Mitsubishi Electric MELSEC iQ-R Series - Page 45

1 OVERVIEW
1.2 Data Specification Method
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1
Digit specification range
The following table lists the range of 16-bit data for each digit specification.
Ex.
When digit specification is made for X0, the applicable number of points is as follows.
•K1X04 points from X0 to X3
•K2X08 points from X0 to X7
•K3X012 points from X0 to XB
•K4X016 points from X0 to XF
■Specifying a bit device with digit specification in the source (s)
When a bit device with digit specification is specified in the source of an instruction, 0 is stored in the bits, which follow the bit
for which digit specification is made in the source, in the word device of the destination.
■Specifying a bit device with digit specification in the destination (d)
When a digit specification is made in the destination of an instruction, the number of points by the digit specification is
applicable in the destination.
The bit devices after the number of points specified by digits remain unchanged.
Digit
specification
Decimal notation Hexadecimal notation
K1 0 to 15 0H to FH
K2 0 to 255 00H to FFH
K3 0 to 4095 000H to FFFH
K4 Signed 16-bit data: -32768 to 32767
Unsigned 16-bit data: 0 to 65535
0000H to FFFFH
Ladder example Processing
• 16-bit data instruction
Ladder example Processing
• When the source data is a word device
(1) The data remain the same.
· · · ·
XF XC XB X8 X7 X4 X3 X0
K1X0
K2X0
K3X0
K4X0
X10
MOV
K1X0 D0
(s)
b0b15  b3b4 b2 b1
X0
0
0000000 0 0
0
0X3X2X1
X0X3 X2 X1
K1X0
D0
0
X10
MOV D0 K2M100
(d)
M100M115  M107M108
1
1
0
0
1110
K2M100
b0b15  b7b8 
1
1
10110101 0
0
1110
D0
(1)