I'm glad you solved this, i'm just posting for others who may find this thread.

Scaling tags is pretty simple using the scaled and unscaled values boxes. You don't need to solve for any offset in a y=mx+b style equation as that is handled for you in VTScada.

If you look at your given value for two known points and provide the scaled values for the same two points. You will find these in the tag properties for I/O tags such as the I/O and Calc tag (which is the tag type to use for most I/O and calculations).

Here is an example which I hope might simplify things:

Let's say that you have a device sending temperatures in celsius and you want to show those values in Fahrenheit.

We can use the boiling and freezing points as our known values for the scaling. In the unscaled boxes, use 0 and 100, then in the scaled boxes enter 32 and 212 and that is all you need to do.

I'm glad you solved this, i'm just posting for others who may find this thread.
Scaling tags is pretty simple using the scaled and unscaled values boxes. You don't need to solve for any offset in a y=mx+b style equation as that is handled for you in VTScada.
If you look at your given value for two known points and provide the scaled values for the same two points. You will find these in the tag properties for I/O tags such as the I/O and Calc tag (which is the tag type to use for most I/O and calculations).
Here is an example which I hope might simplify things:
Let's say that you have a device sending temperatures in celsius and you want to show those values in Fahrenheit.
We can use the boiling and freezing points as our known values for the scaling. In the unscaled boxes, use 0 and 100, then in the scaled boxes enter 32 and 212 and that is all you need to do.

Trihedral Engineering Ltd.