Chapter 11 Convenient Functions
11-99
Default saving path
\SDCard\PLC CARD\AH500\Log
Default file name
DATA_LOGGER_yyyymmdd_hhmmss.log
EX: DATA_LOGGER_20181108_161901.log
11.7.2 Related SM Flags and SR Registors
SM450 R
Check here to see if a SD Card is installed in the PLC.
ON: SD card inside
OFF: No SD card
SM452 R
Check here to see if data is being stored on the SD card.
ON: In the operation of storing
OFF: Not in the operation of storing
SM453 R
Check here to see if there is any SD card operational error.
ON: Abnormal
SR453 R
Check here to see the last operational error code of the SD card.
Note: Only available when SM453=ON
SM454 R/W
Set this flag to ON/OFF to start or stop recording. The system will not set this flag to OFF
automatically even if the space for recording is full. You need to set the flag to OFF manually.
SM455 R
Check here to see if the recorded number has reached the set limit.
ON: The quantity of recordings has reached the set number or the SD card is in cycle recording.
SM456 R/W
Used with SR902 to activate the settings in SR902 for the SD card.
Note: Set the flag from OFF to ON and the PLC starts to store the recorded data on the SD card
SM457 R
Check here to see if there is any valid, downloaded, recorded parameters in the data logger.
ON: The valid recorded parameters are downloaded in data logger.
SR900 R
Check here to see the quantity of the recorded data (32-bit value).
Note: It increments the number of the recorded data by 1 for each record.
SR902 R/W
Control codes for recorded data.
16#5AA5: Store data to a default root and specified file name on the SD card.
0: The storing is done.
Others: Invalid numbers
Note: Used with SM456 to activate this setting.
Note: “R” in the column of attribute (Attr.) indicates the item is read only and the status can be read
here.
“W” in the column of attribute (Attr.) indicates you can set, delete or write a value for this item.
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