3.2 AN, AN/ (AND, AND NOT)
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Ladder diagram
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Devices that can be specified (indicated by ●)
Operand
Bit device
Specification of bit of
word device
Index modifier
X Y R L T C P E
S
R
IN
O
T
DT.n LD.n
AN, AN/ bit ● ● ● ● ● ● ● ● ● ● ● ● ● ●
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Outline of operation
Type of
instruction
Operation
AN
Executes an AND operation with the preceding operation result in serial connection by treating the
input contact specified by the AN instruction as a Form A (normally open).
AN/
Executes an AND operation with the preceding operation result in serial connection by treating the
input contact specified by the AN/ instruction as a Form B (normally closed).
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Operation Example
Program operation of "AN" and "AN/" in the ladder diagram
When X100 and R1 turn ON and R2 turns OFF, the result is output to Y110.
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Precautions for programming
● The "AN" and "AN/" instructions can be used consecutively.
3.2 AN, AN/ (AND, AND NOT)
WUME-FP7CPUPGR-12 3-5
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