her is the answer of a working script
hal postgui file
Code:
# connect the X PyVCP buttons
net my-jogxminus halui.axis.x.minus <= pyvcp.x-minus
net my-jogxplus halui.axis.x.plus <= pyvcp.x-plus
# connect the Y PyVCP buttons
net my-jogyminus halui.axis.y.minus <= pyvcp.y-minus
net my-jogyplus halui.axis.y.plus <= pyvcp.y-plus
# connect the Z PyVCP buttons
net my-jogzminus halui.axis.z.minus <= pyvcp.z-minus
net my-jogzplus halui.axis.z.plus <= pyvcp.z-plus
# connect the PyVCP jog speed slider
net my-jogspeed halui.axis.jog-speed <= pyvcp.jog-speed-f
