topic Re: Error 85 occurred at Scan From String (arg4) in LabVIEW

Error 85 occurred at Scan From String (arg4)

raj177 — Fri, 28 Aug 2015 20:30:12 GMT

I am trying to scan in hexadecimal values and convert it into decimal values from a text file.

The file I am scanning from consists of linessuch as

DSDS S0=00002B5D S1=00002AD5 S2=00001C9E S3=00001050 S4=00000003 S5=D2BF3769

I am trying to convert the S0, S1, S2 , S3, S4 AND S5 to decimal values. But I keep getting "Error 85 occurred at Scan from String (arg4)". I am not sure what I am missing here. I have attached the vi below.

Re: Error 85 occurred at Scan From String (arg4)

Darin.K — Fri, 28 Aug 2015 20:36:19 GMT

Just add '%s ' to the beginning of your format string to grab the start of the string, (make sure you add the space after the %s)

Re: Error 85 occurred at Scan From String (arg4)

johnsold — Fri, 28 Aug 2015 20:43:55 GMT

Putting "DSDS " at the front of the format string works also but is not as flexible as Darin's recommendation.

Lynn

Re: Error 85 occurred at Scan From String (arg4)

raj177 — Fri, 28 Aug 2015 21:36:40 GMT

I am not sure what I am doing is right. But where do I exactly add the %s. A image description will be of more help.

Re: Error 85 occurred at Scan From String (arg4)

johnsold — Fri, 28 Aug 2015 21:41:06 GMT

Where you have it is fine.

Lynn

Re: Error 85 occurred at Scan From String (arg4)

raj177 — Fri, 28 Aug 2015 21:43:37 GMT

But I am still getting an error " Error 1 occurred at Scan from String -input parameter is invalid"

Re: Error 85 occurred at Scan From String (arg4)

johnsold — Fri, 28 Aug 2015 22:37:17 GMT

I do not get any error and the outputs seem reasonable when I run it using the string you posted in the first post of this thread.

Lynn

Re: Error 85 occurred at Scan From String (arg4)

RavensFan — Fri, 28 Aug 2015 22:40:16 GMT

Using the string you posted in your earlier message in the VI you posted, it works just fine for me.

Are you sure you have a complete, accurate string? Post your VI with the string that fails saved as the default value in the string control.

PS: You don't need to wire a constant 0 to all of those inputs. The default value is already 0. And the datatype will default to the datatype of the indicator you wire in.

Re: Error 85 occurred at Scan From String (arg4)

raj177 — Sun, 30 Aug 2015 00:45:53 GMT

This is the VI I have got. But I still keep getting the error input parameter is invalid. Can you just post the vi you think which works fine so that I can cross check what is the mistake.

Re: Error 85 occurred at Scan From String (arg4)

billko — Sun, 30 Aug 2015 01:02:25 GMT

@raj177 wrote:

This is the VI I have got. But I still keep getting the error input parameter is invalid. Can you just post the vi you think which works fine so that I can cross check what is the mistake.

As Raven said above, please post that same VI with typical data saved in the control as default values.

Re: Error 85 occurred at Scan From String (arg4)

RavensFan — Sun, 30 Aug 2015 01:10:51 GMT

You failed to put your received string into the control and save it as default.

The string you posted earlier worked.

See attached VI wiht that string data saved.

Re: Error 85 occurred at Scan From String (arg4)

raj177 — Sun, 30 Aug 2015 02:05:48 GMT

Thank you. Yeah you were right. I didn't give a received string to the control.