iNetGrow DO-E Module

DO-E Modules

The DO-E modules provide four optically coupled outputs. In addition, the DO-E module supports a digital temperature probe (T-SP1), a combined temperature and relative humidity probe (TH-Probe), and an analog input which is typically used in conjunction with a light intensity probe (Light Probe)

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 DO-E modules use iNetGrow a T-SP1 and a TH-SP to provide two temperature measurements. The T-SP1 and TH-SP probes measure temperature digitally and require no calibration. Select the units to be Fahrenheit or Celsius.

Relative humidity input

The DO-E modules use iNetGrow TH-SP Probe to measure relative humidity. This digital combined temperature and relative humidity sensor requires no calibration. The module supports one probe. Select the units to be Fahrenheit or Celsius.

Light intensity input

The DO-E modules have an analog input, which is typically used with an iNetGrow Light Probe to measure light intensity. The Light Probe is an analog sensor, which yields a measurement from 0 to 100 (percent).

Outputs

The outputs are optically coupled. They can withstand up to 24 V AC or DC when off and conduct up to 250 mA when on. They withstand a surge current of up to 750 mA. The outputs are designed to be used with the typical 24V AC solenoids that used in irrigation systems. In this sense, they replace a dry contact (switch). 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 (see schematic).

Alarms

The DO-E 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.