487
Instruction Execution Times and Number of Steps Section 10-5
10-5-18 Interrupt Control Instructions
Note When a double-length operand is used, add 1 to the value shown in the length
column in the following table.
10-5-19 High-speed Counter and Pulse Output Instructions (CJ1M CPU21/
22/23 CPU Units only)
Instruction Mnemonic Code Length
(steps)
(See
note.)
ON execution time (µs) Conditions
CPU6@H-R CPU6@HCPU4@HCPU4@ CJ1M
excluding
CPU11/21
CJ1M
CPU11/21
SET INTERRUPT
MASK
MSKS 690 3 25.6 25.6 38.4 39.5 44.7 42.9 ---
READ INTER-
RUPT MASK
MSKR 692 3 11.9 11.9 11.9 11.9 16.9 15.9 ---
CLEAR INTER-
RUPT
CLI 691 3 27.4 27.4 41.3 41.3 42.7 44.5 ---
DISABLE INTER-
RUPTS
DI 693 1 15.0 15.0 16.8 16.8 30.3 28.5 ---
ENABLE INTER-
RUPTS
EI 694 1 19.5 19.5 21.8 21.8 37.7 34.4 ---
Instruction Mnemonic Code Length
(steps)
(See
note 1.)
ON execution time (
µs) Conditions
CPU6@H-R CPU6@HCPU4@HCPU4@ CJ1M
excluding
CPU11/21
CJ1M
CPU11/21
MODE CONTROL INI 880 4 --- --- --- --- 77.00 80.4 Starting high-speed
counter comparison
--- --- --- --- 43.00 43.0 Stopping high-
speed counter com-
parison
--- --- --- --- 43.40 48.8 Changing pulse
output PV
--- --- --- --- 51.80 50.8 Changing high-
speed counter PV
--- --- --- --- 31.83 28.5 Changing PV of
counter in interrupt
input mode
--- --- --- --- 45.33 49.8 Stopping pulse out-
put
--- --- --- --- 36.73 30.5 Stopping
PWM(891) output
HIGH-SPEED
COUNTER PV
READ
PRV 881 4 --- --- --- --- 42.40 43.9 Reading pulse out-
put PV
--- --- --- --- 53.40 65.9 Reading high-
speed counter PV
--- --- --- --- 33.60 30.5 Reading PV of
counter in interrupt
input mode
--- --- --- --- 38.80 40.0 Reading pulse out-
put status
--- --- --- --- 39.30 66.9 Reading high-
speed counter sta-
tus
--- --- --- --- 38.30 34.5 Reading PWM(891)
status
--- --- --- --- 117.73 145.7 Reading high-
speed counter
range comparison
results
--- --- --- --- 48.20 48.5 Reading frequency
of high-speed
counter 0
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