Mitsubishi Electric MELSEC FX3U Programming Manual page 254

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
Program example
1. Program with three FOR-NEXT loops
X010
P 22
252
FNC 08
K 4
FOR
FNC 08
D 0Z
FOR
FNC 00
P 22
CJ
FNC 08
K1X000
FOR
[1]
FNC 09
7
NEXT
times
FNC 09
6
NEXT
times
FNC 09
4
NEXT
times
8.10 FNC 09 – NEXT / End a FOR/NEXT Loop
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
[2] [3]
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 = OFF
7 × 6 × 4 =168 times
[1]
6 × 4 = 24 times
[2]
[3]
8 Program Flow – FNC 00 to FNC 09
X010 = ON
0 time
24 times
4 times 4 times