FX-TRN-BEG-E
B: Let’s Study the Basics 2
B-16
2) Contact instruction and OUT instruction
As you studied in ’A: Let’s Learn the FX Series PLC!’, the input/output equipment is
individually connected to the PLC.
The operation of individual control equipment is determined by the internal wiring within the
PLC. This internal wiring work is called programming.
In this software, connection (programming) can be easily performed using instruction
symbols.
Contact symbols
OUT instruction symbol
Example of program (See Chapter 1 in the guidance.)
Reference: Instruction word
Inside the PLC, contact symbols and Out instruction symbols are handled in "instruction words".
NO
contact
Is normally open (OFF), and is closed (turned ON) when a signal is
received from the input equipment.
NC
contact
Is normally closed (ON), and is opened (turned OFF) when a signal
is received from the input equipment.
Is driven (turned ON) when signals for all the contacts connected to the
OUT instructions are received (turned ON).
X020
Y000
Green lamp
X020
Y001
Yellow lamp
X021
Y002
Red lamp
X024
X022
Bus: The left vertical line is used as the base for in writing a program.
LD
OUT
AND
OR
OR
AND
Содержание MELSEC-F FX-TRN-BEG-E
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Страница 2: ...FX TRN BEG E ...
Страница 3: ...i FX TRN BEG E USER S MANUAL Manual number JY997D02901 Manual revision C Date April 2003 FX TRN BEG E ...
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Страница 8: ...FX TRN BEG E INTRODUCTION A 2 MEMO ...
Страница 10: ...FX TRN BEG E Introduction 1 A 4 MEMO ...
Страница 28: ...FX TRN BEG E Outline of the Lesson Plan 2 A 22 MEMO ...
Страница 40: ...FX TRN BEG E A Let s Learn the FX Series PLC 1 B 12 MEMO ...
Страница 52: ...FX TRN BEG E B Let s Study the Basics 2 B 24 MEMO ...
Страница 76: ...FX TRN BEG E D Beginner Challenge 4 B 48 MEMO ...
Страница 90: ...FX TRN BEG E E Intermediate Challenge 5 B 62 MEMO ...
Страница 106: ...FX TRN BEG E F Advanced Challenge 6 B 78 MEMO ...
Страница 110: ...FX TRN BEG E Outline 1 C 4 MEMO ...
Страница 162: ...FX TRN BEG E D 32 MEMO ...
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