Dynamic text change to "error" if chanel value greater than specified value

[ns.fariz]

Hi Mikhail,

I have device connected via modbus protocol. And I have connected to its sensor, but I want dynamic text to show “error” when sensor reading is greater than 150. Can it be achieved with formula?

Thanks,

[Mikhail]

Hi,
If channels is displayed as number, you can’t display “Error”. You can display error on a separate text component.

[Mikhail]

Hi,
If channels is displayed as number, you can’t display “Error”. You can display error on a separate text component.

[ns.fariz]

Hi Mikhail,
What’s your suggestion, I just need it it to pass the value to dynamic text when it read <150.

[manjey73]

Can try a formula that any number will translate to text and if the number is less than or greater than the desired range, to make an inscription Error ?

That is, in fact, any correct number will be text and not the number itself.

Never tried that.

[manjey73]

public double ToASCII(double can)
{
string test = String.Format(“{0:F2}”, can);
if (can > 3.5) test = “Error”;
return ScadaUtils.EncodeAscii(test);
}

Make an additional channel, put it in the Format – ASCII Text and use a similar formula. Specify the desired number of decimal places. It is better to add a couple of input variables for Min and Max to set in the formula… Output as Dynamic text.

[manjey73]

public double ToAscii(double channel, double min, double max)
{
string s = String.Format(“{0:F2}”, channel);
if (channel < min || channel > max) s = “Error”;
return ScadaUtils.EncodeAscii(s);
}

353 Extra Channel – use formula ToAscii(Val(532), -1, 3.45)
Format – Text ASCII

353 – The channel, which we will display as Dinamic text and two values for minimum and maximum

• This reply was modified 7 years, 2 months ago by manjey73.

[ns.fariz]

Hi Manjey,

That is, in fact, any correct number will be text and not the number itself.

No that I want, can I make it display number? , and if it’s value greater than desired number, it will turn “error” or something else. Because when sensor get faulty, it will show value 65535,

[Mikhail]

If sensor returns 65535, set channel data to undefined. Try the formula:
Cnl; Cnl >= 65535 ? 0 : CnlStat
The right part of the formula defines channel status.

• This reply was modified 7 years, 2 months ago by Mikhail.

[manjey73]

ns.fariz Yes, the scheme will look like numbers, except for the conditions that you specify. It works, I checked 🙂 But the status can be changed color, but I did not check

[ns.fariz]

Hi Manjey,

Your formula is too complicated to me, for now I stick with Mikhail solution. Thank you for your help everyone.

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