Hello to you all. My hopes were to share with you my accomplishments, but unfortunately (for me), I have ended up with questions.
In company, where I am employed, we have machine that is unfortunately equipped with WF470
. Moreover, its program is stored on to three RAM modules, so one day that
backup battery is going to die.
For the last two years, I was trying to find some solution to "secure" or upgrade from WF470 to some more common HMI.
Everything started when I found 3.5 floppy named "WF470 pult1" in some pile... It was full of .sys files, and it turned out it was backup of the WF program.
Simultaneously, I was searching for proper software and for upgrade solution. That is how I learned a lot of "how impossible is to obtain a WF470win". For an upgrade, we asked MR Control, send them a copy of files and S5 dump, but we never got any offer from them. So I continued to search for software and recently something appeared and it looks like complete STEP5 folder from some PG750.
There, I found KA470.EXE with some additional KA files.I found it by typing "ka470.exe" in google. Progam can be loaded under winXP, win98 and of course MS-DOS.
Program recognizes contents of backup floppy and shows it upon read out.
Now the hard part.
I made connecting cable and used active tty modem that I am using on all S5 plc we have. PC was with MS-DOS 6.22. Cables connected, program ka470 loaded, button "content of WF470" pressed and message "Datatransfer in process" appeared.
To good to be true. After about 40 sec. "error in connection to wf"shows up
.
On modem, TD led flashes once and RD following in the same manner when you call the content of the wf470.
My thoughts where that program is supposed to be used on PG device with COM1/v24/AG port. So I used Simatic PC box 670 that we have. It has COM1 port that has the same pinout as PG7xx unit. I made that cable as well, enabled TTY option in BIOS settings and crossed my fingers. Unfortunately, everything was the same. Data transfer appears on the screen, but ends with error. I forgot to mention, that every time I send that command, or command SAVE, WF470 resets, or, Systemmask shows on the console screen. And than I realized that firmware version is 3.0 and I saw here on the forum that the minimum for KA470 is 4.0.
My questions are: how that backup floppy was made, and more important, how those files can be loaded if our wf can't support KA470.
I would also ask, could somone with WF470 at hand, and firmware greater than v4, try this version of KA470 on connection and data transfer.
... 
