Graph Time scaling problem

[shwemyatmann]

Hi ,

Can someone pls kindly help to check my vi.. i am having problem with x axis time scaling. Had play around with the properties for time format but the x axis time shown Date and Time wrongly.

My project need to  monitor Temperature graph for 12 hrs or 24 hrs or if possible need to view back previous 3 days..

Pls kindly help me with Real time scaling...

Thanks and Regards,

Brian

[altenbach]

Your chart data has no timing information. Set t0 of the chart to the current time when the program starts and set dt to the loop time.

What's your reasoning behind the "AND TRUE" code, that does not do anything useful at all.

[shwemyatmann]

Hi Altenbach,

May i know where do i find or set t0 and dt? In the properties?

AND TRUE is for if temperature +/- 5 deg C of optional value it will prompt alert..

Thanks and Regards,

Brian

[altenbach]

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shwemyatmann wrote:

May i know where do i find or set t0 and dt? In the properties?

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Create a property node for the chart. It this is giving you problems do a few tutorials first.

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shwemyatmann wrote:

AND TRUE is for if temperature +/- 5 deg C of optional value it will prompt alert..

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What do you think would happen of you would delete the TRUE diagram constant and the AND function and you would just wire  directly to the indicator? Same thing! (See also this long thread)