Rockwell Automation 1757-SWKIT5000 ProcessLogix R500.1 Installation and Upgrade Guide - Manual (Page 247)

Publication 1757-IN500A-EN-P - September 2002
Performance and Capacity Specifications 11-7
Control Builder Considerations
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.
Control Builder supports multi-user functionality, however, it should be noted
that there are some operations that are restricted. Specifically, if a load is
carried out at the same time as database modifications are in progress
(including import, copy, delete), then these operations may fail, displaying
related error messages. Examples of such errors include:
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 Stations Connected to one Server 20
Maximum Number of Concurrent Users Connected to one Server.
See Table 11.G Server communication NetBIOS session capacity
on page 11-9.
Unlimited for Windows 2000
Sever based system
Table 11.E Multi-user CB/FLM Operational Limits
Multi-user CB/FLM 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
Maximum Fieldbus Library Manager Clients connected to a single server 1
Table 11.D Operational Display Update Rates