Rockwell Automation 1757-SWKIT3200 ProcessLogix R320.0 Installation and Upgrade Guide - Manual (Page 219)

Publication 1757-IN032B-EN-P - April 2001
New Functions and Features 6-3
Common SCM’s
Provides for one SCM to run against up to 100 equipment units. The
parameters for these units will be contained in a spreadsheet
configured in Control Builder. Binding to the specific equipment unit
is at run time and can be changed by the SCM.
A common SCM is not assigned at build time to a specific batch unit,
but is assigned to a unit at run-time. The choices of what equipment a
common SCM can be assigned to at run-time are configured at build
time using an Alias Table.
The user defines aliases that represent equipment parameters. The
alias table is a matrix that associates aliases with the parameters the
alias may resolve to at run-time. The number of aliases and the
number of different instances define the size of the matrix.
An additional feature (related to Common SCMs) of SCM Batch
Enhancements is expansion of the Unit definition to a system-wide
unit definition. This feature expands the role of units in the system
and allows more than one CM/SCM to share the same unit definition.
The unit may control which instance parameters are assigned in the
alias table at run-time.
10 1757-PLX52s per Server
The number of controllers per server has been increased to 10 single
PLX52s or 10 redundant pair. 10 Non-Redundant PLX52s can also be
supported when Ethernet is selected for the ProcessLogix Supervisory
Network.
1784-PCIC Card
This is a new PCI Bus based ControlNet Bridge card. This card
replaces the 9904-KTCX15 card as the Supervisory ControlNet
hardware interface in the ProcessLogix Server. With increased CPU