Yaskawa MotionWorks IEC Toolboxes User Manual
Page 225
File_RW Toolbox: Function Blocks
MotionWorks IEC61131-3 Toolboxes: 2013-09-13
212
STRING#'flash/user/data/mydata.csv'
V
Separators
Optional. If unconnected, the default
separator is a comma (BYTE#44) to detect
each value column by column. If a different
or multiple characters must be treated as a
value separator, populate the SeparatorList
with up to four byte values equating to the
ASCII value of the separators.
Comma
(BYTE#44)
V
HeaderRows
UINT
Optional. If connected, the value indicates
the number of rows this function block must
ignore before starting to look for actual
data.
UINT#0
V
VerifyVersion
BOOL
Optional. If TRUE, this function block will
expect the first line of the file to contain a
version code for identifying the data format
of the file, i.e columns, datatypes, etc.. This
allows for future changes to the
MyDataStruct while retaining the ability to
parse older files created before a change
was made to the structure of the file.
FALSE
V
BufferSize
UDINT
Specifies the number of bytes in the file to
process at one time. If unconnected, the
default is 2048 bytes. BufferSize can be
adjusted up or down if necessary to
accommodate various file sizes and will
depend upon the CYCLIC task in which the
Read_CSV_File function block is executed.
UDINT#2048
VAR_OUTPUT
E
Done
BOOL
Set high when the commanded action has been completed
successfully. If another block takes control before the action is
completed, the Done output will not be set. This output is
reset when execute goes low.
B
Busy
BOOL
Set high upon the rising edge of the 'Execute' or 'Enable'
input, and reset if Done, CommandAborted, or Error is true.
B
Error
BOOL
Set high if error has occurred during the execution of the
function block. This output is cleared when 'Execute' or
'Enable' goes low.
B
ErrorID
UINT
If Error is true, this output provides the Error ID. This output
is reset when 'Execute' or 'Enable' goes low.
V
ErrorRow
INT
If Error is true and pertains to a problem with the source data,
this value will indicate the location of processing when the
error occurred.
E
ErrorCol
INT
If Error is true and pertains to a problem with the source data,
this value will indicate the location of processing when the
error occurred.