9
DEVICE EXPLANATION
9.13 Convenient Usage of Devices
9.13.1 Global devices and local devices
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- 98
9
Device Explanation
10
CPU Module Processing
Time
11
Procedure for Writing
Program to CPU Module
AppendicesIndex
9.13 Convenient Usage of Devices
When executing multiple programs in the CPU module, local devices among the internal
user devices can be designated to execute each of the programs in an independent
manner.
Note9.24
Note24
9.13.1 Global devices and local devicesNote25
A number of programs can be stored and executed in the CPU module.
CPU module devices are classified into "global devices" shared by all the programs being
executed and "local devices" used independently by each of the programs.
(1) Global devices
Global devices can be shared by all the programs being executed in the CPU module.
Global device data are stored in the CPU module device memory, and can be used by
all programs.
Note24
Note25
Diagram 9.90 Using the global device
Basic
Note9.24
Since the Basic model QCPU cannot execute multiple programs, it does not support the function
that makes each program independent by local device designation.
Basic
Note9.24
Basic
Note9.25
Since the Basic model QCPU cannot execute multiple programs, it is irrelevant to the difference
between local devices and common devices. When the Basic model QCPU is used, it is not
necessary to be conscious of the description in this section.
Basic
Note9.25
Y12
M0
Program A
Y11
M0
Program B
M0 ON/OFF data
Device memory
Internal relay
ON/OFF
M0
M0 ON/OFF data
Global devices are shared by all programs being executed.
CPU module