Mitsubishi Electric MELSEC-Q/L Programming Manual page 794

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■When reading binary data

• If the extension of the target file is omitted, ".BIN" is used as an extension.

• When the designated file does not exist, an error occurs.

• If the position specified is greater than the existing file size:

• The High Performance model QCPU of which the first five digits of the serial number are "01111" or lower results in an error.

• The High Performance model QCPU/Process CPU/Redundant CPU/Universal model QCPU/LCPU of which the first five digits of the serial number are '01112'

or higher will perform reading at point 0 and will be completed normally.

The following shows how the data is read in binary data reading operation.

Control data

■When reading data after CSV format conversion

• The elements in CSV format file (cells for EXCEL) are read by each row. The numerical value and character strings are

converted into binary data and stored in the device.

• If the extension is omitted, ".CSV" is used as an extension.

• When the designated file does not exist, an error occurs.

• The data designated by the number of request read data ((D0)+2) are read from the beginning of the file. When the last

data of the file is reached before the specified number of data are read:

• The High Performance model QCPU of which the first five digits of the serial number are "01111" or lower results in an error.

• The High Performance model QCPU/Process CPU/Redundant CPU/Universal model QCPU/LCPU whose the first five digits of the serial number are '01112'

or higher reads the data up to the point where the reading is possible.

7 APPLICATION INSTRUCTIONS

7.19 Other Instructions

Execution/completion type

No. of request read data

Location to start reading in the file

No. of columns designation

Data type specification

File data (in byte units)