Delta AH500 - Page 704

AH500 Programming Manual
6-536
 S
2
: The separation mark
If the value in S
1
is 6, the value in S
2
is written into the memory card as follows.
S
2
Description
High byte
Low byte
16#00
16#00 or
not 16#00
The 6-byte data is written into the file.
Not 16#00 16#00
The 7-byte data is written into the file. The value in the high byte
in S
2
is the value in the seventh byte.
Not 16#00 Not 16#00
The 8-byte data is written into the file. The value in the high byte
in S
2
is the value in the seventh byte, and the value in low byte
in
S
2
is the value in the eighth byte.
 S
3
~S
3
+4: S
3
occupies five devices. Nine characters at most constitute a file name,
including 16#00. If the string does not end with 16#00, the error occurs. If the
ending character is read, the reading of the characters stops, and whether the
file name is legal is checked. The characters which can be used to constitute a
file name are A~Z, a~z, and 0~9. Besides, the file name extension depends on
the file format. The file which is created is in the default folder. If the file name is
“Test1”, the characters are written into the devices as follows.
 The default folder path
Model name
Folder path
AHCPU530-RS2
PLC CARD\AH500\UserProg
AHCPU530-EN
AHCPU530-EN/RM
AHCPU533-EN
2. The related flags:
Flag
Description
SM450
If the memory card is in the CPU module, the flag is ON.
SM451
The write protection switch on the memory card
ON: The memory card is write protected.
OFF: The memory card is not write protected.
SM452
The data is being written from the PLC to the memory card, or the
data is being read from the memory card into the PLC.
SM453
If an error occurs during the operation of the memory card, the
flag is ON. If the flag is ON, users have to reset it to OFF. The
error code is stored in SR453.
3. The related error codes (SR453):
Error code
Description
16#005E
An error occurs when the memory card is initialized.
16#005F
The path is incorrect, or the file does not exist.
16#0060
The default folder can not be created.
16#0061
The memory space is insufficient.
16#0062
The memory card is write protected.
16#0063
An error occurs when the data is written into the file.
16#0064
The data can not be read from the memory card.
16#0065
The file is a read-only file.