When Global Data is activated, the status of a Global Data variable is displayed on the screen.
The window is displayed as below:
A Global Data variable can have the following status:
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Not configured: white
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SUB variable: subscribed variable received in the health timeout limit, green
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Faulty SUB: subscribed variable not received in the health time out limit, red
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PUB variable: published variable, green
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Default PUB: published variable not updated within the allotted period, yellow
