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OVERVIEW
1.3 Devices and Instructions Convenient for Programming
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1.3 Devices and Instructions Convenient for Programming
The CPU module has devices and instructions convenient for program creation.
The main devices and instructions are outlined below.
(1) Flexible device designation
The Q series CPU modules allow devices to be specified flexibly.
(a) Word device bits are handled as contacts/coils
By specifying the bit of the word device, each bit of the word device can be
handled as a contact/coil.
(b) Easy direct processing in 1-point units
Using the direct access input (DX ) and direct access output (DY ), direct
processing can be easily performed in 1-point units in a program. (
Figure 1.20 Designation of word device bit
Figure 1.21 Direct processing in 1-point units
D0.5
SET
Y10
X0
SET
D0.5
Word device bit designation (Turns ON
(1) Bit 5 (b5) of D0.)
Word device bit designation (Turns ON/OFF
depending on 1/0 of Bit 5 (b5) in D0.)
M0
DX10
DY100
Direct access input
Output to output
module at
instruction
execution
Read from input
module at
instruction
execution