[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())

[Mikhail]

Also, try specifying a byte order. For 16-bit float it could be 2301.

[Mikhail]

Hello,
Usually, you should remove 4x from register address. Address of register 40000 is 0.

[Mikhail]

Hello,
Formulas work with current data. To solve this task, Elastic Report Plugin can help. It can calculate the difference. See the example here.

[Mikhail]

Hello,
The related answer is here
If the motor change its state not too often, you can check it every minute and add a channel value if it is on.

[Mikhail]

In Rapid SCADA the general syntax of the formula would be
EveryMin(() => MyFunc())

[Author]

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