Associating an AnalogNumeric Object with Text Library

[BURAKUSLU]

Hi there,
Is it possible to associate an AnalogNumeric object with text library? In my project, there is an AnalogNumeric object which displays actual temperature of the enviroment. If there is a sensor failure, it displays 31000 which does not make sense for the end user. Can this AnalogNumeric object display a text if its value is 31.000? If yes, does this text have to be in the text library?

Regards,
Burak

[AMitchneck]

You can set the AnalogNumeric to display string and add an expression like the following:

Code: Select all

( ((float)value) == 31000.0f ? "Error" : ((float)value).ToString("0.00"))

This expression displays the tag value with two decimal points if it is not equal to 31000, otherwise it displays Error. (For more information, see C# custom number formatting https://msdn.microsoft.com/en-us/librar ... 10%29.aspx.)

[Transistor]

Or, if you have an alarm bit in the PLC, then set the visibility of the AnalogNumeric object to turn off with the alarm bit and show a text object instead.