Mitsubishi Q02CPU

3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
3.4 Operation Processing
3.4.1 Initial processing
3
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1
Overview
2
Performance Specification
3
Sequence Program Configuration and Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files Handled by CPU Module
6
Functions
7
Communication with Intelligent Function Module
8
Parameters
3.4 Operation Processing
This section explains the operation processing of the CPU module.
3.4.1 Initial processing
Initial processing is a preprocessing for execution of the sequence operation.
It is executed only once in the CPU module statuses indicated in Table3.4.
When the initial processing is completed, the CPU module is placed in the operation status
set by the RUN/STOP switch (RUN/STOP/RESET switch in the case of the Basic model
QCPU).( Section 3.5)Note30Note31Note32Note33
: Executed : Not executed
* 1 : Indicates that the parameter or program was changed in a STOP status and the CPU was placed
in a RUN status without being reset.
(Move the RUN/STOP switch (RUN/STOP/RESET switch in the case of the Basic model QCPU)
from STOP to RUN (RUN LED flickers) and then STOP to RUN.)
Note that the pulsing instruction (PLS, P) may not act normally with the above operation since
the previous information may not be inherited depending on the program changes.
Table3.4 Initial processing list
Initial processing item
CPU module status
When the power is
turned ON.
When reset is
executed.
When STOP to
RUN
*1
The I/O module initialization
Boot from the standard ROM/memory card
Note3.30
PLC parameter check
Multiple CPU system parameter consistency check
Note3.31
Device initialization of the range not latched
Note3.32
(bit device: OFF, word device: 0)
Automatic allocation of the I/O number of installed
modules
Start of the MELSECNET/H network information setting
and network communication
Switch setting of intelligent function module
CC-Link data setting
Ethernet data setting
Setting of device initialization values
Serial communication function setting
Note3.33
Note30
Note31
Note32
Note33
Basic
Note3.30
Redundant
Note3.31
Redundant
Note3.32
Process Redundant
Note3.33
High
Performance
Note3.33
Note3.33
Since the Basic model QCPU cannot use a memory card, a boot from the memory card is not
executable.
Basic
Note3.30
Since the Redundant CPU cannot configure amultiple CPU system, a multiple CPU system
parameter consistency check is not performed.
Note3.31
Redundant
When the start mode is the hot-start mode in the Redundant CPU, the devices outside the latch
range are not initialized.
(Except some devices such as the step relay and index register)
Note3.32
Redundant
The serial communication function is not available for the High Performance model QCPU,
Process CPU and Redundant CPU.
High
Performance
Note3.33
RedundantProcess
Note3.33
Note3.33