[Mikhail]

a value greater than 0, such as 5, and then I have to read addresses 0x1000 to 0x1005 to get 5 events

You can send a command to poll the device using Automatic Control Module. Then try to generate events with the same module. Before developing a new driver, it’s worth trying.

From such a driver, would I be able to read any ModBus device registers and generate SCADA events based on them?

Yes.

is there a minimal example of a ModBus device driver available that I could follow?

Check the existing drivers, especially DrvModbus, DrvEnronModbus and DrvSimulator.

• This reply was modified 10 months, 2 weeks ago by Mikhail.

[Mikhail]

Hi,

According to Modbus Parser, the following data is requested:
https://ibb.co/bjB7xMyC

Does it match the Modbus register map?

[Mikhail]

Hi,
Probably, you can read the most recent event from the fixed Modbus address. Then you will get it as channel values. How will you process those channel values?

[Mikhail]

Hi,
Could you copy the packets from the communication line log as text?
They can be found in a text file in the logs directory.

[Mikhail]

Hi,
You need to upgrade to Rapid SCADA 6 to use that feature.

[Mikhail]

Hi,
Please copy a part of the communication line log to check data packets, and provide screenshots of the Modbus template.

[Mikhail]

Hi,
I sent a response on July 08. Is it put in the spam folder?

[Mikhail]

Thank you for noticing the bug.

[Mikhail]

ModDiffCalculator is discussed here. It’s free and useful.

[Mikhail]

Everything look fine except Auto Report Module automatically export the Event Report even I didn’t activate it.

It’s a bug. Will be fixed in the next version.

[Mikhail]

Everything look fine except Auto Report Module automatically export the Event Report even I didn’t activate it.

Restart the service after changing the configuration.

[Mikhail]

Hi,

After I change culture to en-GB, no errors at log and excel file (Historical Data Report & Elastic Report) when I opened them.

The PlgElasticReport.zh-Hans.xml file includes a line
<Phrase key="WorksheetName">工作表{0}</Phrase>
Likely there is some forbidden character.
Try replacing that line by the similar line from PlgElasticReport.en-GB.xml

• This reply was modified 10 months, 3 weeks ago by Mikhail.

[Mikhail]

In case of Modbus coils
Cmd > 0 ? 0 : 1

[Mikhail]

Hi,
In the output formula of the channel, put something like
Cmd > 0 ? 0xFF : 0x00
If it doesn’t work, make screenshots.

[Mikhail]

Hello,
To do that, add a new function in the Scripts table, and then use it in a channel.

public void MyFunc()
{
  SetData(501, Val(500), 1);
  SetData(502, Val(501)-Val(500));
}

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