
1 OVERVIEW
1.2 Data Specification Method
29
1
■
Specifying a bit device with nibble specification in the source (s)
When a bit device with nibble specification is specified in the source of an instruction, 0 is stored in the bits, which follow the
bit for which nibble specification is made in the source, in the word device of the destination.
■
Specifying a bit device with nibble specification in the destination (d)
When a nibble specification is made in the destination of an instruction, the number of points by the nibble specification is
applicable in the destination.
The bit devices after the number of points specified by nibble remain unchanged.
Handling 32-bit data with word devices/labels
■
Word device
Two points of word device can handle 32-bit data.
Note, however, that one point of the following devices can handle 32-bit data.
• Long counter (LC)
• Long index register (LZ)
■
Double word type label
One point of double word device can handle 32-bit data.
Ladder example
Processing
• 32-bit data instruction
Ladder example
Processing
• When the source data is a word device
X10
DMOV
K1X0
D0
Source (s)
b0
b15
b16
b31
∙∙∙
∙∙∙
b3
b4
b2 b1
X0
0
0
0
0
0
0
0
0
0
0
0
0
X3 X2 X1
X0
X3 X2 X1
K1X0
D0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
D1
Filled with 0s.
Filled with 0s.
X10
DMOV
D0
K5M10
Destination (d)
M10
M25
∙∙∙
∙∙∙
M17
M18
1
0
1
0
1
1
1
0
0
1
1
1
0
0
1
0
M26
M41
∙∙∙
∙∙∙
M29
M30
1
0
1
1
b0
b15
∙∙∙
b7
b8
∙∙∙
1
1
0
0
0
1
1
0
1
0
0
0
1
0
1
1
D1
b0
b15
∙∙∙
b7
b8
∙∙∙
1
0
1
0
1
1
0
0
1
0
1
0
1
1
1
0
D0
The data remain the same.
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: ......