iNetGrow TRHF Module

TAF Modules

The TAF modules are custom modules that are used with aspirated temperature and humidity sensors. They have two digital temperature inputs, two analog inputs, and two 5VDC outputs. The outputs are suitable to drive low voltage fans.

The configuration dialog organizes the settings under several tabs. Common to many tabs are check boxes to indicate whether the input or output is used, and buttons to set or get their current values. The buttons named “Refresh” makes the necessary sensor readings and conversions before the value is displayed. You must apply any changes in the configuration by clicking on the “Apply” button before you may view the values.

Module information

You may give the module a more meaningful name by typing it in the text box and clicking the “Apply” button. A window shows module information, such as its hardware ID (HID) and version.

Temperature inputs

The TRHF modules use the iNetGrow T-20 Temperature Probe. These digital temperature sensors require no calibration. The module supports two probes. Select the units to be Fahrenheit or Celsius.

Analog inputs

The TAF modules use support 0-to-5VDC analog inputs or ratiometric sensors.

Outputs

The outputs supply 5VDC up to 100 mA. They are intended to drive low-power loads such as small fans. The two buttons “Default on” and “Default off” determine the state of the output when the system resets. For example, immediately after power is applied, the state of the output is this default state.

Alarms

The TRHF module has a beeper. You may turn off the beeper by un-checking the box. You may also manually turn the beeper on or off. This is sometimes a handy tool to identify a module among many others.

Names

The names given to the inputs and outputs are important. The controller identifies the inputs and outputs not by their module number but by their name. The controller needs to access these inputs and outputs when it logs data, or when it performs automated tasks. Refer to the topic “Named Variables” in the main help files for more information.