Rockwell Automation 1785-Vx0B, D17856.5.9 PLC-5 VME VMEbus Programmable Controllers User Manual - Manual (Page 22)

Chapter 1
Overview
1-11
The PLV-5/VME processor status files in the processor status area are
different in several ways.
When floating point values are converted to integer, they are rounded
differently. 6008-LTV rounds 0.5 to the next highest integer, the
PLC-5/VME processor rounds to the nearest even integer.
CPU driver programs are affected in these ways:
The low-level protocol for how commands are given to the processor
and how command-sending errors are reported is significantly different.
However, the higher-level interfaces (e.g., the commands themselves)
are compatible.
The manner in which the VME setup interface parameters are
configured is significantly different:
In the: The information is in the:
PLC-5/VME processor configuration registers in the A16 space.
6008-LTV processor “Slave 0” global memory in the A16 space.
See chapter 3 for more information.