[Mikhail]

Hi,
I see. It would be handy. For now, there is no ready to use solution.
If there is a business need and you could sponsor that feature, I could create a prototype of the module that will become a part of Rapid SCADA.

[Mikhail]

Hi,
An implementation depends on the driver. What communication protocol do you use?

[Mikhail]

Communication works well.
What tag data is displayed on the device data page? Could you clarify the question?

[Mikhail]

Hi,
I suggest to create a separate trigger that exports only the channels that are not exported. It would be useful to create a new table in the DB for them. It can help to realize the cause of the problem.

[Mikhail]

Good. This is a common task that many people ask.

[Mikhail]

Hi,
Channel formulas work only with current data. To calculate differences (e.g., power consumption), I suggest Elastic Report Plugin.

[Mikhail]

Hi,
Could you clarify your question?

[Mikhail]

Could you make a screenshot of the log?

[Mikhail]

Hi,

I use sendcommand sending about 30 commands to virtual device per second and the base session will be suspended. The session will wait until the cmd is handeld.

If commands require heavy processing, implement a queue to process them in background.

I use the writcurdata method to send data to the server and persist the data to a dat file.

To analyze the issue, you should use a debugger or log files.

[Mikhail]

Linux is preferable for a cloud server.

[Mikhail]

I suggest to deploy Rapid SCADA on a cloud server provided by Microsoft Azure, Google Cloud, Amazon, Digital Ocean or your local provider.

[Mikhail]

Hi Zeus,

When I use the send command function to write a large amount of data to a virtual device, the session will be suspended.

What amount of data you try to send using a command?

When I use writing curdata to a virtual device, if the frequency is low, the data will become 0.

Could you explain?

[Mikhail]

Available at https://rapidscada.net/store/Module/en/ExtTrendJP

[Mikhail]

Check Communicator – Communication Lines – Your line – Line Stats – Line Log

[Mikhail]

Hi,
Something like (not tested)

public double CountTime()
{
  return Val(101) > 0 ? Val() + 1 : Val();
}

101 – channel that stores the machine state
Then use this formula in a channel of the Calculated type: EveryMin(() => CountTime())

[Author]

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