Delta AS Series Programming Manual page 159

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12. The flags related to the memory card
 SM36, SM450-SM453, SM456-SR36, SR453, SR902
You use the memory card to back up the data in the PLC. Refer to Chapter 6 for instructions concerning the
memory card.
Device
_2
SM36
SM450
SM451
SM452
SM453
SM456
SR453
SR902
SR36
2 - 1 3 6
Enable saving data to the memory card. When ON, the PLC runs according to the value in the SR36.
Memory card is present.
ON: memory card is present.
OFF: memory card is not present.
Memory card is write-protected.
Data in the memory card is being accessed.
ON: data in the memory card is being accessed.
OFF: data in the memory card is not accessed.
Error during the operation of the memory card.
ON: error occurred.
OFF: no error.
Execution of data logger and the memory card.
ON: execution by the values in SR902.
When an error occurs in the memory card, the error codes are stored here.
A. 16#005D: no memory card installed
B. 16#005E: an error occurs when the memeory card is initialized
C. 16#005F: the path is incorrect or the file does not exist
D. 16#0060: cannot create the default folder
E. 16#0061: the memory space is insufficient
F. 16#0062: the memory card is write protected
G. 16#0063: an error occurs when the data is written into the file
H. 16#0064: the data cannot be read from the memeory card
I. 16#0065: the file is a read-only file
J. 16#0066: when restoring the memory card PLC is in RUN status
K. 16#0067: when restoring the memory card PLC ID is not matched when restoring the memory card
L. 16#0068: when restoring the memory card the password is not matched
M. 16#0069: when restoring the memory card, the file path and the file name contain the CPU module
name, but it is not matched with the actual CPU module
The code for the executions of data logger and the memory card (works with SM456); for example,
H5AA5: write the sampling data from the data logger into the memory card.
Use the following function codes to backup or restore data. Enable SM36 for the function codes to
work.
#1
A. K1122 (backup) , it indicates backing up the PLC programs to the memory card. (PLC ID and
password are included) Execute this backup when the PLC is in the RUN/Stop status.
Default backup file name: SDCard\PLC CARD\AS300\SysDup\user_program.dup
#2
B. K2211 (restore) , it indicates restoring the PLC programs from the memeory card. (PLC ID and
password are included) Execute the restoring when the PLC is in the Stop status.
Default restore file name: SDCard\PLC CARD\AS300\SysDup\user_program.dup
#1
C. K3344 (backup) , it indicates backing up the latched values (D, S, M, C, HC) and the latched
range to the memory card. Execute this backup when the PLC is in the RUN/Stop status.
Default backup file name: SDCard\PLC CARD\AS300\SysDup\retained_data.dup
#2
D. K4433 (restore) , it indicates resoring the latched values (D, S, M, C, HC) and the latched range
from the memory card. Execute the restoring when the PLC is in the Stop status.
Default restore file name: SDCard\PLC CARD\AS300\SysDup\retained_data.dup
Function