1347
CJ-series Instruction Execution Times and Number of Steps Section 4-2
4-2-34 Special Function Block Instructions (CPU Unit Ver. 3.0 or Later
Only)
4-2-35 Number of Function Block Program Steps (CPU Units with Unit
Version 3.0 or Later)
Use the following equation to calculate the number of program steps when
function block definitions have been created and the instances copied into the
user program using CS/CJ-series CPU Units with unit version 3.0 or later.
Note The number of instruction steps in the function block definition (p) will not be
diminished in subsequence instances when the same function block definition
is copied to multiple locations (i.e., for multiple instances). Therefore, in the
above equation, the number of instances is not multiplied by the number of
instruction steps in the function block definition (p).
SINGLE
WORD DIS-
TRIBUTE
DISTC 566 4 3.4 3.4 3.5 --- 19 18.1 Data distribute
5.9 5.9 7.3 --- 39.5 38.5 Stack operation
DATA COL-
LECT
COLL
C
567 4 3.5 3.5 3.85 --- 24.9 29.7 Data distribute
8 8 9.1 --- 22.1 25.3 Stack operation
8.3 8.3 9.6 --- 25.5 31 Stack operation
1 word FIFO
Read
2,052.3 2,052.3 2,097.5 --- 8,310.1 7,821.1 Stack operation
1,000 word FIFO
Read
MOVE BIT MOVB
C
568 4 4.5 4.5 4.88 --- 28.1 22.1 ---
BIT
COUNTER
BCNT
C
621 4 4.9 4.9 5 --- 30.6 28.8 Counting 1 word
1,252.4 1,252.4 1284.4 --- 5,814.1 5,223.8 Counting 1,000
words
Instruction Mne-
monic
Code Length
(steps)
(See
note.)
ON execution time (µs) Conditions
CPU6
@H-R
CPU6
@H
CPU4
@H
CPU4
@
CJ1M
exclud-
ing
CPU11/
21
CJ1M
CPU11
/21
GET VARI-
ABLE ID
GETID 286 4 14 14 22.2 --- 23.4 21.3
Instruction Mne-
monic
Code Length
(steps)
(See
note.)
ON execution time (µs) Conditions
CPU6@
H-R
CPU6@
H
CPU4@
H
CPU4@ CJ1M
exclud-
ing
CPU11
/21
CJ1M
CPU11
/21
Number of steps
= Number of instances × (Call part size m + I/O parameter transfer part size n × Num-
ber of parameters) + Number of instruction steps in the function block definition p
(See note.)
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