Comparing 16-Bit Binary Block Data - Mitsubishi MELSEC iQ-F FX5 series Programming Manual

Comparing 16-bit binary block data

BKCMP(P)(_U)
These instructions perform a comparison operation between (n) point(s) of 16-bit binary data in the device starting from the
one specified by (s1) and (n) point(s) of 16-bit binary data in the device starting from the one specified by (s2), and store the
operation result in the device specified by (d).
Ladder diagram
(s1) (s2) (d)
( is to be replaced by any of the following: BKCMP=(P)(_U),
BKCMP<>(P)(_U), BKCMP>(P)(_U)< BKCMP<=(P)(_U), BKCMP<(P)(_U),
BKCMP>=(P)(_U).)
Setting data
■Descriptions, ranges, and data types
Operand Description
(s1) BKCMP(P) Comparison data or the device where the
comparison data is stored
BKCMP(P)_U
(s2) BKCMP(P) Device where the comparison source data is
stored
BKCMP(P)_U
(d) Head device storing comparison result
(n) Number of data to be compared
■Applicable devices
Operand Bit
X, Y, M, L, U\G T, ST,
SM, F, B, SB
 
(s1)
 
(s2)
 
(d)
 
(n)
*1 T, ST, C cannot be used.
Processing details
• These instructions perform a comparison operation between (n) point(s) of 16-bit binary data in the device starting from the
one specified by (s1) and (n) point(s) of 16-bit binary data in the device starting from the one specified by (s2), and store the
comparison result in (n) point(s) of data starting from the device specified by (d).
• The relevant devices of (n) point(s) of data starting from the device specified by (d) are turned ON when the comparison
conditions are met and turned OFF when the comparison conditions are not met.
∙∙∙
b15 b0
(s1) 1234 (BIN)
(s1)+1
5678 (BIN)
(s1)+2
5000 (BIN)
(n)
(s1)+(n-2)
7777 (BIN)
(s1)+(n-1)
4321 (BIN)
• Comparison operation is performed in units of 16 bits.
(n)
Word
T, ST, C, D, U\G
C, LC W, SD, SW, R
  
  
*1
  
  
∙∙∙
b15 b0
(s2) 5321 (BIN)
(s2)+1 3399 (BIN)
(s2)+2 5678 (BIN)
>
(s2)+(n-2) 6543 (BIN)
(s2)+(n-1)
1200 (BIN)
Structured text
Not supported
Range Data type
-32768 to +32767 16-bit signed binary
0 to 65535 16-bit unsigned binary

16-bit signed binary

16-bit unsigned binary

Bit
0 to 65535 16-bit unsigned binary
Double word Indirect
specification
Z LC LZ
   
   
   
   
Operation result
(d) OFF
(d)+1
ON
(d)+2
OFF
(n)
(d)+(n-2)
ON
(d)+(n-1)
ON
6.1 Comparison Operation Instructions
Data type (label)
ANY16
ANY16_U
ANY16
ANY16_U
ANY_BOOL
ANY16_U
Constant Others
K, H E $
   
   
   
   
(0)
(1)
(0)
(n)
(1)
(1)
6 BASIC INSTRUCTIONS
6
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