● The file name of the binary format file is "dt010.bin". The file number 10 specified by [D] is
added.
[S] …10 [n] …5
[i]…US
H 0108
H 0109
H 0110
DT108
DT109
DT110
25022602270228022902
H 0111
H 0112
H 0113
DT111
DT112
DT113
H 0114
H 0115
H 0116
H 0117
H 0118
DT114
DT115
DT116
DT117
DT118
[D] …DT110
File dt010.bin (16-bit binary format)
H 0108
H 0109
H 0225
DT108
DT109
DT110
H 0226
H 0227
H 0228
DT111
DT112
DT113
H 0229
H 0115
H 0116
H 0117
H 0118
DT114
DT115
DT116
DT117
DT118
■
Precautions for programming
● Also refer to section "19.9 Common Precautions for SD Memory Card Access Instructions".
● The SD memory card access instruction active flag (SR3A) turns ON after the execution
condition has turned ON until the completion of the execution of the instruction. During this
time other SD memory card access instructions cannot be executed.
● During the execution of the CDTRD instruction, data values read from the SD memory card
are written from the beginning of a specified data device area in order. Therefore, do not
read the data in the range of data device processed by the CDTRD instruction after the start
of the reading process until the completion.
● When the number of data of the stored file is less than the specified number of data to be
read, data is read up to the number of data of the file.
● An error occurs when there is no folder, or no file with a specified file number in the folder.
■
Flag operations
Name Description
SR3A (SD memory card access
instruction execution in progress)
Turns ON when instruction execution starts. Turns OFF when
instruction execution is complete.
SR3B (SD memory card access
instruction execution complete)
Turns OFF when instruction execution starts. Turns ON when
instruction execution is complete.
SR3C (SD memory card access
instruction execution result)
Indicates the execution results when instruction execution is
complete. Normal end = 0, abnormal end = 1
SR7, SR8 (ER)
To be set in case of out-of-range values in indirect access (index
modification).
To be set when an out-of-range value is specified for [n].
To be set when an out-of-range value is specified for [S].
18.2 CDTRD (Data Read from BIN Format File to Operation Memory)
WUME-FP7CPUPGR-12 18-5
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