480
Cycle Time
Section 7-3
Execution times for most instructions depend on whether they are executed
with an ON or an OFF execution condition. Exceptions are the ladder diagram
instructions OUT and OUT NOT, which require the same time regardless of
the execution condition. The OFF execution time for an instruction can also
vary depending on the circumstances, i.e., whether it is in an interlocked pro-
gram section and the execution condition for IL is OFF, whether it is between
JMP(04) and JME(05) and the execution condition for JMP(04) is OFF, or
whether it is reset by an OFF execution condition. “RSET,” “IL,” and “JMP” are
used to indicate these three times.
Basic Instructions
Special Instructions
Code
Mnemonic
ON execution
time (
µ
s)
Conditions (Top: min.; bottom: max.)
OFF execution time (
µ
s)
RSET
IL
JMP
---
---
---
---
---
---
---
---
LD
LD NOT
AND
AND NOT
OR
OR NOT
AND LD
OR LD
0.375
Any
---
---
---
---
OUT
OUT NOT
0.563
Without direct outputs or for operands other than
IR 10000 to IR 11515 when direct outputs are
used.
---
---
---
SET
RSET
0.938
Direct outputs
---
---
TIM
1.125
Constant for SV
1.125
1.125
1.125
*
DM for SV
40.8
1.125
1.125
---
CNT
1.125
Constant for SV
1.125
1.125
1.125
*
DM for SV
38.7
1.125
1.125
Code
Mnemonic
ON execution
time (
µ
s)
Conditions (Top: min.; bottom: max.)
OFF execution time (
µ
s)
00
NOP
0.375
Any
---
01
END
28.0
---
02
IL
9.3
8.2
03
ILC
8.5
8.5
04
JMP
13.8
8.9
05
JME
8.3
8.3
06
FAL
42.6
1.125
07
FALS
3.0
1.125
08
STEP
43.7
1.125
09
SNXT
18.8
1.125
10
SFT
Reset
IL
JMP
33.2
With 1-word shift register
32.4
11.5
11.5
58.3
With 10-word shift register
52.0
11.5
11.5
311.4
With 100-word shift register
241.0
11.5
11.5
11
KEEP
0.563
Without direct outputs or for operands other than
IR 10000 to IR 11515 when direct outputs are
used.
---
0.938
Direct outputs using IR 10000 to IR 11515
12
CNTR
Reset
IL
JMP
39.8
Constant for SV
25.0
15.5
15.5
59.7
*
DM for SV
