Q1: Why digitals don’t show up when CPU’s LED light normal?

Please try to make CPU module exit and insert it into the DCS again, and make sure the module is work under the standard voltage value 5V-24V.

Q2: No signal show after engineering download, but hardware setup software can see the current.

Please make sure system including real-time software are still in the running before download, and if any error in algorithms, there will be no signal as well.

Q3: How to delete the history record?

Delete the “hdata” folder, then the history record will be deleted, but note that the 

data can not be recovered any more.

Q4: How to delete alarm history data?

Delete the “alarm” folder under the engineering files, then the history alarm will be deleted, but note that the data can not be recovered any more.



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