Rockwell Automation 1757-SWKIT5000 ProcessLogix R500.1 Installation and Upgrade Guide - Manual (Page 248)

Publication 1757-IN500A-EN-P - September 2002
11-8 Performance and Capacity Specifications
• Database Modification in Progress, Try Again Later
• Point Build Error
In extreme cases these errors may cause Control Builder to stop functioning. If
this happens, you should restart the Control Builder and reload the server
points to ensure that the changes take effect. Data should not be affected.
Server Redundancy
Database synchronization is performed as a background activity and is
performed online without affecting the operation of the Servers. Time
to perform synchronization will depend on the system configuration
(e.g., database size, history, processor speed).
Table 11.F Server redundancy specifications
Server Redundancy
Server Switchover Time – Default 30-40 sec
Server Switchover Time – Fastest Configurable Time 10 sec
On Server switchover, the 1757-PLX52 performs an event recovery. This causes the
controller to report all current alarm conditions. The Server will report all current process
alarms and events.