topic Re: Channel changing in DASYLab

Channel changing

djmac — Tue, 13 Mar 2012 12:37:54 GMT

I'm having an issue with Dasylab and NI_MAX. I have two task set-up in MAX. When I use these task in Dasylab it works correctly the first time, but when I run it the second time the channels shift 1 position. (Ex. Output 3 changes to output 2). It stays in the offset configuration. If I then go into MAX the first time I run MAX the channel is shifted 1 location. When I stop and start it it goes back to the correct location.

I do not not have a problem if I put all the channels in 1 task. Just curious if there is a problem using multiple task in Dasylab.

DasyLab 11

Windows XP sp3

MAX 5.0

Thanks

Re: Channel changing

MHa — Tue, 13 Mar 2012 13:34:35 GMT

@djmac,

please tell us:
- the DASYLab version 11.?.?
- the NI-DAQmx version ?.?.?
- the used NI-DAQmx device(s) and all details for your created tasks

Is the problem only under DASYLab usage or also under MAX test usage?

Best regards,
MHa

Re: Channel changing

djmac — Tue, 13 Mar 2012 14:57:32 GMT

Dasylab 11.0.0

NI DAQ MX = 5.0.0f1

DAQmx Devices

-9174

- 9219 (2)

- 9213

I have temp task whick has 9 channels (0-9) on the 9213. I also have a voltage task that use 4 channels on the first 9219 and 2 channels on the second 9213 (ch 0 and Ch 2).

If i just run MAX it is not a problem. The proplem occurs after running dasylab. Below is the sequence that causes problems

1. Run task in MAX (Good)

2. Run in Dasylab (Good)

3. Stop and restart dasylab (Values shift)

4. Run task in MAX (Values are still shifted)

5. Stop and restart MAX (Good)

When exiting out of both DasyLab and MAX they both ask if I want to save changes, even though I have not changed any settings. I have had this problem on another setup as well.

Thanks for the help

Re: Channel changing

MHa — Tue, 13 Mar 2012 15:40:22 GMT

@djmac,

Please update DASYLab 11.0.0 with Service Pack 2.
Please update NI-DAQmx with 9.5.
Please check now again the situation.

Best regards,
MHa

Re: Channel changing

djmac — Wed, 14 Mar 2012 13:16:25 GMT

Installed all updates and still have the same issue.

Thanks

Re: Channel changing

MHa — Wed, 14 Mar 2012 15:59:10 GMT

@djmac,

1. Run task in MAX (Good)

2. Run in Dasylab (Good)

3. Stop and restart dasylab (Values shift) -> sounds that any API command from DASYLab for NI-DAQmx generate a reinit problem.
4. Run task in MAX (Values are still shifted)

5. Stop and restart MAX (Good)

Please attach
- your DASYLab worksheet
- your MAX task configuration
- a NISpy Log from DASYLab NI-DAQmx calls
to this thread. I would like think about the problem. Thanks.

Best regards,

MHa

Re: Channel changing

MHa — Fri, 23 Mar 2012 19:02:39 GMT

@djmac,

please send me the infos. Otherwise I can't help.

Best regards,

MHa

Re: Channel changing

djmac — Wed, 04 Apr 2012 19:03:10 GMT

Sorry for the delay. Here is the info. Let me know if you need any thing else

Re: Channel changing

MHa — Tue, 10 Apr 2012 06:50:39 GMT

@djmac,

please send me also your MAX device / task configuration. I don't have the info which device(s) you use and which type of task. Thanks.

Best regards,
MHa

Re: Channel changing

djmac — Tue, 10 Apr 2012 12:00:38 GMT

Do you need more info than what is provided in the "max report" html file?

Re: Channel changing

MHa — Tue, 10 Apr 2012 12:04:29 GMT

Yes, the MAX export file *.nce with included tasks and device would be more helpful.

Re: Channel changing

djmac — Fri, 13 Apr 2012 18:14:58 GMT

I tried to attach the .nce file and it gives me an error saying that its not an acceptable extension for an attachment. What would you like me to do

Thanks

Re: Channel changing

hw70 — Mon, 16 Apr 2012 09:25:47 GMT

Please 'hide' the NCE-file in a ZIP-archive.

BTW:

May be a nice augmentation to this NI-forum, if it's possible to attach files-formats used in NI-software... 😉

Re: Channel changing

djmac — Tue, 24 Apr 2012 17:59:52 GMT

Attached is the NCE file. Sorry for the delay, I've been on vacation

Re: Channel changing

MHa — Mon, 30 Apr 2012 08:30:59 GMT

@djmac,

I have used your configData1.zip MAX settings and your last DASYLab worksheet. I'm use DASYLab 12.0.x and get from DASYLab NI-DAQmx driver an error message if I load the DSB:

- task MyVoltageTask -> The synchronization load from MAX into DASYLab say me that the task have an internal sampling rate = 0.0. This based on an error from NI-DAQmx API outside from DASYLab. A workarround is only if you change the MAX task mode "continuous" into 1 value spoftware polled. Is this possible for you? Please check now the swapping situation for your application.

Best regards,

MHa