Omron DST1-ID12SL-1 Operation Manual page 62

Maintenance Functions of DST1-series Safety I/O Terminals
Measuring 0.5-second ON Time
Measuring 1.5-second ON Time
38
In Figure A, the actual ON time is 0.5 seconds x 3, or 1.5 seconds. Operation
is ON only once when measurements are made, however, so the time is mea-
sured as 1 second.
Reading taken approximately every second.
0.5 s
Figure A
In Figure B, the actual ON time is 0.5 seconds x 3, or 1.5 seconds. Operation
is ON twice when measurements are made, however, so the time is measured
as 2 seconds.
Reading taken approximately every second.
0.5 s
Figure B
In Figure C, the actual ON time is 1.5 seconds x 2, or 3 seconds. Operation is
ON four times when measurements are made, however, so the time is mea-
sured as 4 seconds.
Reading taken approximately every second.
1.5 s
Figure C
Section 1-7