Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual page 249

3. Instructions
2. Turn OFF the execution condition for the timer instruction.
The timer will be reset when its execution condition turns OFF.
The timer will start timing again when its execution condition turns ON.
With this method, a timer cannot be reset and then restarted within the same cycle.
0.01
TIM
ON
Timer input
CIO 0.01
OFF
Timer PV
T0010
ON
Completion
Flag
OFF
T0010
3. Use the RESET TIMER/COUNTER instruction.
The specified instruction will be reset when the RESET TIMER/COUNTER instruction (CNR/CNRX) is
executed.
More than one timer can be reset at the same time for CNR/CNRX, but more time is required than for
TRSET.
CNR/CNRX is used in the same way as TRSET.
212
0010
#100
The timer cannot be reset and then
restarted within the same cycle.
CS/CJ/NSJ Series Instructions Reference Manual (W474)