Omega Vehicle Security OMP-MODL - Manual (Page 249)

11.. . A PPENDIX A: M ASTER I CON R EFERENCE
U SING THE OMP-MODL 11-87
START/STOP CLOCK F UNCTION I CON
The Start/Stop Clock icon generates a Logic output that is a function of a User defined
time. Two different modes of operation are available, Absolute Start/Stop and Delayed
Start/Stop.
Absolute Start/Stop Mode: In this mode, the icon output is True for a User defined
window of time. The User can specify the Start and Stop dates and times.
Delayed Start/Stop Mode: The icon output goes True at a User specified elapsed
time after the OMP-MODL is Enabled, then stays True for a User specified
length of time before returning False.
NOTE: In both modes, after the Start/Stop clock `stops’, the OMP-MODL will continue to
be Enabled. However, any icons in the Net that are controlled by the Start/Stop icon will
not update. Alarms will remain in the state they are in when the Stop occurs.
A typical application of this icon is to enable an unattended OMP-MODL at some
particular future time, then disable after a period of time. The following Net illustrates that
application:
INPUTS:
Enable: Processing of icon is allowed when Enable pin is unconnected or
when connected and Enable signal is TRUE.
OUTPUTS:
Output Signal: Logic type. The Output is True during User defined time
windows.