User`s manual

9
Networking
SentryPlus is comprised of two modules: SentryPlus Service and SentryPlus Monitor. You
may run both the programs in a computer to monitor your localized UPS or run the programs in
two different computers.
Operation Modes
SentryPlus Service can operate in "Master" Mode (which allows SentryPlus to send
commands to its connected UPS) in "Serial Slave" mode (which listens to its connected
UPS) or in "Networking Slave" mode (which obtains the UPS information from Master via
the network). If two or more computers are communicating with a single UPS, only one of
these computers should be in Master mode; the others should be in Slave mode to prevent
them from sending contradictory commands.
When a power event occurs, the Master gets the information then transmits it to the
Slave(s). Each SentryPlus Service executes different "Actions"(FlexEvent) so that the
system manager can configure different strategies into each different computer. For
example: When a power failure occurs, the file server and mail server will not shutdown
until the UPS battery is low, but other less important workstations execute shutdown after
5 minutes, and the initial workstations shutdown after 10 minutes. Shutting down
workstations preserves more battery power for your mission critical network servers.