Environmental sensor as an extension for Kentix SmartPDU
External sensor for temperature, humidity, and dew point.
1. General
The basic settings of each device include the activation state (On/Off) as well as a name under which all alarms and warnings reported by this device are displayed. This should be chosen as uniquely descriptive as possible to be able to distinguish between devices.
Alarm Group
By selecting the parent alarm group, the device is integrated into the system hierarchy.
Alarms are signaled in the parent alarm group.
Alarm Delay
The alarm delay specifies how long a device should delay the signaling of an alarm after it has been detected. Example: With an alarm delay of 30s, the device waits 30 seconds before the alarm is signaled and reported.
Connection
Connection monitoring enables alarming when the device is not reachable.
| Alarm Assignment | Selection of the alarm assignment |
| Output as Warning | Connection loss does not trigger an alarm and is only reported as a warning. |
2. Measured values
Overview of the monitored measured values
2.1 General
Show on tile
Activate this option if the measured value should be directly visible on the device's overview tile.
Name
The displayed name of the data point. Use a clear designation so that the measured value can later be uniquely assigned (e.g., "Office room temperature").
Measured value type
Select the type of measured value, e.g., temperature. The selected type determines the representation, unit, and processing of the value in KentixONE.
2.2 Representation
Defines how the raw measured value is interpreted and later displayed.
Factor
The raw value of the sensor is multiplied by this factor to calculate the actual measured value.
Example: Raw value * 0.01 = displayed value.
Decimal places
Determines how many decimal places are used in the display.
Example: "1" means one decimal place (e.g., 23.4 °C).
Unit
Defines the unit in which the measured value is displayed (e.g., °C). If a measured value type is set, its default unit is automatically used.
2.3 Alarming
Define at which measured values an alarm or warning is triggered.
2.4 Data source
Configure how the measured value is read via Modbus RTU from the connected device.
Address
The bus address of the Modbus device. Each device in the Modbus network has a unique address.
Register
The register number from which the measured value is read (e.g., 1). The register defines the storage location in the device where the value is stored.
Data type
Indicates how the value is stored in the register, e.g., 16-bit integer. The data type determines the interpretation of the raw value (size, format, possible value ranges).
Function code
Defines the Modbus operation used, e.g., Read Input Register (04). The function code specifies how the register is read.
Word Order
Determines the order of data words in the register, e.g., Little-Endian. Important for multipart values to ensure the bytes are correctly assembled.
Sign representation
Specifies how negative values are represented, e.g., sign bit. This influences the interpretation of the raw value if the sensor can also provide negative measurements.
Interval
Specifies how often the measured value is read from the device. The value is given in seconds.
60s → The measured value is queried every 60 seconds.
3. Configuration
Overview of the write configuration
3.1 General
Here you define the name of the data point and determine whether the value should later be displayed on the device tile.
Name
The displayed name of the data point, e.g., Temperature offset. Choose a designation that clearly describes what the value is used for.
Configuration
Some devices require additional configuration values to correctly read a measured value. This value is passed to the data source and processed there.
Value
The configuration value transmitted to the set data source (e.g., 0). Depending on the device, this value may be required for calibration or activation of certain functions.
3.2 Representation
Formatting
Defines how the raw measured value is interpreted and displayed.
Factor
The raw value of the device is multiplied by this factor before it is displayed or further processed.
Factor 100 → Raw value * 100 = displayed value This factor is often used when devices deliver values in a different scale (e.g., 0.23 instead of 23).
3.3 Data source
Connection settings
Here, you define how the temperature offset value is transmitted or read via Modbus RTU to the device.
Address
The Modbus address of the device (e.g., 3). Each device in the Modbus network has a unique address through which it is addressed.
Register
The Modbus register where the value is written or read (e.g., 448). The register defines the storage location in the device.
Data type
Indicates how the value is stored in the register, e.g., 16-bit integer. The data type determines the size and interpretation of the raw value.
Function code
Defines the Modbus operation performed, e.g., Write Single Register (06). This function code is used to write a single value to a register.
Word Order
Determines the order of data words in the register, e.g., Little-Endian. Relevant for multipart values to ensure the bytes are correctly assembled.
Sign representation
Specifies how negative values are represented, e.g., sign bit. This influences the interpretation of the raw value if the offset may also contain negative values.