Mitsubishi MELSEC Q Series Programming Manual page 1168

(4) Scan information
Number Name
Low speed
SM510 program
execution flag
Reads module
SM551
service interval
(5) I/O refresh
Number Name
Program to
SM580 program I/O
refresh
*1 This applies to the CPU of function version B or later.
App-160
Meaning
OFF : Completed or not
executed This relay is on while a low-speed execution
ON : Execution under type program is being executed.
way.
When this relay is turned on, the service
OFF : Ignored
interval of the module specified by SD550 is
ON : Read
read to SD551 and SD552.
Meaning
When this relay is turned on, I/O refresh is
performed after execution of the first
program, and then the next program is
OFF : Not refreshed executed. When a sequence program and a
ON : Refreshed SFC program are to be executed, the
sequence program is executed, I/O refresh
is performed, and then the SFC program is
executed.
Explanation
Explanation
Corres-
ponding
Set by
ACPU
(When Set)
M9
S (Every END
New
processing)
U New
Corres-
ponding
Set by
ACPU
(When Set)
M9
U New
Corresponding
CPU
Qn(H)
QnPH
Qn(H)
QnPH
QnPRH
Corresponding
CPU
*1
Q00J/Q00/Q01