FactoryTalk View Studio question

terry56

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• May 1, 2012

• #1

If I use a numeric display, connection tag is {[well10]levelValue[1]} the HMI works, but use a connection tag such as {[well10]levelValue[arrayNum]} the display is '***'. Any ideas???

 

Operaghost

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• May 1, 2012

• #2

Arrays do work, so something isn't quite right. Can you post a screenshot of the Tag Browser window?

OG

 

terry56

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• May 1, 2012

• #3

here is the screenshot of real tag.
File attached.

 

VAN

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• May 1, 2012

• #4

Does your expression show as true (it doesn't look right) and what number does the expression give when running, if it gives one, is it the right one?

 

bernie_carlton

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• May 1, 2012

• #5

In my experience you can't use an array index as a variable, it must be a number. Thus the connection cannot change at run time.

 

terry56

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• May 1, 2012

• #6

Thanks Bernie,
I got the same answer as you but did not know whether it was true or not. Thanks for the help.