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Setting up a trend in RSlogix500


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#1 mracer

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Posted 15 May 2007 - 12:17 PM

I have a machine that I would like trend an analog and 2 digital tags at the same time.
The analog is the position of an air cylinder and has a range of 500 to 28000.
The other 2 points are the outputs that run the valves for the cylinder. These points are digital.
Is there a way to set up this on the same trend.
Thanks
mracer

#2 Ron Beaufort

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Posted 15 May 2007 - 12:45 PM

try this as an experiment ...

on the “Y-Axis” tab, turn on the “Isolated Graphing” check box ... also turn on the “Each pen on independent scale” selection ...

on the “Pens” tab, make sure that your digital pens are set for “0 to 1” scale ... make sure that your analog pen is also set up correctly ...

basic idea: this should give you three separate horizontal graphs running on the same screen ... it may take some trial and error - but I’ve got a hunch that this is what you’re looking for ...

hope it helps ...

Best regards,
Ron
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#3 mracer

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Posted 15 May 2007 - 01:00 PM

try this as an experiment ...

on the “Y-Axis” tab, turn on the “Isolated Graphing” check box ... also turn on the “Each pen on independent scale” selection ...

on the “Pens” tab, make sure that your digital pens are set for “0 to 1” scale ... make sure that your analog pen is also set up correctly ...

basic idea: this should give you three separate horizontal graphs running on the same screen ... it may take some trial and error - but I’ve got a hunch that this is what you’re looking for ...

hope it helps ...



Great, Thanks Ron.

That is going to make the day go much better. :shrug:

Marv.

#4 wrenchforhire

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Posted 16 May 2007 - 12:27 PM

You might want to set the scale on the digital inputs from 0-2, that way your trace stays in the center when the input is on. I set one up and it prints out daily as a tracking report, the trace was easier to see that way.




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