Справочник Пользователя для Mitsubishi Electronics QCPU

7-321

LIMIT(P),DLIMIT(P)

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.13 Data C

ontrol Instructio

ns

7

.13.1 Upper

 and lower

 limit contr

ols for

 BIN 16-b

it and 

B

IN

 32-bit data (

LIMIT(

P

),DLI

M

IT(P)

)

Data Control Instructions

Upper and lower limit controls for BIN 16-bit and BIN 32-bit 
data (LIMIT(P),DLIMIT(P))

LIMIT(P),DLIMIT(P)

Function

(1) Controls the output value to be stored at the device designated by 

 by checking whether 

the input value (BIN 16 bits) designated by 

 is within the range of upper and lower limit 

values specified by 

 and 

 or not.

Output value is controlled in the way shown below:

 

• When 

  

 

 

 

....................

  

 

 

 

• When 

  

 

 

 

....................

  

 

 

 

• When  

   

   

.........

 

   

(2) Values in the range from  32768 and 32767 can be designated at 

, 

, and 

.

: Lower limit value (minimum output threshold value) (BIN 16/32 bits)

: Upper limit value (maximum output threshold value) (BIN 16/32 bits)

: Input value to be controlled by the upper and lower limit control (BIN 16/32 bits)

: Head number of the devices where the output value controlled by the upper and lower limit control will be 

stored (BIN 16/32 bits)

Settng 

Data

Internal Devices 

R, ZR

J

\

U

\G

Zn

Constants

K, H

Other

Bit

Word

Bit

Word

––

––

––

––

––

LIMIT, DLIMIT

LIMITP, DLIMITP

D

S1

S2

Command

Command

P

S3

D

S1

S2

S3

indicates an instruction symbol of LIMIT/DLIMIT.

S1

S2

S3

D

S1

S2

S3

D

D

S3

S1

S2

S1

Lower limit value

S3

Input value

S1

Lower limit value

D

Output value

S2

Upper limit value

S3

Input value

S2

Upper limit value

D

Output value

S1

Lower limit value

S3

Input value

S2

Upper

S3

Input value

D

Output value

Output value (     )

D

Value designated
by S1

Value designated by S2

Input value(    )

S3

S1

S2

S3