Mitsubishi QCPU (Q Mode), Руководство пользователя

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MELSEC-Q
4 SEQUENCE PROGRAM CONFIGURATION AND EXECUTION
CONDITIONS
5) File Use Setting
Sets whether to use the data (file register, initial device value,
comment, local device) set at the “PLC file” tab screen in the “(PLC)
Parameter” dialog box, per program. The data is set for each program.
By default, the option "Use PLC file setting" is selected. If the option
"Not used" is selected, the File Use setting is made as listed below in the
table.
Setting item Processing when the option "Not used" is selected
File register File registers can not be used in the program.
Initial device value
The device initial value is not set when the program file name and
the device initial value is the same.
Comment file used in a
command
Comments can not be used in the program.
Local device
Local devices are not hidden or restored at the time of program
conversion.
6) I/O Refresh Setting
High Performance model QCPU uses the I/O Refresh setting to
update output and input from an I/O module and an intelligent function
module.
The I/O Refresh Setting button is used to update the range of selected
programs. Make the I/O Refresh setting for a scan execution type
program if you want to receive an input (X) or produce an output (Y)
before executing the fixed scan execution type program.
(b) There are following 5 execute types:
1) Initial execution (Initial)
This program type is executed once only at power ON or when STOP-
RUN switching occurs. (See Section 4.2.1)
2) Scan execution (Scan)
This program type is executed once per scan, beginning from the scan
which follows execution of the initial execution program. (See Section 4.2.2)
3) Low speed execution (Low speed)
This program type is executed only when a constant scan setting is
made or when a time is set for execution of low speed execution type
programs.
• When a constant scan setting is made, the program is executed
during the surplus time of a scan execution type program.
• When a time for execution of low speed execution type programs is
set, the program is executed during this set time. (See Section 4.2.3.)
4) Stand-by (Wait)
This program is executed only when its execution is requested. (See
Section 4.2.4.)
5) Fixed scan execution (Fixed scan)
Program that is executed at time intervals specified in the "Fixed scan"
and "In units" columns of the Program Setting sheet of the PLC
Parameter dialog box. (See Section 4.2.5.)
(c) Scantimes of programs being executed (except the fixed scan execution
type program) can be checked on the monitor of the program list. (See
Section 7.11.1.)