Rockwell Automation 1757-SWKIT3200 ProcessLogix R320.0 Installation and Upgrade Guide - Manual (Page 249)

Publication 1757-IN032B-EN-P - April 2001
Performance and Capacity Specifications 7-9
User Interface Capacity and
Performance
Table 7.G Operational display update rates
Maximum Continuous Display Update Rate 1 sec
Typical Field Change to Display Update Time with 100 Parameters
Per Display on a Single Station/Server
(Server configured for 1 sec update) < 2 sec
Typical Display Call Up Time with 100 Parameters on a Single
Station/Server
(Call up time is dependent on display complexity; this excludes
the first initial call up.) < 2 sec
Maximum Number of Concurrent Users Connected to one Server.
See Table 7.M Server communication NetBIOS session usage on
page 7-12 for information that may affect the number of Stations
that may be connected simultaneously. 20
Table 7.H Multi-user CB operational limits
Maximum CB Clients connected to single Server 4
Remote Access Service (RAS) support for Multi-User CB Not Supported
Dial-up Networking support for Multi-User CB Not Supported
Minimum continuously available Network Bandwidth required for each
multi-user CB Client. 128KB
ATTENTION
!
Viewing the expanded Monitoring Tab Tree View of
the same 1757-PLX52 Controller loaded with more
than 500 total CMs, SCMs and IOMs from more than
one CB client simultaneously, will severely affect the
performance of the 1757-PLX52 Controller’s
communication capability, both to the Server and
Peer-to-Peer.
Using multiple CB clients to load to multiple
controllers simultaneously actually increases the overall
load time. Do not employ this technique as a way to
save time in loading a controller with contents.
Database operations (load, delete, upload, update, etc.)
initiated from a CB client will affect the performance of
applications that run on the backup Server. Remote CB
clients will also be affected by these operations. For
instance, a CB client will experience reduced
performance if another CB client is also connected to
the same Server and has requested a large database
operation.