Emerson PACSystems RX3i - CPU Features and Specifications; Common CPU Features

Application Guide Chapter 5
GFK-2928C Oct 2019
PLC Hardware Configuration 19
%AI configured for length=0
%AQ (as needed)
%R (as needed)
%W (as needed)
Optionally, there is one symbolic variable that may be included in the synchronized data
transfer list. It is in the program logic block named AUTO_SW. The variable ACTV_CSB must
be included in the Input Transfer List if you wish to perform automatic role switches based
upon the loss of devices on a GCG.
Figure 22: Include ACTV_CSB in Input Transfer List
Output Transfer Points
%I configured for length=0
%Q typically configured to the highest reference used for physical outputs, as a
minimum
%M (as needed)
%G (as needed)
%AI configured for length=0
%AQ typically configured to the highest reference used for physical outputs, as a
minimum
%R (as needed)
%W (as needed)
5.4 Configure the Built-in Ethernet Port of the CPU
The RX3i CPU includes two built-in Ethernet ports that share an 80-bit diagnostic/status
reference. The recommended starting reference is %I16385.