Echelon IzoT NodeBuilder - Manual (Page 79)

Developing an HMI
You can create a human machine interface (HMI) for your device so that end users can monitor and
control it. You will typically create an HMI if you are building a complete system that requires one;
however, if your device is installed by integrators where each installation is unique, the integrators will
typically develop the required HMIs.
You can use the IzoT Commissioning Tool to design a simple HMI for your device. With the IzoT
Commissioning Tool, you use the data point shape in the IzoT CT Basic Shapes stencil and standard
Visio shapes to create the HMI. For example, you can create an HMI that displays the current state of
a lamp and provides override switches that let you manually turn the lamp on and off. For more
information on creating HMIs with data point shapes, see Chapter 6 of the IzoT Commissioning Tool
User’s Guide.
You can use high-end HMI tools, such as Wonderware’s InTouch or Intellution FIX, to represent more
complex types of network interactions. These tools are developed with a scripting language tuned to
specifically address HMI tasks. In addition, these tools offer components that provide reporting and
analysis, history, alarm logging, event handling, and Internet-enabling.
Creating a Device Installation Application
You can create an installation executable that automatically installs all the files required by your
device into the appropriate locations on your customers’ computers. The files that your application
should install include the device application (if your device uses downloadable application memory),
the device interface file, user-defined resource files, the IzoT CT stencil, the IzoT device plug-in, and
the HMI. Typically, the installation executable is created using an installation application such as the
InstallShield
®
product.
If your device will be installed in a managed network (as opposed to a self-installed network), your
customers must have an IzoT, OpenLNS, or an LNS network tool such as the IzoT Commissioning
Tool already installed on their computers. Installing an IzoT, OpenLNS, or an LNS network tool
creates a LonWorks folder that is stored by default in the root directory or program files directory on
the user’s computer (for example, C:\Program Files (x86)\LonWorks). The user, however, can
change the location of the LonWorks folder when they are installing the IzoT, OpenLNS, or LNS tool.
You can locate the LonWorks folder in the Windows registry at the following location:
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