send a signal from lab view to a comm port

[hawkeye182]

Hi, i have this vi and i need to send a signal each time i get an output from an indicator. For example, if the cluster indicator shows "c" then a signal is sent to a port, if it shows "b" another signal is sent to a different port. I need to control relays with each signal and i have a total of 3 signals that need to be sent depending on the output a b and c. can someone help me with this

[hawkeye182]

by the way i am new to labview and here is the vi

[apok · Accepted solution]

check this out....How Do I Use the Parallel Port in LabVIEW? and Using VISA to Access the Parallel Port in LabVIEW

[hawkeye182]

thank you so much, i'll give it a try and let you know

[Dennis_Knutson]

Do you really want the com port or the parallel (printer) port?

p.s. The VI you attached will not open.

[hawkeye182]

so sorry, this is the vi

[hawkeye182]

what is the difference between those two? i only need a way to send a signal depending on the result of the search function in my VI. 

[hawkeye182]

and btw i am using a macbook with only 2 usb port, if it helps

[hawkeye182]

hi can anyone convert the vi parallel Exp to version 11.0 please

[Carl_W]

Hi,

You can always post the vi to our Version Conversion forum to see if someone can convert it for you there.

http://forums.ni.com/t5/Version-Conversion/bd-p/VersionConversion