Omron SYSMAC C200HS Operation Manual page 151

Timer and Counter Instructions
Example 2:
Extended Timers
00000
TIM 001
TIM 002
Example 3:
ON/OFF Delays
00000
00500 00000
TIM 001
TIM 002
00000
00500
5.0 s
There are two ways to achieve timers that operate for longer than 999.9 sec-
onds. One method is to program consecutive timers, with the Completion Flag of
each timer used to activate the next timer. A simple example with two 900.0-sec-
ond (15-minute) timers combined to functionally form a 30-minute timer.
TIM 001
TIM 002
In this example, 00200 will be turned ON 30 minutes after 00000 goes ON.
TIM can also be combined with CNT or CNT can be used to count SR area clock
pulse bits to produce longer timers. An example is provided in 5-14-4 COUNTER
– CNT.
TIM can be combined with KEEP(11) to delay turning a bit ON and OFF in refer-
ence to a desired execution condition. KEEP(11) is described in 5-9-4 KEEP –
KEEP(11).
To create delays, the Completion Flags for two TIM are used to determine the
execution conditions for setting and reset the bit designated for KEEP(11). The
bit whose manipulation is to be delayed is used in KEEP(11). Turning ON and
OFF the bit designated for KEEP(11) is thus delayed by the SV for the two TIM.
The two SV could naturally be the same if desired.
In the following example, 00500 would be turned ON 5.0 seconds after 00000
goes ON and then turned OFF 3.0 seconds after 00000 goes OFF. It is neces-
sary to use both 00500 and 00000 to determine the execution condition for TIM
002; 00000 in an inverse condition is necessary to reset TIM 002 when 00000
goes ON and 00500 is necessary to activate TIM 002 (when 00000 is OFF).
TIM 001
TIM 002
S
KEEP(11)
R
3.0 s
Address Instruction
00000 LD
#9000
900.0 s
00001 TIM
00002 LD
#9000 900.0 s
00003 TIM
00200
00004 LD
00005 OUT
Address Instruction
00000 LD
#0050 005.0 s
00001 TIM
00002 LD
003.0 s
#0030
00003 AND NOT
00004 TIM
00005 LD
00500
00006 LD
00007 KEEP(11)
Section 5-14
Operands
00000
001
# 9000
TIM 001
002
# 9000
TIM 002
00200
Operands
00000
001
# 0050
00500
00000
002
# 0030
TIM 001
TIM 002
00500
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