Mitsubishi Electronics garage door opener FX3UC Manual

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964 Pages English

Mitsubishi Electronics garage door opener FX3UC
Pages
OF
964
206
FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
7 Basic Instruction
7.9 MC, MCR
Caution
1. A circuit error (Error code: 6611) occurs when an instruction connected the bus line (such as LD
and LDI) is not present just after the MC instruction.
2. Cautions on writing during RUN
The PLC cannot detect errors if an instruction is added between the MC instruction and the N instruction by write
during RUN.
The PLC can detect errors after it is set to the STOP mode once and then to the RUN mode again.
Program examples
1) When the nesting structure is not adopted
Circuit program List program
X000
MC N 0 M100
N 0 M100
X001
Y000
X002
Y001
MCR N 0
X003
MC N 0 M150
N 0 M150
X004
Y002
X005
Y003
MCR N 0
0000 LD X000
0001
MC
N000
SP M100
0004 LD X001
0005 OUT Y000
0006 LD X002
0007 OUT Y001
0008
MCR
N000
←
Two-step instruction
Three-step instruction
←
When not adopting the nesting structure,
use "N0" again. There is no limitation in
the number of "N0".
Only in the nesting structure, increase
the nest level "N" in the way "N0
→
N1 ... N6
→
N7" as shown in the
example 2 on the next page.
←
Return to the bus line ("N0" shows the
nest level.)
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