An example in detail

What’s explained:

1. The terminal inventory

• After successfully logging on to the web interface of the logic hub you will see in the left column the tab Terminal inventory.

  Click on the images to enlarge.

  

• You are able to add W&T devices or devices from other manufacturers.

• To incorporate an MQTT-capable W&T device, simply click on ADD W&T TERMINALS

  

• Then enter the device article number, e.g. 57730 as well as the device name. This can be found either on the web interface of the W&T device under Communication Paths and then under MQTT, or using the last 6 places of the MAC address: wut-(last 6 places of the MAC). Now click on "Determine terminals" and save. Your W&T device is now linked to the logic.hub. Don’t forget to activate MQTT under the communication channels and enter the IP address of the broker (logic.hub).

• To link third-party devices, simply click on the plus symbol

  

• All you have to do is enter the name, an optional description and the MQTT topic and fill in the remaining fields to get started.

  

• It is essential to include each device in the terminal inventory, otherwise you will not be able to work with these devices on the logic.hub.

2. Orientation in the Logic Editor - Nodes

• You can access the editor via the corresponding link on the overview page of your logic.hub.

• On the left-hand side of the editor, you will find a list of nodes that are categorized according to their functions.

• To use a node, simply drag and drop it onto your workspace.

  

• To obtain a short description, drag the node onto the workspace; a short description now appears on the right.

• By clicking on the node, you can also adjust it to your requirements on the right-hand side.

• Depending on the type of node, many other properties can be configured.

3. Orientation in the Logic Editor - Workspace

• The workspace is located in the center of the logic editor and is used to create your flows.

• New pages can be added using the plus symbol Create new page in the middle of the workspace.

  

• The page can be edited in the right-hand column, e.g. to change the name.

4. Orientation in the Logic Editor - Info column

• The information column on the right-hand side shows you information on the elements you have selected, depending on the work step.

• You will also find two additional symbols in the information column:

• The error log can alert you to possible errors or problems.

• The check mark shows you whether the Runner is connected.

5. Creating a sample flow

• The logic.hub requires no additional nodes or links to be downloaded.

• For example, to synchronize a temperature, you can add a web thermometer to the page and use the node CONST.

  

• For the node CONST select the analog mode and enter the temperature that the sensor should not exceed.

  

• To compare a value, we use the "GE" node (switches to TRUE (1) as soon as the value at the input is equal to or greater than the comparison value - in our case CONST).

  

• The output now switches at the same temperature or when this exceeds the preset analog value.

  

• Alternatively, you can connect a Web-IO digital output to the output of the "GE", e.g. in order to to turn on a lamp or trigger an acoustic signal if the thermometer value is exceeded. You can also visualize the output of the Web-IO in the dashboard.

• To visualize the values and the temperature, we create a dashboard for the application.

• You can also access the dashboard via the overview page of your logic.hub.

• Click on the plus to be able to ADD DASHBOARD and provide the dashboard with an LED label and a ticker label.

  

• To the LED label you add the output of the Web-IO Digital and to the Ticker label the analog value of the Web Thermometer. You can add a header to the dashboard as you wish by using the header label under Full Width tile. You can also give the whole thing an individual touch by labelling and color-coding the tiles.