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There are no trend points in the Hollyland DCS – how to fix it?

2019-02-19View Original

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There is no trend for any point in the Hollyland DCS – how to fix it? Please provide the detailed steps!
Reply #22019-02-19
Only points marked as historical can be used for curve statistics. How can one determine whether a point is historical or how should it be set?
Reply #32019-02-20
This is a BUG in Rockwell Automation: when you right-click on a measurement point at some stations, the trend cannot be viewed. So how can one view the trend? Just move the cursor over the measurement point, hold down the left button to drag it into the trend view, and you’ll be able to see the trend
Reply #42019-02-20
For the MACS V6 system, open AutoThink – Hardware Configuration, locate the point at which trends need to be recorded; there is a HISCP acquisition period setting, change it to 00:00:01, then save and install it. Then, the project controller saves and compiles it again, and downloads it to the historical station. Note: After downloading to the historical station, it is necessary to click on “Apply Data”. That’s basically it. I haven’t worked with versions prior to MACS V6, so I’m not sure how to do it.
Reply #52019-02-20
Yeah, the operation of the K series is really disgusting. . . . Also, the default range for intermediate variables is one hundred
Reply #62019-05-28
There’s a mistake here; I made it last time. When downloading, the controller automatically switches over because of automatic redundancy, so it’s necessary to download it again so that the controller switches back. In fact, even if the program is downloaded to A while B is still in use, it’s possible to switch manually back to B

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