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I use unitroncs cable - USB to Serial communication.

Time out for communication 1.5

Bit Rate has been set to 115200, 38400.
During downloading a new empty project I have same issue.
My program has not include any errors or warning.

Same program has been downloaded to this PLC last week, and has been checked real time.

But this problem come back time to time.


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  • MVP 2023

Try to use older version visilogic to download blank project.
Try to use external usb to com converter for connection.
Try to load the same project without any images (displays).
 Check all V700 power supply connection.
As i see flash memory maybe corrupt :(

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  • 2 weeks later...

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