Mitsubishi MELSEC Q Series Programming Manual page 1201

(17) Data logging
Number
Name
Data logging
setting No.1 OFF : Not ready
SM1940
Data logging ON : Ready
preparation
Data logging
OFF : Pause
SM1941 setting No.1
ON : Start
Data logging start
Data logging
setting No.1 OFF : Not executed
SM1942
Data logging ON : Executed
execution
Data logging
OFF : Not ended
SM1943 setting No.1
ON : Ended
Data logging end
Data logging
setting No.1
SM1944 OFF→ON: Triggered
Data logging
trigger
Data logging
setting No.1 OFF : Not triggered
SM1945
After data logging ON : Triggered
trigger
Data logging
OFF : No error
SM1946 setting No.1
ON : Error
Data logging error
Data logging
setting No.1 Data OFF : Not stored
SM1947
storage in SD ON : Being stored
memory card
Meaning Explanation
This relay turns on when the system is ready
for data logging.
This relay remains on even after data logging
is suspended. However, this relay turns off
when data logging is stopped.
This relay is turned on to start data logging
and is turned off to suspend data logging.
(The related special relays will all turn off.)
This relay is on while data logging is being
executed.
This relay turns on when data logging is
ended.
[Continuous is set for Logging type]
The corresponding bit turns on when data
logging is ended after data have been written
by the number of storable files (Stop is set for
Operation occurring when number of saved
files is exceeded).
[Trigger is set for Logging type]
The corresponding bit turns on when the
trigger condition is met, data are collected by
the number of set times, and then the data
are written to the SD memory card.
This relay also turns on if an error occurs
during data logging (except data logging error
occurred by the execution of online change).
• This relay turns on when the specified
trigger condition is met.
• This relay is turned on to meet the trigger
condition.
This relay turns on after trigger logging is
triggered. This relay remains on even after
data logging is completed. This relay turns off
when trigger logging is suspended or
stopped.
This relay turns on if a data logging error
occurs.
This relay is turned off by the registration of
the setting or a stop command from LCPU
Logging Configuration Tool.
This relay is on while buffer memory data are
being stored to a SD memory card by data
logging.
Corres-
ponding
Set by Corresponding
ACPU
(When Set) CPU
M9
S
(Initial)
U
S
(Status
change)
New LCPU
S
(Status
change)/U
S
(Status
change)
S
(Error)
S
(Status
change)
App-193
8
8
8
8
A
6
7
8