Copyright Jul.2014 by ICP DAS CO., LTD. All right reserved.

This paper lists the upgrade history of the Win-GRAF driver of the 
  VP-25W8 and VP-4138 .

The "VP-2xx8-4xx8" addreviation is for the VP-25W8 and VP-4138 
  PAC (Programmanle Automation Controller).
 
The newly released driver can also be obtained from the following website.
  http://ftp.icpdas.com/pub/cd/win-graf-pac-cd/Napdos/VP-2xx8-4xx8/driver/
  For example, the "vp-2xx8-4xx8-driver-1.01.zip" means the driver version 1.01 .

Warning:
  The copyright of the Win-GRAF driver (firmware) belongs to 
  ICP DAS CO., LTD. 
  The WP-2xx8-4xx8 PAC have registered a legal Win-GRAF Target license. 

Trademark:
  Products, names and trade names appeared belongs to their respective owner. 


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*  1.01 , Jul.31,2014
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1. This is the first relesed Win-GRAF driver of the VP-2xx8-4xx8 PAC .


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*  1.01 , Aug.20,2014
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1. Fix a bug when loading the application code from \System_Disk\Win-GRAF\ .


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*  1.02 , Oct.01,2014
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1. Add I/O - "schedule" to support the "Schedule-Control Utility" to implement 
   schedule control. (Refer chapter 17 of the Win-GRAF User's manual)


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*  1.03 , Oct.21,2014
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1. User can implement his own C-function and C-function block to a User_C.DLL to
   work with the Win-GRAF driver. (Refer chapter 18 of the Win-GRAF User's Manual)
2. Fix a bug in the schedule-control (a bug in special-day) .


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*  1.04 , Jan.23,2015
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1. Add dial_up_win_graf.dll , dial_up_utility_win_graf.exe and 
   dial_up_net_win_graf.dll for supporting dial_up 2G/3G to access to the Internet
2. Fix a bug in the main() to solve a driver shutdown problem when downloading a project if the
   PAC state is "No application" .
3. Add the "WG-Communication-PAC.exe" to connect the "WG-Communication-Server" for supporting
   the "Win-GRAF Intelligent 3G solution ".
4. Add three c-functions : Send_File_To , Send_File_State , Send_File_Abort( ) .
5. Modify the "F_CP_DIR" function to handle also all its sub-directories.
6. Modify the "F_DEL_DIR" function to handle also all its sub-directories.


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*  1.05 , Mar.25,2015
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1. Add GSM_xxxx function blocks to support Short Message Service. 
   (Refer the Chapter 21 of the win-GRAF User's manual.)
2. Add "PID_simple" function block for PID control.
3. Show app-ver, app-crc and app-size on the Win-GRAF driver dialog.
4. Modify "dial_up_win_graf.DLL" . Increase timeout of "PAC connect WG-Communication-Server" to 50 seconds.


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*  1.06 , May.04,2015
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1. Support the I-87H17W (Hart Master card) to connect to Hart devices.
2. Support the I-87041W in PAc 's I/O slots.