Well I learned something new today...and I am now confused all over again!
@Mtn_Skier read through my post explaining checksum calculation from some time back:
Post in thread 'Forscan for 2022'
https://www.fordtremor.com/threads/forscan-for-2022.5886/post-138592
Additional background if you want to know more: Hexadecimal is used for character efficiency. In the world of computers everything breaks down into 1s and 0s called "bits". 8 of those bits grouped together is called one "byte" as in kilobyte, megabyte, gigabyte.
Since each bit can have 2 states (1 or 0) one byte can represent 256 different states = 2 raised to the power of 8.
It takes 8 characters to represent this:
Ex: 10000010
128x1=128
64x0 = 0
32x0 = 0
16x0 = 0
8x0 = 0
4x0 = 0
2x1 = 1
1x0 = 0
Total = 130
In regular decimal it takes 3 characters:
Ex: 130
100x1 = 100
10x3 = 30
1x0 = 0
Total = 130
In Hexadecimal it only takes 2:
Ex: 82
16x8 = 128
1x2 = 2
Total = 130
The characters you see in the As-Built memory addresses are all groups of 2 digit hexadecimal numbers including the address location itself:
724-01-01 is made up of 07, 24, 01, 01. When you calculate the checksum you need to include these as well...
Happy to answer any questions, and as
@MiTremor906 said, you just have to let it all sink in and it will make sense.