Rockwell Automation 1771-VHSC , D17716.5.74 Very High S - Manual (Page 26)

1–18 Overview of the Very High Speed Counter Module
6. Your ladder program can use/or move the data (if valid) before it
is written over by the transfer of new data in a subsequent
transfer.
In this chapter you learned how your module operates, and how your
module communicates with the programmable controller.
Chapter Summary