Using a TCP/IP Connection to REQUEST and RECEIVE data from a iDRX Signal Conditioner through a EIS-2B Server

First let me say that I am new to labview, please bear with me. I want to use Labview to querry a iDRX thermocouple signal conditioner using tcp/ip. The signal conditioner is wired to a EIS-2B server. The server is at 198.162.10.53 and port 2000. The data request command is *10x01\r and the expected data to be returned is 01X01+00064.6 (or whatever the actual temperature is). The conditioner and server are working and testing correctly using the iDRX supplied software.
My attached vi runs, creates no errors, but returns no data either. I can find many examples of how to set up a listener, but I need to QUERRY and then RECEIVE the data.
Thanks in advance.
Attachments:
Alyeska 4.vi ‏15 KB

Hi Alyeska! Welcome to the forums!
I took a quick look at the VI, and I have four quick suggestions for
you that may give us some information about what is happening.
You may be experiencing an error that just isn't detected by the VI -
normally we add an error handling VI at the end of program execution to
report any errors that occurred. Also, it's helpful to have a way
to exit the while loop so that the program can finish executing if an
error occurs. Third, you may need to introduce a delay between
the query and the read command to allow the server time to process and
respond to the request. Lastly, if you already know how long the
return message will be, you should wire this length to the Bytes to
Read input of the TCP Read VI so it knows to return the data once it
receives that number of bytes. I've attached a modified version
of the VI incorporating these - give this a try, and let us know if you
still see an error, and if so, what error. Also, if you haven't
taken a look at it already, there are excellent resources for learning
LabVIEW at the LabVIEW Fundamentals page - it's a great way to introduce yourself to LabVIEW and get up to speed quickly.
Cheers,
Matt Pollock
National Instruments
Attachments:
Alyeska 4.vi ‏19 KB

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Using a TCP/IP Connection to REQUEST and RECEIVE data from a iDRX Signal Conditioner through a EIS-2B Server

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