how can i receive data from com1 ?

[Humi]

Hi all,

I'm a new user with labview, and i need to get the thermal reading from a thermometer wich is plugged into the computer using an RS232 optical cable, can you help me and send me instructions of how do i get this information to my Vi ?

Thanks,

[A_Ryan]

Hello Humi,

I have a couple of questions for you:
1.  What type of thermometer do you have?
2.  Have you confirmed communication to the device using Hyperterminal and the LabVIEW examples? (Help>>Find Examples>>Hardware Input and Output>>Serial>> Basic Serial Write and Read)

Depending upon the type thermometer we may have a driver already for it.  Here is a link to Instrument Driver Network to check and see if we already have a driver created.  I also found an example of using serial to acquire thermometer readings.

[osmioben]

hi, i've also come across with this problem. i'm now using hyperterminal via Com1. Apparently, I'm not able to receive any data. Help is much appreciated.

[Dennis_Knutson]

Either your com settings are incorrect, you are using the wrong type of serial cable, or the instrument is not configured to send any data. Make sure the settings of the instrument match what you are using in Hyperterminal. If you are using a straight through cable, try a null modem cable and vice versa. Check the manual of the instrument.

You have not provided the make and model of the instrument. If you have an electronic copy of the manual, attach that.

[pflores]

Here are some helpful links for Serial Communication:

Serial Communication Starting Point

Serial Communication General Concepts