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February 4, 2026 at 10:59 am in reply to: Boolean Tags from SUPCON OPC DA Server Not Reading Correctly in 6.4.4 #17616
MikhailModeratorHello,
For the tag ND00020000 try select System.Boolean data type in the device options (in Communicator).
In the communication line log there is no data for ND00020000. It means that the OPC server does not sent it. Maybe, add ND00020000 to another subscription.
MikhailModeratorHi,
1. To set data points manually, use the utilities.
2. To recalculate differences, send a command to the module. Command example:cmd=Calculate startDT=2024-02-26 10:00:00 endDT=2024-02-26 11:00:00Time in UTC.
MikhailModeratorHello,
The examples are here
https://github.com/RapidScada/scada-v6/tree/master/ScadaWeb/OpenPlugins/PlgMain/wwwroot/custom
MikhailModeratorI suggest to configure a project on a modern x64 machine, and then upload the project on the x86 machine. In this case, the Administrator app is not needed on x86.
MikhailModeratorThere is a chance that it is possible, but no one has tried.
Try to download and install .NET x86 and 32-bit version of OPC Core Components.
Did you install “OPC Core Components Redistributable (x86) 3.00.108.msi” ?
MikhailModeratorIn the mimic provided, I edited the instance of AI_Nameplate, bound the Alm property to the channel 104. I use the Hello World project. An image blinking properly when the channel 104 is On.
MikhailModeratorThe object is not blinking.
This is because the object in the example is not visible. I will check why.
MikhailModeratorHello,
the text alignement center don’t work
To center text horizontally, set a fixed text width.
MikhailModeratorHi,
> is there a specification of the dat file format?
Yes. Please search in Additional documentation> How to export complete historian data to csv?
Use the utilities.January 22, 2026 at 11:31 am in reply to: Regarding the issue of recalculation the “Calculated tags” #17592
MikhailModerator🙂
MikhailModeratorA device tag is not null event if it is not bound to a channel.
You should initialize device tags in the driver logic in the InitDeviceTags method.
According to your first message, you already have device tags. For tests, try DeviceTags[0]
MikhailModeratorI suggest to use DAT and PostgreSQL archives in parallel. In that case, you have 2 copies of data, fast performance when read DAT format, flexibility when read using SQL.
MikhailModeratorHi,
Is it possible to transfer historical data to the database from the dat archive?
There is no direct converter. If you decided to develop it, I could help.
Using the existing tools, you can export data to CSV, and then import it back from CSV to Rapid SCADA. When importing, data is sent to the Server service which writes it to the active archives.
MikhailModeratorIf the connection is lost, will the data be supplemented in the central SCADA after it is restored?
This feature is implemented by Rapid Gate Module as noted by manjey73.
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