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PLC connection error


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Hey All,

Just had a strange experience while installing Remote Access onto a PC.

Now this PC is one I use as my normal workstation, email/office/CAD/etc, but not my PLC stuff,
but I do have an older version of Visilogic (9.8.31) installed that I use to get online
to look at something in the plant without disturbing what I'm doing on my programming PC.

Now I just finished a little project (a water meter using a Dwyer Ultrasonic Flowmeter, connected to a V350)
that I was going to setup Remote Access for a manager to be able to remote into...

So, just for testing purposes I decided to do an install of Remote Access on my workstation (yes, installed as admin).
Install went ok, I opened Remote Access and added the PLC to the Favorites list
(which already was populated with a half dozen PLCs from the Vision Install),
but when I select this (or any) PLC from the list and click on the Get OPLC Information button,
I get a warning message that "No PlC is currently selected in Connection-PC settings".

If I open up Visilogic and try to check connection with any of these PLCs I get a similar message.

My instincts are to do a good uninstall (RevoUninstaller) and start over, but thought I'd solicit opinions first.

 

JohnR

remote.PNG

vision.PNG

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4 minutes ago, Joe Tauser said:

often when one of the Unitronics programs starts throwing up errors I run the Visilogic Version Swapper for the same version I'm using and it fixes things. 

Yep, that's the first thing I always try when the (all too frequent) weird errors start popping up. I also keep a copy of a known good installation for each VisiLogic version on a separate drive (the entire folder from the Programs Files (x86) folder) and copy over the one that's messed up. One of those two usually solves the problem quickly. Because I have that backup known good installation available, I NEVER have to uninstall/reinstall VisiLogic.

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3 hours ago, John_R said:

what's the second thing you try?

 

3 hours ago, Flex727 said:

I also keep a copy of a known good installation for each VisiLogic version on a separate drive (the entire folder from the Programs Files (x86) folder) and copy over the one that's messed up.

The problem is that requires advance preparation.

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JohnR, what you are describing is classic case of what I have banged on about before.  I suggest you have a good read of this post/topic and fiddle with the .evb.

http://forum.unitronics.com/topic/6478-connection-problem/?do=findComment&comment=26158

What I have found in the past is that the evb file for Remote Access doesn't actually relate that well to the one that is used by other programs.  It seems to sort of stand alone in the way it works, even though it appears to reference the main one as well.  I mentioned it in here:

http://forum.unitronics.com/topic/4114-sd-card-explorer-to-remember-file-locations/?do=findComment&comment=27718

cheers, Aus

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On 9/11/2020 at 2:01 PM, Flex727 said:
On 9/11/2020 at 10:14 AM, Flex727 said:

I also keep a copy of a known good installation for each VisiLogic version on a separate drive (the entire folder from the Programs Files (x86) folder) and copy over the one that's messed up.

The problem is that requires advance preparation.

Yes Flex, I keep archived installs also... just seemed odd that it happened when I installed Remote Access

 

On 9/11/2020 at 2:06 PM, Joe Tauser said:

Is this Win 10?

Did you install the latest version of Remote Access or a previous one?

Yes, Win 10, and just downloaded the latest version from Unitronics website...

 

On 9/11/2020 at 5:26 PM, Ausman said:

JohnR, what you are describing is classic case of what I have banged on about before.  I suggest you have a good read of this post/topic and fiddle with the .evb.

http://forum.unitronics.com/topic/6478-connection-problem/?do=findComment&comment=26158

And the winner is.... Aus.....😌

Renamed the .evb file and created new, problem solved....

 

Thanks guys...

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