TCP/IP xml command

[Gino]

Hello.

I'm trying to connect measurement device vis TCP/IP communication. Since the manufacturer doesn't provide command set package, I could capture the packet while bundle software was running with the device. The stream seems to use xml codes. Red code is that PC sends message, and Blue code response with values. I created VI's accoding to simple example, but the communication failed.

Anyone can help/guide me resolve this communication?

Thank you in advance.

Gino

[LV_Pro]

Please be a bit more specific when you say "the communication failed". How it fails may help point to how to make it work.

[Gino]

The Error message says "Error 56 occurred at TCP Read."

[JackDunaway]

Error 56 is a simple timeout error, and in and of itself may be harmless. Are any bytes received in your "read buffer" string indicator?

Here's a helpful tip when you're troubleshooting errors: on the menu bar, choose "Help >> Explain Error..." and type in 56 to the dialogue.

[Gino]

Error 56 occurred at an unidentified location

Possible reason(s):

LabVIEW:  The network operation exceeded the user-specified or system time limit.

The string input was considered to be correct according to the TCP stream indicated in picture above. But, it may be additional work to do communicate.

Anyone help me?

[Dennis_Knutson]

Try appending a CR or LF (or both) at the end of the string.

[Gino]

It doesn't work at all.