Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 376)

F ACTORY T ALK V IEW S ITE E DITION U SER ’ S G UIDE
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To change Health Monitoring Policy Settings
1. In FactoryTalk View Studio, in the Explorer window, expand the System folder,
double-click the Policies folder, and then double-click the System Policies folder.
2. Double-click Health Monitoring Policy, and then select the policy setting you want to
change.
3. Click the amount of time for the policy setting. To select a different time, click the up
or down arrow beside the time.
About network glitches
Sometimes communications across a network are temporarily disrupted, for fractions of
seconds, by noise or brief disconnections.
When this happens, it is possible for the Standby server in a redundant pair to lose contact
with its Active partner, and assume it must become the Active server.
To prevent the Standby server from becoming active before it is necessary, the health
monitoring system distinguishes a temporary disconnection—called a network glitch—
from an actual communications failure.
If the Standby server can re-establish contact with its Active partner within a set time
period, then it remains on standby. If the time period expires before contact is re-
established, then the Standby server becomes the Active server.
Settings in the System folder, including the Health Monitoring Policy Settings, are stored at the
FactoryTalk Network Directory, and apply to all application servers the directory manages.