button codes defined in xhc-hb04-layout2.cfg

The STEP button is used to change the wheel multiplier and can also be connected to a pin.

The Start/Pause button is reserved to control halui.program.run,pause,resume.

The other buttons can be connected to hal pins -- typically halui provided pins.  MDI commands can be executed using halui.mdi-command-nn pins defined in the ini file with [HALUI]MDI_COMMAND= entries.

The rotary switch selects the axis, spindle, or feedoverride for control by the jogwheel.

The switch positions (xyza) can be defined to any available axis (xyzc for instance).