22.11.6.7 Label Settings
The following are possible status values for CF Card/USB Storage
Status.
Listed Files
When the File List Output function "_CF_dir ( )" or "_USB_dir (
)" is executed, the number of file lists that are actually written
in the LS Area is stored in "Listed Files
[s:CF_FILELIST_NUM]/[s:USB_FILELIST_NUM]".
Usage example
_CF_dir ("\DATA\*.*", [w:[#INTERNAL]LS0100], 10,
0)
[w:LS0200] = [s:CF_FILELIST_NUM]
When obtaining a file list of the 10 files and the specified
folder contains only five files, "5" is stored in
[s:CF_FILELIST_NUM].
Number of Read Bytes
When the File Read function "_CF_read ( )" or "_USB_read ( )" is
executed, the number of bytes actually read out is stored in
"Readout Bytes [s:CF_READ_NUM] / [s:USB_READ_NUM].
Usage example
_CF_read ("\DATA", "DATA0001.BIN",
[w:[#INTERNAL]LS0100], 16, 16)
[w:[#INTERNAL]LS0200] = [s:CF_READ_NUM]
When an attempt is made to read 16 bytes but only 12 bytes are
read successfully, "12" is stored in [s:CF_READ_NUM].
CF Card/USB Storage Error Status
The CF Card or USB Storage access error status is stored in
[s:CF_ERR_STAT] or [s:USB_ERR_STAT].
|
Bit Position
|
Error Name
|
Description
|
|
15
|
Reserved
|
Reserved
|
|
14
|
|
13
|
|
12
|
|
11
|
|
10
|
|
9
|
|
8
|
|
7
|
|
6
|
File rename error
|
|
|
5
|
File delete error
|
-
CF Card/USB Storage is removed during
execution
-
Specified file does not exist
-
An attempt was made to delete a file with a
read-only attribute
|
|
4
|
File write error
|
-
CF Card/USB Storage is removed during
execution
-
Exceeded available space on CF Card/USB
Storage
-
An attempt was made to write data to a file
with a read-only attribute
-
An attempt was made to "overwrite" a file that
does not exist
|
|
3
|
File read error
|
|
|
2
|
File list error
|
|
|
1
|
CF Card/USB storage error
|
|
|
0
|
No CF Card/USB Storage
|
|
CF Card/USB storage Error Detail Status
Storage Area
Each Bit will be set when an error occurs. You can check what
factors lead to the error by setting Detail Status. In each
function, Detail Status is stored in LS9132 to LS9137 for Extend
System Area (LS9138 to LS9143 for USB storage). These areas are
read-only.
Error list for each function
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_CF_dir ( )
|
LS9132
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name specified with fixed string)
|
|
0012h
|
File name (path name) error
|
|
0018h
|
LS Area writing range error
|
|
0020h
|
No CF Card
|
|
0021h
|
Invalid CF Card
|
|
0100h
|
Directory open error
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_CF_read ( )
|
LS9133
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name/file name specified with fixed string)
|
|
0011h
|
LS Area reading range error
|
|
0012h
|
File name (path name) error
|
|
0018h
|
LS Area writing range error
|
|
0020h
|
No CF Card
|
|
0021h
|
Invalid CF Card
|
|
0101h
|
File seek error (Offset error)
|
|
0102h
|
Number of readout bytes error
|
|
0110h
|
File creation (open) error
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_CF_write ( )
|
LS9134
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name/file name specified with fixed string)
|
|
0011h
|
LS Area reading range error
|
|
0012h
|
File name (path name) error
|
|
0020h
|
No CF Card
|
|
0021h
|
Invalid CF Card
|
|
0101h
|
File seek error (Offset error)
|
|
0104h
|
Folder creation error
|
|
0108h
|
Write mode error
|
|
0110h
|
File creation (open) error
|
|
0111h
|
File write error (For example, insufficient
space on CF Card)
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_CF_delete ( )
|
LS9135
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name/file name specified with fixed string)
|
|
0011h
|
LS Area reading range error
|
|
0012h
|
File name (path name) error
|
|
0020h
|
No CF Card
|
|
0021h
|
Invalid CF Card
|
|
0112h
|
File delete error (For example, specified file
does not exist. Specified file is read-only.)
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_CF_rename ( )
|
LS9136
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name/file name specified with fixed string)
|
|
0011h
|
LS Area reading range error
|
|
0012h
|
File name (path name) error
|
|
0020h
|
No CF Card
|
|
0021h
|
Invalid CF Card
|
|
0114h
|
File rename error (For example, specified file
does not exist. File name already exists.)
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_CF_read_csv ( )
|
LS9137
|
0001h
|
Parameter error
|
|
0002h
|
CF Card error (No CF Card, Open file error,
File read error)
|
|
0003h
|
Write Error
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_USB_dir ( )
|
LS9138
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name specified with fixed string)
|
|
0012h
|
File name (path name) error
|
|
0018h
|
LS Area writing range error
|
|
0020h
|
No USB storage
|
|
0021h
|
Invalid USB storage
|
|
0100h
|
Directory open error
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_USB_read ( )
|
LS9139
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name/file name specified with fixed string)
|
|
0011h
|
LS Area reading range error
|
|
0012h
|
File name (path name) error
|
|
0018h
|
LS Area writing range error
|
|
0020h
|
No USB storage
|
|
0021h
|
Invalid USB storage
|
|
0101h
|
File seek error (Offset error)
|
|
0102h
|
Number of readout bytes error
|
|
0110h
|
File creation (open) error
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_USB_write ( )
|
LS9140
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name/file name specified with fixed string)
|
|
0011h
|
LS Area reading range error
|
|
0012h
|
File name (path name) error
|
|
0020h
|
No USB storage
|
|
0021h
|
Invalid USB storage
|
|
0101h
|
File seek error (Offset error)
|
|
0104h
|
Folder creation error
|
|
0108h
|
Write mode error
|
|
0110h
|
File creation (open) error
|
|
0111h
|
File write error (For example: insufficient
space on USB storage)
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_USB_delete ( )
|
LS9141
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name/file name specified with fixed string)
|
|
0011h
|
LS Area reading range error
|
|
0012h
|
File name (path name) error
|
|
0020h
|
No USB storage
|
|
0021h
|
Invalid USB storage
|
|
0112h
|
File delete error (For example, specified file
does not exist. Specified file is read-only.)
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_USB_rename ( )
|
LS9142
|
0010h
|
Invalid D-Script data (Error in retrieving
folder name/file name specified with fixed string)
|
|
0011h
|
LS Area reading range error
|
|
0012h
|
File name (path name) error
|
|
0020h
|
No USB storage
|
|
0021h
|
Invalid USB storage
|
|
0114h
|
File rename error (For example, specified file
does not exist. File name already exists.)
|
|
Editor Function Name
|
|
Error Status
|
Cause
|
|
_USB_read_csv ( )
|
LS9143
|
0001h
|
Parameter error
|
|
0002h
|
USB storage error (No USB storage, File open
error, File read error)
|
|
0003h
|
Write Error
|
Data Storage Mode
When data is read/written from/ to device addresses at the
execution of the File Read/File Write function, the storage order
of the written (readout) data can be specified.
Setting the data storage mode in LS9130 can change the storage
order. The mode can be selected from four options: 0, 1, 2 or
3.
-
_CF_write() CF file operation: Write to
file
-
_CF_read() CF file operation: Read file
-
_CF_read_csv() CF file operation: Read CSV
file
-
_USB_write() USB file operation: Write to
file
-
_USB_read() USB file operation: Read file
-
_USB_read_csv() USB file operation: Read CSV
file
-
IO_WRITE([p:PRN],...) Print operation:
Send
-
When writing or reading to device addresses,
instead of using the LS9130 storage mode, you can use the following
functions to interact with the [Text Data Mode] property in the
[System Settings] window's [Device/PLC] page.
-
_CF_dir() CF file operation: Output file
list
-
_USB_dir() USB file operation: Output file
list
For example, when the File Read function is
used to write a string "ABCDEFG" in a device address
[w:[#INTERNAL]LS9130] = 0
_CF_read ("\DATA", "DATA0001.BIN", [w:[#INTERNAL]LS0100], 0, 7)
For example, when the File Read function is
used to write a string "ABCDEFG" in a device address
[w:[#INTERNAL]LS9130] = 1
_CF_read ("\DATA", "DATA0001.BIN", [w:[#INTERNAL]LS0100], 0, 7)
For example, when the File Read function is
used to write a string "ABCDEFG" in a device address
[w:[#INTERNAL]LS9130] = 2
_CF_read ("\DATA", "DATA0001.BIN", [w:[#INTERNAL]LS0100], 0, 7)
For example, when the File Read function is used to write a
string "ABCDEFG" in a device address
[w:[#INTERNAL]LS9130] = 3
_CF_read ("\DATA", "DATA0001.BIN", [w:[#INTERNAL]LS0100], 0, 7)
-
The data storage mode is not the same as the
string data mode in the [System Settings] window's [Device/PLC]
page. The comparison of the data storage mode and the string data
mode is shown below.
|
Data in Device Addresses
|
LH/HL Storage
|
Double-word Byte LH/HL storage order
|
D-Script data storage mode
|
Text Data Mode
|
|
Store from Start Data
|
HL Order
|
HL Order
|
0
|
1
|
|
LH Order
|
1
|
2
|
|
HL Order
|
LH Order
|
2
|
5
|
|
LH Order
|
3
|
4
|
|
Store from Last Data
|
HL Order
|
HL Order
|
—
|
3
|
|
LH Order
|
—
|
7
|
|
HL Order
|
LH Order
|
—
|
8
|
|
LH Order
|
—
|
6
|
-
There is a limit to the frequency that data
can be rewritten to the CF Card. Therefore, be sure to backup all
CF Card data regularly to another storage media. Assuming that 500
KB of DOS format data is overwritten, the limit is 100,000
times.
-
If an error occurs during CF Card/USB
storage processing, the error is written to the CF Card Error/USB
storage error status [s:CF_ERR_STAT]/[s:USB_ERR_STAT]. For more
details, see CF Card/USB Storage Error
Status.
-
The following symbols and characters cannot
be used in folder names or file names. Use of these symbols and
characters in a folder name or file name will generate an
error.
: , = + / " [ ] | < > ? [space]
-
To specify a root folder, specify " " (empty
string) as the folder name.
|
