Chapter 6: Using SNMP
170
Configuring the Hysteresis
You can configure the hysteresis values using the SNMP set command.
Different from the Dominion PX web interface, SNMP accepts only integer
values as the hysteresis values so decimal point values will be rejected.
To set a decimal point value, you must use the web interface to change the
hysteresis values.
See
A Note about Untriggered Alerts
(on page 142) for a description of
how a hysteresis value works.
Disabling Outlet Switching
Using the SNMP set command, you can disable the switching of outlet
states on your Dominion PX device.
For any Dominion PX device not implemented with the outlet switching
function, such as an inline monitor, you should always disable the
switching function.
Refer to the Dominion PX MIB for more details.
This feature is configurable through SNMP only. Firmware upgrade does
not affect this setting.
Setting Data Retrieval
You can use the SNMP set command to configure the data
retrieval-related settings.
Use "dataLogging" for enabling or disabling the data retrieval feature.
Use "dataLoggingInterval" or "measurementsPerLogEntry" for setting
the sampling period.
The dataLoggingInterval (sampling period) is equal to the value of
measurementsPerLogEntry times three. For example, if the
measurementsPerLogEntry is set to 20, the sampling period becomes
60 seconds (20x3=60).
Tip: To use the web interface to configure the data retrieval-related
settings, see
Enabling Data Retrieval
(on page 65).
Retrieving Energy Usage
You can discover how much energy an IT device consumes by retrieving
the Active Energy for the outlet this IT device is plugged into. An SNMP
manager can send an SNMP get request for an outlet's outletWattHours
value. The value returned is the number of WattHours consumed by the
target outlet.