Omega Vehicle Security OMP-MODL - Manual (Page 129)

7... H YPER N ET ™ I CON B ASED P ROGRAMMING
U SING THE OMP-MODL 7-12
U PDATE (B LUE )
Update commands are a special type of signal that is generated
ONLY by Sample Rate Clock icons. This signal is connected to
the Update input on icons and commands them to update their
outputs. As with the other signal types, HyperNet only allows
Update signals to be connected to Update type terminals on
icons.
Adding Signal Connections Between Icons
Connections between two icons are drawn by locating the mouse
cursor over the first icon’s terminal (note how the cursor changes
when properly located over a terminal), clicking and holding the
button down, then dragging a connection line to the second icon’s
terminal and releasing the button.
The direction that signal connections can be dragged on the
workspace is limited to minimize potential problems with feedback
and/or race conditions. Connections can only be drawn from the left
to the right on the workspace.
During the connection process, HyperNet checks and disallows
recognized illegal connections such as:
♦
Differing terminal types cannot be interconnected. For
example, a Data terminal cannot be connected to a
Logic terminal.
♦
Output terminals can only connect to Input or Enable
terminals.
♦
Connections cannot be made between terminals on the
same icon
S IGNALS COMMUNICATED VIA
LOGIC TYPE C ONNECTIONS
E XAMPLE I CONS WITH LOGIC T YPE
T ERMINALS
T RUE OR F ALSE C ONDITIONS I NPUTS TO R ELAY A LARM ICONS
O UTPUTS FROM C OMPARATORS
E NABLE INPUTS TO S AMPLE R ATE C LOCKS
I NPUT TO M ESSAGE ICON
O UTPUT FROM S TART /S TOP C LOCK
I NPUTS TO C OUNTERS
Table 7... -3: Example Logic type signals and icons
S IGNALS COMMUNICATED VIA
UPDATE TYPE C ONNECTIONS
E XAMPLE I CONS WITH UPDATE T YPE
T ERMINALS
T HE UPDATE COMMAND
GENERTED BY THE S AMPLE R ATE
C LOCK ICON
I NPUT ICONS HAVE AN U PDATE TERMINAL
Table 7... -4: Example Update signals and icons