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3G

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3U

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3UC

 Series Programmable Controllers

Programming Manual - Basic & Applied Instruction Edition

28 Data Comparison – FNC220 to FNC249

FN

C

160
-F

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C

16

9

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C

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FN

C

170-
FN

C

179

E

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C

180

A

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In

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ions

FN

C

181-
FN

C

18

9

O

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190-
FN

C

199

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lock D

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O

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ation

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C2

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20

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210-
FN

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21

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FN

C

220-
FN

C

249

Da

ta

 

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ison

FN

C

25

0-F

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269

D

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FN

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270-
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274

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FNC232 to FNC237 are data comparison instructions connected to other contacts in series.
The contents of 

 are compared with the contents of 

 in binary format, and a contact becomes conductive

(ON) or non-conductive (OFF) depending on the comparison result.

When the most significant bit is "1" in the data stored in 

 or 

, it is regarded as a negative value in

comparison.
• In the 16-bit operation: bit 15
• In the 32-bit operation: bit 31

Make sure to execute the 32-bit operation (such as "ANDD=", "ANDD>" and "ANDD<") when comparing 32-bit

counters (C200 to C255).

If a 32-bit counter is specified in the 16-bit operation (such as "AND=", "AND>" and "AND<"), a program error or

operation error will occur.

When programming in GX Developer, symbols "

≤" and "≥" cannot be input.

Separate "

≤" into "<" and "=", and separate "≥" into ">" and "=".

The input procedure is described below:

a) Display the circuit program edit window, and put the cursor in a position where a data comparison instruction

is to be used.

b) Input "Instruction" 

→ "space" → "value or device" → "space" → "value or device".

For an input example, refer to "Instruction input window in GX Developer" shown below.

c) Click the [OK] button.
d) Input other contacts and coil drive units consecutively.

232

AND=

ANDD=

=

 

≠

 

233

AND>

ANDD>

>

 

<=

 

234

AND<

ANDD<

<

 

>=

 

236

AND<>

ANDD<>

≠

 

=

 

237

AND<=

ANDD<=

<=

 <

 

238

AND>=

ANDD>=

>=

 >

 

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

  

S

1

  

S

2

<Input example for 16-bit operation>

<Input example for 32-bit operation>

C10

FNC232

AND=

K200

Y10

D0

FNC236

AND<>

K-10

X000

SET

Y11

D10

FNC233

ANDD>

K678493

M50

M3

X001

X002

S

1 ‚

S

2 ‚

When X000 is ON and the current value of the counter
C10 is "200" Y010 is driven.

When X001 is OFF and the contents of the data register
D0 are not "-10", Y011 is set.

When X002 is ON, when the contents of the data registers
D11 and D10 are less than "K678,493", or when M3 turns
ON, M50 is driven.