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Device: A physical piece of equipment that we monitor, for example, power, temperature or humidity on.
Sensor: A measuring entity for a device, for example current on phase L1, return air humidity.
Measurement: A specific measurement for a sensor, has a timestamp.
Sensor Mapping (ITA): For power distribution devices there is a feature in ITA where you can take a specific sensor and say which circuit that sensor monitors. This is called sensor mapping and is not the same as what happens in the DDF files.
Typical steps to verify that the DDF is correct
1. Verify if the device shows up in EcoStruxure IT
Go to Planning > Device Association > Unassociated Devices.
If the devices do not appear in IT Advisor, check the following: - Verify that the external system configuration points to the correct Data Center Expert server. - Verify that the device is in Data Center Expert, and verify that you can see the devices using the DCE web services. - The device types that ITA does not understand are shown with type 'Unknown'. See DCE Sensor Mapping to ITA
2. Verify that temperature and humidity sensors are shown in ITA
The sensors are listed underneath each devices in the Unassociated Devices view. It isnotnecessary to associate the device to see the temperature and humidity sensors.
ITA_Temperature_sensor_360006791257.png
Only temperature and humidity sensors that have a sensor type in the list below are recognized by ITA. Temperature sensor types: EXTERNAL_TEMPERATURE SUPPLY_AIR_TEMPERATURE RETURN_AIR_TEMPERATURE INTEGRATED_TEMPERATURE RACK_INLET_TEMPERATURE UNIT_TEMPERATURE
Normally when you associate a device from the unassociated devices view, the device disappears from the list. The devices however remain in the list if it has related temperature or humidity sensors as they are shown as children in the tree structure.
Note
Temperature and humidity sensors are only shown when the 'Retrieve sensors' checkbox on the second page in the configuration wizard is checked.
ITA_Temperature_sensor_2_360006791257.png
3. Verify that power and amps measurements are shown in ITA
On the device of interest, right-click and choose 'Properties'. In the properties dialogue, unfold the External Systems entry and select the Device subpage.
ITA_Device_properties_360006791257.png
The power and amps measurements should show here. It is not necessary to associate the device to see if the power and amps measurements are recognized.
ITA_Measurement_property_page_360006791257.png
For the measurements to show a number of requirements must be satisfied:
The DDF file must list the InputPhaseCount and OutputPhaseCount, and they are expected to be the same. Furthermore the BankCount is also needed in some cases.
The following power sensors are recognised by ITA:
OUTPUT_POWER_WATTS
OUTPUT_POWER_TOTAL_WATTS
MODULE_OUTPUT_POWER
MODULE_BREAKER_POWER
The following amp sensors are recognized by ITA:
MODULE_BREAKER_CURRENT
OUTPUT_CURRENT
OUTPUT_CURRENT_TOTAL
INPUT_CURRENT
Make sure that the DDF adheres to the following table
ISXCDevice - Supplemental
ISXCSensor
PhaseCount
BankCount
Index
SensorType
Device example
1
1
Ignored
OUTPUT_POWER_TOTAL_WATTS
rack PDU
1
>1
1 digit = Bank number
OUTPUT_POWER_WATTS
rack PDU with banks
1
-
Ignored
OUTPUT_POWER_TOTAL_WATTS
3
1
1 digit = Bank number
OUTPUT_POWER_WATTS
UPS or (RM)PDU
3
>1
2 digit = Module, Phase
MODULE_OUTPUT_POWER
Modular PDU
3
-
1 digit = Bank number
OUTPUT_POWER_WATTS
Example list of power sensors and how ITA understands them
Single phase rack PDU or phase-phase rack PDU, with one bank (PhaseCount: 1, BankCount: 1):
Index
SensorType
Interpretation by ITA
Ignored
OUTPUT_POWER_TOTAL_WATTS
The total power measurement for the rack pdu
Single phase rack PDU or phase-phase rack PDU, with three banks (PhaseCount: 1, BankCount: 3):
Index
SensorType
Interpretation by ITA
1
OUTPUT_POWER_WATTS
The power measurement for the rack pdu's bank 1
2
OUTPUT_POWER_WATTS
The power measurement for the rack pdu's bank 2
3
OUTPUT_POWER_WATTS
The power measurement for the rack pdu's bank 3
Ignored
OUTPUT_POWER_TOTAL_WATTS
Total measurement for the rack pdu
Three phase rack PDU, with one bank (PhaseCount: 3, BankCount: 1):