generate digital voltage cycle for controlling solenoid valves

[Vikrantrai01]

Hi,
I want to generate digital voltage cycle (0 V-15 V-0 V-15 V...) so as to turn on and off solenoid valves. The valves should open for at most 1-2 sec and then remain close for 30-40 seconds. I am using a DAQ card PCI-6503 and electromechanical relay ER-8 to send out digital voltages. I have no experience in using DAQ cards and stuff. Can someone please help me out in writing such simple VI? I would really appreciate if there is a similar tutorial on above mentioned problem.
 
Thanks,
Vikrant
 

[Vikrantrai01]

Thanks a lot for your help. I have both versions as in Labview 7.1 and the latest 8.2.1. Even I saw some VIs posted in different forums for controllng solenoid valves. The only concern I have is how to use DAQ to generate voltage or rather I should say how do I know whether I am getting the output I want?
Anyways, I appreciate your help and hope to get few good examples.
Thanks again,
Vikrant
 
 
 

[Robert F]

Hi Vikrant,




You can use a DMM to measure the output of the
PCI-6503.  You could also route the
digital output signal to another digital input and measure that signal on the
test panel in Measurement & Automation Explorer (MAX). 

[Vikrantrai01]

Thanks a lot. Fortunately I have DMM. Really appreciate your help. I have downloaded some VIs for controlling solenoid valves. Hope it works.
Vikrant

[vinoth002]

Robert F wrote:

 You could also route the digital output signal to another digital input and measure that signal on the test panel in Measurement & Automation Explorer (MAX). 


Hi Robert,
 
Could you tell me how to do this?
 
Thanks
Vinoth

[Robert F]

Hello,




Glad to Vikrant you have it under control.




You would physically wire the digital output pin to the
digital input pin.  Open a test panel in MAX
and then run your application. 

[Robert F]

Hello Vikrant,




Is your relay going to be able to switch if a TTL compatible
signal is applied?  The PCI-6503 can only
output digital signals that are TTL compatible (0V ? 5V).