Allen Bradley COP slc function help

[veoteveo]

Hello,

I need to copy values from one location to another.
example N10:0 (N10:1, N10:2...etc) to N10:10 COPY to
N11:0 (N11:1, N11:2...etc) to N11:10.
the values in each N address are unsigned intergers, either 1 or 5 intergers.
How do I use the lenght function?

thanks

 

[bernie_carlton]

This shows the format

 

[doug2]

Length = How many contiguous words that you want to copy.

 

[Ken Roach]

Important:

Length = number of contiguous elements you want to copy.

When both the source and destination are Integer words, then the number of elements is the number of words.

But if either the source or the destination is a different data type, the number of elements of the destination determines how much data is transferred by the COP instruction.

For example: if the source was an Integer and the Destination was a Floating Point element, the COP instruction would take two integers from the source for every one Floating Point element in the destination.

This is more important in RSLogix 5000 than RSLogix 500, but it's still worth being specific.

In your case, veoteveo, the Length argument is the number of elements = the number of integer words.

 

[bernie_carlton]

While doug2 is correct in this case the length is actually in terms of the target items. If you are copying unlike things ,let's say N registers to Timers, then the length would be in terms of how many timers, each taking 3 words. Yes, it is possible to copy a whole timer.

Ken you're just too fast.

 

[doug2]

Important:

Length = number of contiguous elements you want to copy.

Thanks Ken.
In hindsight it would have been more helpful to explain using other examples than the one he gave.
You bailed me out again.

 

[veoteveo]

Thank you both for the kind assistance. May you have an excellent day.
Regards, Veoteveo.....