If you have not downloaded it to the PLC then it will not update, although the registers and bits will show the state, the logic is not being called so your values will not be transferred to the registers.
you really need to get a handle on how it all works it's a bit like a pile of earth a bucket something to transfer the earth to the bucket the bucket is there (D Register)but the earth (your constant value) and the spade (your Move instruction) is not in the PLC only in your file so monitoring the code will only show the variables in the PLC.
Yes M72 will turn on and off & the D register will show the current value as these are memory areas in the PLC, however, the logic tying them together is not.