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Mikk

MicroWIN, problem: "Class not registered"

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Posted (edited)

Hello,

I am not very experienced with Siemens PLC's

I want to change program in one S7-200 CPU 226 (profibus).

I have never connected my laptop to it before and I don't have that PLC's program. I have PC Adapter USB A2 cable for that and V4.0 STEP 7 MicroWIN SP7 program.

I connected the cable, opened the program and tried different settings for connection, most of times the test in diagnostics says that status is OK.

But! in communications window when ever I try to refresh the adapter is gives me error: "Class not registered"

So I'm not able to upload the program from PLC to my laptop.

Can anyone give me support?

Edited by Mikk

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Posted (edited)

 Classes are registered during the installation of the software in the registry. If you get an error code " class not registered " there maybe something wrong in the installation or you may have installed incompatible software. 

Edited by Jairus
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Thank you Jairus, you are totally right, the installed version was totally incompatible for my operating system.

for Windows 7 and XP SP3 you need latest SP9 aka  V4.0.9.25
for older Windows OS you must use older versions.
as far as I know then it doesn't work on windows 8 and 10.

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I'm using virtual machine or VMware in that case...

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