Mitsubishi Electronics FX3G User Manual
207
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
7 Basic Instruction
7.9 MC, MCR
1
Introdu
ction
2
Ov
ervi
ew
ew
3
Instruction
Li
st
4
D
evices
in Det
ai
l
5
Specifi
ed the
De
vice
&
C
onst
ant
ant
6
Bef
ore
ore
Pr
og
ra
mmi
ng
ng
7
Bas
ic
ic
Instruction
8
FN
C00-FN
C00-FN
C0
9
Program Fl
ow
9
FNC
10-FN
C19
Mov
e & Com
e & Com
pare
10
FNC
20-FNC
29
Arith. & Lo
gi
c
Operati
on
2) When the nesting structure is adopted
When using MC instructions inside MC instruction, increase the nest level "N" in turn in the way "N0
→ N1 → N2
→ N3 → N4 → N5 → N6 → N7".
For returning from the nesting structure, reset the nest levels from the highest one in turn using MCR instruction in
the way "N7
For returning from the nesting structure, reset the nest levels from the highest one in turn using MCR instruction in
the way "N7
→ N6 → N5 → N4 → N3 → N2 → N1 → N0".
For example, if "MCR N5" is programmed without programming "MCR N6" and "MCR N7", the nest level is
returned to 5 immediately.
Available nest levels are from N0 to N7 (eight layers).
returned to 5 immediately.
Available nest levels are from N0 to N7 (eight layers).
[B]
[A]
[C]
[B]
While X000
is OFF
is OFF
[A]
N 1
N 2
X000
MC
N 0
M100
N 0
M100
X001
Y000
X002
MC
N 1
M101
N 1
M101
X003
Y001
X004
MC
N 2
M102
N 2
M102
X005
Y002
MCR
N 2
X006
Y003
MCR
N 1
X007
Y004
MCR
N 0
X010
Y005
N 0
N 1
N 2
N 0
[D]
[C]
While
X002 is
OFF
X002 is
OFF
While
X004
is OFF
X004
is OFF
Circuit program
Level N0
The bus line B is active while X000 is ON.
The bus line B is active while X000 is ON.
Level N1
The bus line C is active while both X000 and
X002 are ON.
The bus line C is active while both X000 and
X002 are ON.
Level N2
The bus line D is active while all of X000,
X002 and X004 are ON.
The bus line D is active while all of X000,
X002 and X004 are ON.
Level N1
The bus line returns to the status of the bus
line C by "MCR N2".
The bus line returns to the status of the bus
line C by "MCR N2".
Level N0
The bus line returns to the status of the bus
line B by "MCR N1".
The bus line returns to the status of the bus
line B by "MCR N1".
Initial status
The bus line returns to the initial status of the
bus line A by "MCR N0". Accordingly, Y005
turns ON or OFF by turning ON or OFF of
X010 regardless of X000, X002 and X004.
The bus line returns to the initial status of the
bus line A by "MCR N0". Accordingly, Y005
turns ON or OFF by turning ON or OFF of
X010 regardless of X000, X002 and X004.