Omega Vehicle Security OMP-MODL - Manual (Page 252)

11.. . A PPENDIX A: M ASTER I CON F ILE R EFERENCE
U SING T HE OMP-MODL 11-90
P ERIODIC O UTPUT F UNCTION I CON
FUNCTION:
The Periodic Output Icon generates a Square Wave/Pulse output based upon time values
entered by the user in the configuration dialog box. When the icon’s Enable pin goes HI,
the output remains LOW for a specified period. The output then goes HI for a user defined
period before going back to a LOW state. This cycle is then repeated a specified number
of times or continuously. There are two modes of operation that define the icon’s behavior
when its Enable pin returns LOW, Reset Upon Disable, and Suspend While Disabled.
Reset Upon Enable: In this mode, whenever the Enable input goes from HI to LOW,
the operation is reset. The next time the Enable pin goes HI, the cycle starts
from the beginning.
Suspend While Disabled: In this mode, whenever the Enable input goes from HI to
LOW, the operation is suspended. All timers are put on hold while the
Enable is LOW. The next time the Enable goes HI, operation continues
where it left off.
The above net displays a typical application. The Periodic Output Icon is used to cycle a
OMP-MODL Relay Output On and Off at regular intervals.
Another possible application is to insert a time delay into an Event (Logic Type) signal
branch.
NOTE: At least one Sample Rate Clock icon is required in every net program. This icon
must always be enabled (Enable pin disconnected or ON).
INPUTS:
Enable: Processing of icon is allowed when Enable pin is connected or
when connected and Enable signal is TRUE.
OUTPUTS:
Output Signal: Logic Type. The output is TRUE during user defined time
windows.