Mitsubishi MELSEC-Q/L User Manual

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3.2 Designating Data 3.2.3 Using double word data (32 bits)
(d) In cases where digit designation is made at the destination (D), the number of points designated are used as the
destination.
Bit devices below the number of points designated as digits do not change.
Fig 3.3 Ladder Example and Processing Conducted
(2) Using word devices
Word devices are designated in 1-point (16 bits) units.
1. When digit designation processing is conducted, a random value can be used for the bit device initial device number.
2. Digit designation cannot be made for the direct access I/O (DX, DY).
3.2.3 Using double word data (32 bits)
Double word data is 32-bit numerical data used by basic instructions and application instructions.
The two types of double word data that can be dealt with by CPU module are as follows:
• Decimal constants.............K-2147483648 to K2147483647
• Hexadecimal constants.....H00000000 to HFFFFFFFF
Word devices and bit devices designated by digit designation can be used as double word data.
For direct access input (DX) and direct access output (DY), designation of double word data is not possible by digit
designation.
Ladder Example Processing
When source (S) data is a numerical value
When source (S) data is a word device
M15 M8
0 0 1 1 0 1 00
M7
M0
Not changed
K2M0
0 0
1 1
0
1
00 H1234 00
1
00
1
00
3
4
3
4
12
X010
MO
V H1234 K2M0
Destination (D)
1
M107
0 0
1 1 1
0
1
M100
Not changed
K2M100
b15 b8
1 0 0 1 1 1 01
b7 b0
D0 10011101
M115 M108
X10
MOV D0 K2M100
Destination (D)
M0
MO
V K100 D0
Designation of 1 point of word
device D0 (16 bits)

Mitsubishi MELSEC-Q/L Specifications

General

Brand	Mitsubishi
Model	MELSEC-Q/L
Category	Controller
Language	English