
6 BASIC INSTRUCTIONS
6.1 Comparison Operation Instructions
157
6
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).
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
*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.
• Comparison operation is performed in units of 16 bits.
Ladder diagram
Structured text
(
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).)
Not supported
Operand
Description
Range
Data type
Data type (label)
(s1)
BKCMP
(P)
Comparison data or the device where the
comparison data is stored
-32768 to +32767
16-bit signed binary
ANY16
BKCMP
(P)_U
0 to 65535
16-bit unsigned binary
ANY16_U
(s2)
BKCMP
(P)
Device where the comparison source data is
stored
16-bit signed binary
ANY16
BKCMP
(P)_U
16-bit unsigned binary
ANY16_U
(d)
Head device storing comparison result
Bit
ANY_BOOL
(n)
Number of data to be compared
0 to 65535
16-bit unsigned binary
ANY16_U
Operand
Bit
Word
Double word
Indirect
specification
Constant
Others
X, Y, M, L,
SM, F, B, SB
U
\G
T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U
\G
Z
LC
LZ
K, H
E
$
(s1)
(s2)
(d)
(n)
(s1)
(s2)
(d)
(n)
∙∙∙
>
OFF
ON
OFF
ON
1234
(BIN)
5678
(BIN)
5000
(BIN)
7777
(BIN)
4321
(BIN)
(n)
(n)
(n)
5321
(BIN)
3399
(BIN)
5678
(BIN)
6543
(BIN)
1200
(BIN)
(0)
(1)
(0)
(1)
ON
(1)
(s1)
(s1)+1
(s1)+(n-2)
(s1)+(n-1)
(s1)+2
∙∙∙
(s2)
(s2)+1
(s2)+(n-2)
(s2)+(n-1)
(s2)+2
∙∙∙
(d)
(d)+1
(d)+(n-2)
(d)+(n-1)
(d)+2
b15
b0
∙∙∙
b15
b0
∙∙∙
Operation result
Summary of Contents for MELSEC iQ-F FX5 series
Page 1: ...MELSEC iQ F FX5 Series Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 21: ...19 PART 1 PART 1 OVERVIEW Part 1 consists of the following chapter 1 OVERVIEW ...
Page 98: ...96 4 STANDARD FUNCTIONS FUNCTION BLOCKS 4 2 Standard Function Blocks MEMO ...
Page 840: ...838 23 TIME DATA FUNCTIONS 23 4 Division MEMO ...
Page 887: ......