Omega Vehicle Security OMP-MODL - Manual (Page 126)

7... H YPER N ET ™ I CON B ASED P ROGRAMMING
U SING T HE OMP-MODL 7-9
A simple application of the Enable input might be in an
engine temperature recording application. A Thermocouple
icon may be enabled / disabled by a Logic signal that is True
when the engine ignition is ON. With this configuration,
temperature recording will only occur when the engine is
running.
The Enable input can also be used for optimizing the speed
of Program Nets and/or minimizing the amount of data
collected as the processing normally done by an icon in a
Program Net is not performed if the Enable input is False.
For example, a Program Net may be built that has several
input temperatures that are scanned on a fairly high speed
basis. By use of the Enable terminal, the data flow to OMP-
MODL memory may be disabled during normal operating
conditions and enabled when abnormal temperature
readings are detected.
U PDATE I NPUT T ERMINAL
The Input signal icons (Thermocouple, VDC, GPDI, etc) are
all equipped with an Update input terminal located in the
center top of the graphic. Whenever this Update terminal
receives an Update command, it proceeds to update its
output terminal value (assuming that its Enable terminal is
True or not connected).
U PDATE O UTPUT T ERMINAL
The Sample Rate Clock and the Warm-up icon have a
special output terminal located at the bottom center of the
graphic called an Update output terminal. This terminal
sends a command to the connected icon to Update its
output (eg take a sample, process an equation, etc).
Details on the Sample Rate Clock and the Warmup icon are
covered in the Master Icon Reference in Appendix A .
Configuring Icons
Most of the icons within HyperWare must be configured before they
can be used. User configuration entails selection of various icon
operational parameters such as names, input ranges, sampling
rates, etc and is simply done through dialog boxes associated with
each icon.
To configure an icon that has been placed on the workspace,
double-click on the graphic and an Icon Configuration dialog box will
appear. Each icon has a unique dialog box with programmable
parameters to meets its needs. However, many parameters are
common to the different types of icons. A Thermocouple Input icon
Configuration Dialog is shown in Figure 7... -11 and a description of
configuration parameters typically seen in a configuration dialog box
follow.