Search found 9 matches

by johncht
Thu Jan 15, 2009 10:32 am
Forum: Parallel Port Products
Topic: Program crash with Labview?
Replies: 10
Views: 13812

Robin Thanks for your great help. But I find a small problem is that if I want to take sample per second by adding wait function connecting with "1000" constant, then the program works with my expection except that it cant be stopped by clicking the stop button. After this the DrDaq doent work and r...
by johncht
Thu Jan 08, 2009 1:50 pm
Forum: Parallel Port Products
Topic: Program crash with Labview?
Replies: 10
Views: 13812

ok i get this
Thanks
by johncht
Thu Jan 08, 2009 10:06 am
Forum: Parallel Port Products
Topic: Program crash with Labview?
Replies: 10
Views: 13812

Hi Robin

Thanks gor your reply.
But I don understand the 1st point.
What should be changed?

Regards,
John
by johncht
Wed Jan 07, 2009 1:06 pm
Forum: Parallel Port Products
Topic: Program crash with Labview?
Replies: 10
Views: 13812

Here I directly use drdaq_single.vi
I still ahve the same problem...
There is a reading at the begining and then no reading afterwards.

BUT after I try serval times, I can use picolog with no problem without restarting the computer.

But there is still only 1 reading everytime I open the Labview...
by johncht
Wed Jan 07, 2009 12:14 pm
Forum: Parallel Port Products
Topic: Program crash with Labview?
Replies: 10
Views: 13812

Dear Robin, The main probelm is that when I run the example program in Labview, I can only get one result. When I run it again, all readings are zero. Also, there is error when I open picolog after closing Labview. I need to restart computer in order to use picolog. I think there is a crash after I ...
by johncht
Wed Jan 07, 2009 9:37 am
Forum: Parallel Port Products
Topic: Program crash with Labview?
Replies: 10
Views: 13812

Program crash with Labview?

Hi. I am now using Labview 8.0 , DrDAQ and picolog recorder 5.0. I find that when I open the example in Labview, data can be taken once only. Then there is error when opening picolog recorder , too. I need to restart my computer in order to use the picolog recorder again. Also, when I open NI Measur...
by johncht
Tue Jan 06, 2009 3:10 pm
Forum: Parallel Port Products
Topic: Dr.DAQ
Replies: 4
Views: 6751

Thanks for your great help
by johncht
Tue Jan 06, 2009 1:06 pm
Forum: Parallel Port Products
Topic: Dr.DAQ
Replies: 4
Views: 6751

Thanks Robin
But I am using Labview 8.5 now. The drdaq_example.vi cant be opened in this version.
Actually I want to use DrDAQ to measure temperature and humidity. Can I follow the program shows in the example I posed before to achive my goal?

Thanks for your support
by johncht
Tue Jan 06, 2009 5:16 am
Forum: Parallel Port Products
Topic: Dr.DAQ
Replies: 4
Views: 6751

Dr.DAQ

Hi
I would like to know that if the output of external temperature and humidity sensors of Dr.DAQ be used by Labview directly?

Here is an example :
http://www.ontrak.net/labview.htm

Thanks for the help