Continuous Data Retrieval

[V0rtex]

Hi

There is information that I constantly get from PLC. I show a pop-up to the screen in error situations.

if(PLC_Fault_Data.powerOK and not PLC_Muhur.powerOK)
    {
        PLC_Muhur.powerOK=true;
        ShowMessage(tr("Güç Kesildi."));
        writeToLogTableError(tr("Güç Kesildi."));
        SendEmail(tr("Hata"),tr("Güç Kesildi."),false,"","");
    }
    else if (not PLC_Fault_Data.powerOK and PLC_Muhur.powerOK)
    {
         PLC_Muhur.phaseFault=false;
    }

PLC_Fault_Data My boolean info from PLC.
PLC_Muhur, on the other hand, is a structure that I only use on the rising edge and the falling edge.

Since the program is constantly running, with this method, I only pop-up once on the screen when an error occurs.
Is there a better way?

[JonB]

@V0rtex said in Continuous Data Retrieval:

Since the program is constantly running, with this method, I only pop-up once on the screen when an error occurs.

Why? I don't follow what makes it only pop-up once. If you want more than once, clear whatever error condition so that you can re-detect next time and re-show?

I would have thought this code is running in a thread, since you say it is "constantly running"? If so this thread cannot show a UI pop-up, you must emit a signal for the UI to slot onto and display a message?

Separate issue: do you really want to write C++ using and/or/not? I know they "work", but 99% of the rest of the world use &&/||/!.