pyVCP button to control generic digital out

ini file to enter postion

[HALUI]
MDI_COMMAND = G10 L20 P0 X83 ( Set X to 83.000)
MDI_COMMAND = G10 L20 P0 Y-38 ( Set Y to -38.000 )
MDI_COMMAND = G10 L20 P0 Z0 ( Set Z to zero )
MDI_COMMAND = G10 L20 P0 Z100 ( Set Z to 100 )
MDI_COMMAND = G0 G53 X100 Y10 Z-10 (Park Position 1)
MDI_COMMAND = G0 G53 Y1000 Z-10 (Park Position 2)

hal file for IO
## --- Antasten ----
net MDI-x0			pyvcp.MDI-x0		halui.mdi-command-00
net MDI-y0			pyvcp.MDI-y0		halui.mdi-command-01
net MDI-z0			pyvcp.MDI-z0		halui.mdi-command-02
net MDI-z100	   	pyvcp.MDI-z100	     	halui.mdi-command-03
net Park-1			pyvcp.Park-1		 halui.mdi-command-04
net Park-2			pyvcp.Park-2		 halui.mdi-command-05

# --- Laser An ---
net laser-button hm2_7i76e.0.7i76.0.0.output-02	pyvcp.status-laser	   pyvcp.laser-an


XML code
<!-- Antasten-->
<label>
<text> "Antasten" </text>
<font>("Helvetica",14)</font>
</label>
<font>("Helvetica",14)</font>
<hbox>
<relief>RAISED</relief>
<button>
<halpin>"MDI-z100"</halpin>
<text>"Z=100.000"</text>
<bd>4</bd>
</button>
</hbox>
<hbox>
<checkbutton>
<halpin>"laser-an"</halpin>
<text>"Laser An"</text>
</checkbutton>
<led>
<halpin>"status-laser"</halpin>
<size>25</size>
<on_color>"green"</on_color>
<off_color>"red"</off_color>
</led>
<relief>RAISED</relief>
<button>
<halpin>"MDI-x0"</halpin>
<text>"X=83.000"</text>
<bd>4</bd>
</button>
<relief>RAISED</relief>
<button>
<halpin>"MDI-y0"</halpin>
<text>"Y=-38.000"</text>
<bd>4</bd>
</button>
<relief>RAISED</relief>
<button>
<halpin>"MDI-z0"</halpin>
<text>"Z=0.000"</text>
<bd>4</bd>
</button>
</hbox>


<!-- Parkposition-->
<label>
<text> "Parkposition" </text>
<font>("Helvetica",14)</font>
</label>
<hbox>
<relief>RAISED</relief>
<button>
<halpin>"Park-1"</halpin>
<text>"G0 G53 X100 Y10 Z-10"</text>
<bd>4</bd>
</button>
<button>
<halpin>"Park-2"</halpin>
<text>"G0 G53 Y1000 Z-10"</text>
<bd>4</bd>
</button>
</hbox>
</pyvcp>

#ISLANDER - input for control codes from gcode file (M67 E0 & M68 E0)
        self.command_from_file = hal_glib.GPin(halcomp.newpin("command-from-file", hal.HAL_FLOAT, hal.HAL_IN))
        self.lock_height = hal_glib.GPin(halcomp.newpin("lock-height-from-file", hal.HAL_BIT, hal.HAL_OUT))
        self.halcomp["lock-height-from-file"] = False
        
        #ISLANDER - service command from gcode
        self.command_from_file.connect("value-changed", self.on_new_command_from_file)
        self.hal_btn_THC = self.builder.get_object("hal-btn-THC")




   #ISLANDER - this function is used to decode command from gcode file
   # if real time control of height hold is desired then 1X and 2X need to be
   # decoded in a realtime component
    def on_new_command_from_file(self, hal_pin, data = None):
        if hal_pin.get() != 0:
             command = hal_pin.get()
             #THC run from file
             if 20 <= command < 30:
                    self.halcomp["lock-height-from-file"] = False
                    #no need to decode I% here no Hypertherm RS-485
             # height hold from file
             elif 10 <= command < 20:
                    self.halcomp["lock-height-from-file"] = True
                    #no need to decode I% here no Hypertherm RS-485     
             #global THC on
             elif 900 == command:
                   #self.hal_btn_THC.set_active(True)
                   self.halcomp["hal-btn-THC"] = True
             # global THC off
             elif 999 == command:
                   #self.hal_btn_THC.set_active(False)
                   self.halcomp["hal-btn-THC"] = False
              #get arc voltage
             elif 360 <= command < 400 or 3060 <= command < 3201:
                   if command >= 3060:
                        command = command - 3000
                   else:
                        command = command - 300
                   self.halcomp["target-voltage"] = command
                   self.lbl_prog_volt.set_label("%d" % command)
             #get preset Amps not actually used
             elif 410 <= command < 500 or 4000 <= command < 4201:
                   if command >= 4000:
                        command = command - 4000
                   else:
                        command = command - 400
                   #nothing else to do here for now
             #get arc servo delay time
             elif 50 <= command < 60 or 500 <= command < 600:
                   if command >= 500:
                        command = (command - 500)
                   else:
                        command = command - 50
                   self.adj_THC_delay.set_value(command)
             #get THC tune
             elif 710 <= command < 720:
                   command = command - 710
                  #nothing to set yet  
             elif 80 <= command < 90 or 800 <= command < 900:
                   if command >= 800:
                        command = (command - 800)
                   else:
                        command = command - 80
                   self.adj_pierce_delay.set_value(command)