Double Word (32 Bits) Data - Mitsubishi Electric MELSEC Q Series Programming Manual

Double word (32 bits) data

Double word data are 32-bit numeric value data used in basic instructions and application instructions.
The following shows the two types of double word data that can be handled in CPU modules.
• Decimal constants: K-2147483648 to K2147483647
• Hexadecimal constants: H00000000 to HFFFFFFFF
For double word data, word devices and digit specification for bit devices can be used.
Note that double word data cannot be specified using digit specification for direct access inputs (DX) and direct access
outputs (DY).
Using bit devices
By specifying digits of bit devices, double word data can be used.
Specify digits of bit data as "[Number of digits][Start number of bit device]".
(For a link direct device, specify as "J[Network No.]\[Number of digits][Start number of bit device]". To specify X100 to X11F of
Network No.2, specify as J2\K8X100.) Digits cannot be specified in the range from K1 to K8 in unit of 4 points (4 bits).
The following are the examples of the target points when digits are specified for X0.
• QCPU (Q mode)/LCPU
Digit specification
K1X0
K2X0
K3X0
K4X0
• For FXCPU, the device numbers of input/output (X, Y) is assigned in octal.
Digit specification
K1X0
K2X0
K3X0
K4X0
X1F X1C X1B X18X17 X14 X13
K6 specification range
(24 points)
K7 specification range
(28 points)
K8 specification range
(32 points)
Number of target points
4 points of X0 to X3
8 points of X0 to X7
12 points of X0 to XB
16 points of X0 to XF
Number of target points
4 points of X0 to X3
8 points of X0 to X7
12 points of X0 to X13
16 points of X0 to X17
X10 XF XCXB X8X7
K2 specification range
(8 points)
K3 specification range
(12 points)
K4 specification range
(16 points)
K5 specification range
(20 points)
Digit specification
K5X0
K6X0
K7X0
K8X0
Digit specification
K5X0
K6X0
K7X0
K8X0
X4 X3 X0
K1
specification
range
(4 points)
Number of target points
20 points of X0 to X13
24 points of X0 to X17
28 points of X0 to X1B
32 points of X0 to X1F
Number of target points
20 points of X0 to X23
24 points of X0 to X27
28 points of X0 to X33
32 points of X0 to X37
4 PROGRAM CONFIGURATION
4.4 Method for Specifying Data
4
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