daq simulink

[xuyao]

各位好， 我最近做项目用labview的SIT工具和RT, 先用DAQ采集数据 然后SIMULINK里的模型转换为DLL，在sit里实现实时采集控制，仪器选择DAQ的6215USB采集卡，但是在labview界面上运行时出现了错误框：Measurements: Requested value is not a supported value for this property.见附件  请问这是什么原因啊, 是不是要在程序框图里还有添加daq assitant, 但是我在sit里设置了daq装置的啊  请高手帮帮我啊 不甚感激！

hello!  i am doing some research these days with labviw SIT and RT, first i use the DAQ to get data, then thansfer the simulink model to dll model, in order to realize the real time measuring and controlling. the equienpment is DAQ 6215 USB, but when i run it in labview , the dialog showing run error:Measurements: Requested value is not a supported ! value for this property   please tell me how to make it correct , thanks a lot!

帖子被xuyao在 12-07-2009 06:07 AM

时编辑过了

[Christian Mergl]

Hi,

The driver VI works hardware triggered single point and takes the timing from your simulink model.

So I would suggest that your model simply works with a sample rate which is too high for the DAQ device.

Could please try to decrease the rate of your model to see if it works then?

On the other hand it could also be a range setting which is higher then the DAQ card is able to work with.

Thanks,

Christian