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 Measurement & Automation program, there is no detection of DrDAQ
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 run the example program.
( When I open the picolog, an error : DrDAQ Driver V3.6 pico.sys not found.
After pressing "OK", a second error occurs : DrDAQ LPT1 pico.sys not found)
The problem of PicoLog crashing can be solved by changing the 'call library function' node to call drdaq_labview_single rather than drdaq_labview_single-2.
We need to investigate why the function is only returning values after its first call. It may be a driver issue or to do with the fact that the DLL function was originally created for a much older version of Labview.
In drdaq_single.vi, double click on the central block (this is a Call Library Function Node that is used to access functions in the DLL). Under function name, there is a drop-down menu and drdaq_labview_single-2 will be selected. You should change this to drdaq_labview_single.
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 restart computer is needed for further use.