Rockwell Automation 20D PowerFlex 700S with Phase I Control Reference Manual - Manual (Page 114)

114 Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013
Chapter 1 Detail Drive Configuration and Operation
For example:
When copying a floating-point value into an integer register, the length will be 2.
A single precision IEEE floating-point value uses 32-bits. These means two, 16-
bit integers are required to properly transmit the data.
When copying two integer values (the low and high word of 32-bit data) into a
floating-point register, the length will be 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 handle 16 bit integers, so the reference has to be handled
differently to account for references above 32767 or below -32768. The following
example shows how to transmit references less than twice base motor speed, but
does not show the logic for the block transfer I/O messages. See Chapter 4 of the
20-COMM-R User Manual for an example program for the block transfer I/O
messages.