Mitsubishi MELSEC QCPU User Manual

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MELSEC-Q/QnA
3 CONFIGURATION OF INSTRUCTIONS
(b) Word device bit designation is done by designating ” Word Device Bit No. ” .
(Designation of bit numbers is done in hexadecimal.)
For example, bit 5 (b5) of D0 is designated as D0.5, and bit 10 (b10) of D0 is designated as
D0.A.
However, there can be no bit designation for timers (T), retentive timers (ST), counters (C)
or index register (Z). (Example Z0.0 is not available)
D0.5
SET Y10
Word device bit designation.
(Turned ON or OFF according
to the 1/O status of bit 5 (b5)
of D0.)
X0
SET D0.5
Word device bit designation.
(Bit 5 (b5) of D0 designated as
ON (1).)
3.2.2 Using word (16 bits) data
Word data is 16-bit numeric data used by basic instructions and application instructions.
The following two types of word data can be used with CPU module:
• Decimal constants..........................K-32768 to K32767
• Hexadecimal constants..................H0000 to HFFFF
Word devices and bit devices designated by digit can be used as word data.
For direct access input (DX) and direct access output (DY), word data cannot be designated by
digit output (DY). (For details of direct access input and direct access output, refer to the User’s
Manual (Function Explanation, Program Fundamentals) of the CPU module in use, or the
QnACPU Programming Manual (Fundamentals).).
(1) When using bit devices
(a) Bit devices can deal with word data when digits are designated.
Digit designation of bit devices is done by designating ” Number of digits
Initial number of bit device ” .Digit designation of bit devices can be done in 4-point (4-bit)
units, and designation can be made for K1 to K4.
(For link direct devices, designation is done by ”J Network No.
\ Digit designation
Initial number of bit device
” . When X100 to X10F are designated for Network No.2, it is
done by J2\K4X100.)
For example, if X0 is designated for digit designation, the following points would be
designated:
• K1X0.........The 4 points X0 to X3 are designated
• K2X0.........The 8 points X0 to X7 are designated
• K3X0.........The 12 points X0 to XB are designated
• K4X0.........The 16 points X0 to XF are designated
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Mitsubishi MELSEC QCPU Specifications

General

Brand	Mitsubishi
Model	MELSEC QCPU
Category	Controller
Language	English