Questions about Siemens vb0 and vw0

Your study ideas are very good. I gave you a simulation. The following is for your reference.

Fill in 3 2 4 1 in VB0, VB 1, VB2 and VB3.

Fill in 100 200 65 38 in VB4, VB5, VB6 and VB7, and run it as follows:

The decimal values of vw0, vw 1 and vw2 are as follows:

The decimal system of VW4, VW5 and VW6 is as follows: VW4 and VW6 are positive values and VW5 is negative values.

V-zone data structure attached with 200 series PLC (there is a problem with the original translation and it has been corrected);

In addition, as a hint (or you are already using it), you can use the programmer mode that comes with the calculator to help you analyze the contents of some data:

For example, input VB0=3 VB 1=2, that is, input 000001000010 to get VWO decimal (DEC) value of 770;

I hope the above is helpful to you.