DVPES32 PLC - Floating point problems

[roro36]

Ok, i'll start with what I can do:
ADD K1 D500 D500
That line adds 1 to register d500 and stores it back in register d500
Its a 16bit machine and when it comes to multiplying numbers its just not big enough. So I want to use the floating point number and have it stored across 2 registers.So we try a simple addition to see if we can get this to work:
DADDR F1 D500 D500
The line reads add floating point 1 to d500 and store it in d500. What gets stored in d500 however is something like 100234257523547, not quite what I was looking for?

Any clue?

 

[bernie_carlton]

I don't know your PLC but are you sure that the DADDR is meant for floating point addition? And are you viewing the result as a float and not as a double integer?

 

[roro36]

Attached the instruction

The instruction is attached along side.

 

[mjoubert]

Why do you want it to be floating point, if you are only adding whole numbers and not fractions?

Are you using a one shot event to trigger the calculation? If not, your register will fill up very quickly.