Alarm History using Strings

EasyBuilder Pro Q&A
Alarm History using Strings
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  • HMI Model: CMT2078X
  • EasyBuilder Pro Version:6.10
    I have an Weintek cMT2078X HMI and I’m picking up where someone else left off on a project and they were at the point in creating a Screen with an Alarm History. Now I tried looking for a video or example online but the issue is that in the PLC program the faults are in the format of a “String” and I was unable to find an example of an alarm history using strings. Any idea on how to create an alarm history in Weintek using Strings?
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Hi @SteveV,

Please refer to this video example, which covers configuring the Multi Watch (Dynamic Message) feature in the Event (Alarm) Log.

You will want to use the string syntax.

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Typically, in a 3rd party HMI IDE it utilizes bit/Boolean tags to trigger alarms and get them recorded. The event messages are entered by programmers manually within Event Log dialog. This way the HMI will only pull out of Boolean tags from the PLC and monitor their state to see if they meet the trigger condition.
In your PLC program, the faults are in the format of a “String”. These may just be used/referenced within the PLC/PLC software. Or you can display an ASCII object to show the “String” data on the HMI screen. Due to specific string specification of some PLC string, the Watch function within Event Log may not display the full characters of a string due to the HMI framework.