[Mikhail]

Based on your experience, which solution would you consider the most reliable?

Using the Status tag.

[Mikhail]

I disabled the device in the line configuration to simulate a communication error or a device fault.

This test simulates the service shutdown, but not a device failure.
To simulate a device fault, switch off the device.

[Mikhail]

Note that the registration key in ScadaWeb.log differs than the entered key. Make sure that after uploading the project and restarting the web application, the key file PlgDashboard_Reg.xml is updated in the C:\Program Files\SCADA\ScadaWeb\config directory

[Mikhail]

Hi,
In the script, executed by the Server service, it is possible to get the name (and other properties) of the current formula’s channel only.
Getting names of any channel by channel number is available in the code of a software module that can be developed by you.

• This reply was modified 3 months ago by Mikhail.
• This reply was modified 3 months ago by Mikhail.

[Mikhail]

How do you disable the device?
The solution depends on whether the device is in a physical error state or whether the device is disabled in the software settings.

[Mikhail]

It is better.
We can see that the dashboard view type is recognized (icon in tree), but the page is not found. Press F12 to check the console what URL is not found.

[Mikhail]

All values are gray. You should check that Communicator is running and the device data is being updated in Communicator.
Gray color means that data is not coming from Communicator to Server.

• This reply was modified 3 months, 1 week ago by Mikhail.
• This reply was modified 3 months, 1 week ago by Mikhail.

[Mikhail]

Rapid SCADA 6.4.5 has been released.
– New mimic diagrams and components have been updated.
– Historical data reading has been implemented in the OPC UA driver.
– Bug fixes.

[Mikhail]

Thanks.
The settings look correct.
According to ScadaWeb.log, you use
ScadaWeb 6.2.1.0 (April 01, 2025)
PlgDashboard 6.1.1.0 (August 26, 2025)

I suppose, they are incompatible. I suggest to upgrade the web application to ScadaWeb 6.2.3.0 (December 20, 2025)
Version history is here.

[Mikhail]

Hi,
In your case, you don’t need to create a separate command node in the Modbus template. An element could be read and written if it is not readonly.

[Mikhail]

Using formula CnlStat > 0 ? 0 : 1 is also possible. But the method described above is simpler.

[Mikhail]

Hello,
Just create a new channel of the Calculated type, and set the Tag Code field to Status
The device field of the channel should refer to the certain device.
Then upload the project changes and check value of the newly created channel.
Provide a screenshot of your settings if it doesn’t work.

• This reply was modified 3 months, 1 week ago by Mikhail.

[Mikhail]

Access to the files is denied.

[Mikhail]

ScadaWeb.log is OK.
To add a screenshot, publish it on Google Drive, and post link here.

[Mikhail]

Hello,
Please send the details from ScadaWeb.log and screenshots of the settings related to the issue.

[Author]

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