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Sharing COM PORT MOXA

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Hello

 

I am using 3 computers which run the same VI.

They are connected on Ethernet and then, I have a MOXA (Nport 5150) connected to my RS232 device.

I configured 3 different COM PORT number depending on which computer needs to have access to the COM PORT.

COM 1 = PC 1

COM 2 = PC 2

COM 3 = PC 3

 

They are not using the COM PORT all time and never at the same time. But soon one PC has used the COM PORT, the other 2 com port on other pc are not usable (I can see it in NI MAX). And I do ask to close the VISA com port in my software...

 

So is that because I don't close the port properly ?

Or because it is not possible to share on COM PORT with a MOXA ?

 

Thank you


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