Series Output Instructions

[G_DeMark 2]

In Logix 5000 you are allowed to put multiple output instructions in series.  I am curious how this works if you put two copy (COP) instructions in series at the end of a rung.  In this case will the first COP execute and finish before the second COP begins?  Or will they both execute in parallel?

[IO_Rack 178]

From left to right, top to bottom, each will execute and complete.

[Gerry 13]

But...

beware that the COP instruction executes the copying one byte at a time and can be interrupted by higher priority tasks at any point. If the data being copied originates from I/O or DNet or ENet, etc. or from a periodic task, it is likely that it will change during the copy. If that matters to your application (usually would) use CPS instead of COP.