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Timer and Counter Instructions Section 3-6
Basic Timer Specifications
The following table shows the basic specifications of the timers.
Note 1. TIM PVs are refreshed at execution, at the end of program execution each
cycle, or every 80 ms by interrupt if the cycle time exceeds 80 ms.
2. TIMH(015)/TIMHX(551) PVs are refreshed at execution, at the end of pro-
gram execution each cycle, and every 10 ms by interrupt.
3. TIMU(541), TIMUX(556), TMUH(544), and TMUHX(557) are supported by
CJ1-H-R CPU Units only.
4. It is not possible to read the timer PVs of TIMU(541), TIMUX(556),
TMUH(544), and TMUHX(557).
5. Timers are refreshed at different times depending on the timer number.
Refer to the descriptions of individual timer instructions for details.
Timer Operation
The following table shows the effects of operating and programming condi-
tions on the operation of the timers.
Note 1. TIMU(541), TIMUX(556), TMUH(544), and TMUHX(557) are supported by
CJ1-H-R CPU Units only.
Item TIM/
TIMX(550)
TIMH(015)/
TIMHX(551)
TMHH(540)/
TMHHX(552)
TIMU(541)/
TIMUX(556)
(See note 3.)
TMUH(544)/
TMUHX(557)
(See note 3.)
TTIM(087)/
TTIMX(555)
TIML(542)/
TIMLX(553)
MTIM(543)/
MTIMX(554)
Timing method Decrement-
ing
Decrementing Decrementing Decrementing Decrementing Incrementing Decrementing Incrementing
Timing units 100 ms 10 ms 1 ms 0.1 ms 0.01 ms 100 ms 100 ms 100 ms
Maximum SV TIM: 999.9 s
TIMX:
6,553.5 s
TIMH: 99.99 s
TIMHX:
655.35 s
TMHH:
9.999 s
TMHHX:
65.535 s
TIMU:
0.9999 s
TIMUX:
6.5535 s
TMUH:
0.09999 s
TMUHX:
0.65535 s
TTIM: 999.9 s
TTIMX:
6,553.5 s
TIML:
115 days
TIMLX:
49,710 days
MTIM: 999.9 s
MTIMX:
6,553.5 s
Outputs/instruc-
tion
11111118
Timer numbers Used Used Used Used Used Used Not used Not used
Completion Flag
refreshing
At execution At execution At execution At execution At execution At execution At execution At execution
Timer PV
refreshing
(See note 5.)
See note 1. See note 2. Every 1 ms
At execution
At execution At execution At execution At execution At execution
Value
after
reset
Com-
pletion
Flags
OFF OFF OFF OFF OFF OFF OFF OFF
PVs SV SV SV --- (See note 4.) 0 SV 0
Item TIM/
TIMX(550)
TIMH(015)/
TIMHX(551)
TMHH(540)/
TMHHX(552)
TIMU(541)/
TIMUX(556)
TMUH(544)/
TMUHX(557)
TTIM(087)/
TTIMX(555)
TIML(542)/
TIMLX(553)
MTIM(543)/
MTIMX(554)
Operating mode
change
PV = 0
Completion Flag = OFF
--- ---
Power interrupt/reset PV = 0
Completion Flag = OFF
--- ---
Execution of
CNR(545)/CNRX(547)
Binary: PV = FFFF, Completion Flag = OFF
BCD: PV = FFFF or 9999, Completion Flag = OFF
Not applica-
ble
Not applica-
ble
Operation in jumped
program section
(JMP(004)-JME(005))
Operating timers continue timing. Timer status is maintained.
Operation in inter-
locked program sec-
tion (IL(002)-ILC(003))
PV = SV
Completion Flag = OFF
Timer status
maintained.
PV = SV
Completion
Flag = OFF
Timer sta-
tus main-
tained.
Forced
set
Comple-
tion Flag
ON --- ---
PVs Set to 0. --- (See note 2.) Set to 0. --- ---
Forced
reset
Comple-
tion Flags
OFF --- ---
PVs Reset to SV. --- (See note 2.) Set to 0. --- ---
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