Meter2 Control Scale problem

[iDeeW]

Hi everybody,

Check the below picture. I have a guage control, a meter control & a meter2 control on the latest version of AdvancedHMI.
The meter & guage control works with no issues. But the meter2 controls is off!!
The value displayed in the PLCAddressText does not match with the PLCAddressValue.
My ValueScaleFactor is 1 for all meters.
Any ideas??

[bachphi]

You did not say what exactly are in PLCAddresstext and PLCAddressvalue. Perharps check MaxValue setting

[iDeeW]

Max value = 150
Min value = -150

the current value is 125

Thanks,

[Archie]

This is definitely an issue and it only occurs when setting for zero centered. This will be fixed in the next release.

[iDeeW]

Thanks Arch

[iDeeW]

Archie,

Thanks for updating the meter2 control on version t.

But now Meter2.vb crashes on communication fail.

Error msg:

Code: [Select]

{"Conversion from string "Com Error -999.No Values Returne" to type 'Double' is not valid."}
So as a quick fix I'm checking if the value is numeric before doing the scaling. Looks like the problem is no more.

But I'm sure you will addressed this in a more elegant manner.

Thanks,

[Archie]

Archie,

Thanks for updating the meter2 control on version t.

But now Meter2.vb crashes on communication fail.

Error msg:

Code: [Select]

{"Conversion from string "Com Error -999.No Values Returne" to type 'Double' is not valid."}
So as a quick fix I'm checking if the value is numeric before doing the scaling. Looks like the problem is no more.

I tried to replicate this by using a Modbus simulator. I added a Meter2 and set PLCAddressValue to 40001. Started the simulator and it showed the value, I then shut down the simulator. The result is an error message on the face of the meter, but no program exception.

[iDeeW]

Yes I tried it too. Same app did not crashed with my simulator.
But when I just pull the Ethernet cable from an actual modbus server it crashed with the above error.
 

[Archie]

How are you checking the Value before it gets to the Meter2?

[iDeeW]

In Meter2.vb -> Public Overrides Property Text()
This is how you have it right now...

Code: [Select]

..
...

If ValueScaleFactor = 1 Then
     MyBase.Text = value
Else
     MyBase.Text = value * ValueScaleFactor
End If
...
..

Below is my modification

Code: [Select]

If ValueScaleFactor = 1 Then
     MyBase.Text = value
Else
     If value Is NumericFormat Then MyBase.Text = value * ValueScaleFactor
End If

Thanks,

[Archie]

Ok.. So you are using PLCAdressText as well as PLCAddressValue ?

[iDeeW]

No. I only use the PLCAddressValue.

[Archie]

I see now.... the error is normally sent to the Text property, but when you have a ScaleFactor other than 1, it tries to scale a string. This will be fixed in the next release.