Instrument Control (GPIB, Serial, VISA, IVI)

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Control two devices with RS232 splitter

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Dear all. I made a VI that control (a part from many other things)  a PI stage and a Thorlab shutter. The problem is that both need an RS232 connection and my computer has only one port. 

 

I bought an RS232 Splitter and now both are connected but once the first enstablish a connection the second doesn't. Do you have any idea of what I am doing wrong? Is anyone already done something similar? The two devices have different baudrate but the problem is that running the "initialization" VI for both, if I establish a connection with the first (using the correct parameter), the second won't work (even if the parameter are correct). I think that the problem is on some sort of conflict in the port but I don't know how to solve it.

 

Thanks

 

Peppe 

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Accepted by topic author peppecantarella
Don't use a splitter. That makes no sense. You should have multiple USB ports that you connect dedicated converters to.
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Thanks for your answer, I'll try this solution and I'll let you know. 

 

 

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"Don't use a splitter. That makes no sense. You should have multiple USB ports that you connect dedicated converters to."

 

Or one USB port feeding a 2 or 4 port RS232 converter. 

 

(same end result, but somewhat cheaper and cuts down a bit on cable/device clutter)

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It does work! thanks

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