Code for FAST 2

[krupa]

I have read the manual,there are 2 commands ERRS,ESR.

There is a vi for ESR and one for ERRS.Both are used in my code.So now tell me what change is appropriate.

[Dennis_Knutson]

If you want to read the error status register, it is ESR?

[dmsilev]

I guess at this point I've lost track of what is and isn't working for you. So, here's a checklist, and if you could please indicate which steps worked and which didn't:

1) Send command over RS232 to instrument from MAX (no response required). Change the frequency or something like that.

2) Send query from MAX and receive response. *IDN? is the usual test string.

3) Send command to instrument from LabView. Instrument executes command. Again, change the oscillator frequency.

4) Send query from LabView and receive response. Again, send a *IDN? and look at the response string.

Have you successfully executed all four steps? If not, there's no point in trying to diagnose the details of why reading a particular status register byte isn't working. 

[krupa]

As per the original driver SW from ni webpage,the Single Parameter vi has both ESR and ERRS.

I am taking it as such,as i feel there is no change required.

The only change which i suppose is making it compatible with serail comm.

Deleting a Vi(ESR/ERRS),whether this is required???If so,does it not give further error??

[krupa]

I already Queried for IDN from MAx,Labview.I got the responsse too.

[dmsilev]

If you send the string 'SNAP? 1,2', what comes back?

[krupa]

Thanks for your response.They closed the lab just now.I can try with this command and let share the response here by tomorrow.

Thanks for your continued support.

[krupa]

I tried with SNAP? 1,2,i was able to read X,Y values.

I tried with a Basic Serial Write and Read.vi.

May i know what exact changes in required in Stanford Research 830 Acquire Measurement - 1 Parameter.vi to get Serial data comm. with proper response for the commands??

[krupa]

Please reply to me previous post and also to this.

Why there is always a TimeOut error when ESR is queried.20bytes are read,as mentioned in the driver.

I change it to Read bytes from Port,which also throws error.

Whats the issue here and how to fix??

[dmsilev]

The most recent version of your error-query routine that you posted ('more_change.png' on July 13th) uses the Bytes At Port property. Did you follow Dennis's advice about eliminating that and using a proper termination character instead?

Similarly, if you use the Basic Serial Read Write command to query the status and error registers, do you get a sensible string back?