216
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
8 Program Flow – FNC 00 to FNC 09
8.10 FNC 09 – NEXT / End a FOR/NEXT Loop
Program example
1. Program with three FOR-NEXT loops
The loop [3] is repeated 4 times.
When the data value (current value) of D0Z
(D4 when Z is "4") is "6", the loop [2] is
repeated 6 times.
When X010 is OFF
When K1X000 is "7", the loop [1] is repeated
7 times.
When X010 is ON
The program execution jumps to the pointer P22,
and the loop [1] is skipped.
Number of times of repeating the loops [1],
[2] and [3]
X010 = ON
X010 = OFF
7
×
6
×
4 =168 times
6
×
4 = 24 times
4 times
1]
2]
3]
0 time
24 times
4 times
X010
P 22
[1]
[2]
[3]
FNC 09
NEXT
FNC 08
FOR
K 4
FNC 08
FOR
D 0Z
FNC 00
CJ
P 22
FNC 08
FOR
K1X000
FNC 09
NEXT
FNC 09
NEXT
7
times
6
times
4
times