Rockwell Automation 20D PowerFlex 700S with Phase I Control Reference Manual - Manual (Page 39)

Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013 39
Detail Drive Configuration and Operation Chapter 1
SLC/PLC-5 System
Reference/Feedback Programming
The reference is scaled so that base motor speed = 32768. The SLC/PLC-5 does
not use DINT, and only handles 16 bit integers, so the reference has to be
handled differently to account for references above 32767 or below -32768. The
example on the following page shows how to transmit references less than twice
base motor speed.