LDF Starter Kit problem

[mike_lan]

Hi All,

I am using the LDF starter kit to parse an LDF file using LV 7.1

I have encountered a problem with the vi "LDF Check Number.vi" as attached.

Why does the 9th value cause the Case statement to return the default value even though the statement should accept 0-9 ?

This causes a problem for the 9th value for a signal in an LDF file as it uses the default instead of the value put in.  

[John.P]

Hi Mike, I have had a look at your code and it does behave quite strangely.  This appears to be a problem caused when using both a string as an input to the selector of your case structure, and using a “within range” case.  One potential solution to the problem is if you create seperate case statments for each of the values (0-9) instead of using a single statment then the VI functions as expected.  Alternatively if the input to the case selector was numeric the case would function as expected.  Additional code would be required to check if the string was a number, and then convert the string to a numeric.Hope this helps,John PorterAE
NI

[mike_lan]

Hi John,

Thanks for the reply, I reposted this query later in the CAN and DeviceNet section of the forum ( where I should have put it in the first place ! ), and it seems that its a small bug in the VI. Here's the post link,

http://forums.ni.com/ni/board/message?board.id=30&message.id=3823#M3823

Thanks again.