
Release Notes for XHC MACH3 USB Motion Card

XHC NcUsbPod.dll is the Driver of XHC USB CARD  for MACH3 cnc control system. 
You could control your cnc machine through my usb card.it is compatible with 
mach3 usb ncpod device.
USB full speed  Com Interface
4/6 Axis Step/Direction Output
8 General Purpose Outputs 
1 PWM Output for Spindle Speed Control
4/6 Home Inputs
16 General Purpose Inputs
Status LEDs
Up to 400k Steps/Second


V2.38.9 2016.4.12
1.add spinde index pulse input check function


V2.38.8 2016.1.26
1. send zero move data to device when estop state.

V2.38.7 2015.12.12
1. add  second home function

V2.38.6 2015.9.30
1. solve some program  pause  while in the running program

V2.38.5 2015.8.12
1.solve G03,g02 pause time long problem.
2. support maximum motor output pulse 2mhz
V2.38.4 2015.7.8
1. add probe variable 2000-2003,but it maybe still could not compatible with mach3 screen 2010.
if you want to probe with screen 2010,please replace the GetVar(2002) with getoemdro(802),
GetVar(2001) with getoemdro(801),GetVar(2000) with getoemdro(800).

V2.38.3 2015.6.4
1. add limit slow zero. 

V2.38.1 2015.4.16
1. improve the G54 G55 switch function. 

V2.38 2015.4.8
1. solve the G54 G55 switch problem. 

V2.36 2015.3.22
1.solve the delay gap in gcode g81

V2.35.9 2015.3.20
1.optimize the display line when over 65535 lines.

V2.35.8 2015.3.9
1.optimize USB transmission.

V2.35.7 2015.2.11
1.optimize the stop function.

V2.35.6 2015.1.26
1.support G83,G73 code.

V2.35.5 2015.1.7
1.to seperate seting home limitswitch.

V2.35.3 2014.11.13
1.disable jogging z when spindle on
V2.35.2 2014.10.16
1.complement x,y probe function.
V2.35.1 2014.9.26
1. limit the minimumm jog speed to 1/inch/mm/s.
2. auto reconnect usb when usb lost.

V2.35 2014.8.5
1. change the download data length
2. close outputio when close mach3
3. it is not compatile with old card from today

V2.34 2014.7.16
1.solve the software limit at the zero coordinate
2.add the opinion of softwarelimt disalbe when homing 
V2.33 2014.6.16
1. solve the problem :the spindle is on and off dithering  when the spindle off.
2. when the motor speed less than 1k.we limit it to 1k.solve cannot jog on when low motor speed.
3. auto check device reset and prompt user.
V2.32 2014.5.12
1. solve pull up usb card ,possible make mach3 crash problem.

V2.31 2014.5.12
1.solve first proble z problem.
2.for compatible reason,don't download honmeswitch signal.
V2.30 2014.4.8
1. modify the display line number and device buffer when stop
2. solve some pause problem when circle.


V2.29 2014.3.5
1. modify the setline function.
2. support backlash compensation
3. compile with windows7 more stable
3. make the usb more stable
V2.28 2014.1.14
1. modify the probez function
V2.27 2014.1.9
1. solve the crash with xhc whb04 usb MPG.
V2.26 2013.10.11
1. to stop in time when homing,we send Io information to  card 
2. solve some abnormal problem when reset. 
3. output io could be tested seperately.

V2.25 2013.9.24
1. to display spindle speed stable
2. add testoutput button for test output

V2.24 2013.8.29
1. auto run again after usb reset ok.
2. auto set motor maximum frequncy to device.
3. modify back machine home with second .

V2.22 2013.8.3
1. close spindle pwm output,when close mach3.
2. estop when  limit switch on .
3. directly go to machine home when the axis is disable.


V1.12 2013.8.12
1.support  imit speed  1khz-400khz
V1.11 2013.7.22
support six axis moving.




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XHC Wireless , Inc.
NO 66. ruilian road chengdu, sichuan ,China

86-028-81705368 - Sales,Fax
86-028-81701768  - Support

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