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Search FAQs

Can I show auxiliary lines on the Historical Trend Graph?

You can set three auxiliary lines: Upper Limit, Lower Limit, and Standard.
You can easily determine whether an error has occurred or not.
NOTE
1.To use Auxiliary Lines, the [Display Method] in the [Input/Display Settings] area must be set to [Show Scale].
2.
To use this feature, your screen editor must be GP-Pro EX Ver. 2.20 or above.
How to set up
1.Set [Sampling].
2.Place a Historical Trend Graph part and make settings.
Setup of [Auxiliary Line]
(1)On the [Graph] tab, click [Extended].
(2)Set the [Display Method] in the [Input/Display Settings] are to [Show Scale] and set the [Lower Limit] and the [Upper Limit].
(3)Open the [Auxiliary Line] and check the [Draw Line] box. Set each of the [Upper Limit], [Standard], and [Lower Limit]
e.g.) Setting the [Upper Limit]
Specify Display Position
ConstantDisplays the Auxiliary Line at the position specified in the [Display Position].
AddressEnables to vary the display position of the Axiliary Line according to the value stored in the address specified in the [Displayed Position].
Display Position
Set the display postions of the Auxiliary Lines.
e.g.)Lower Limit = 0, Upper Limit = 500 when specifying [Show Scale]
If you set [Specify Display Position] to [Constant] on the [Auxiliary Line] tab and set the [Upper Limit] to 400, [Standard] to 200, and [Lower Limit] to 100, the graph will be shown as below.