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MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
GET
Instruction
GET
• Reads one record from a random file to the random file buffer.
GET [#] <file number> [, <record number>]
file number
• • • •
Specify the file number opened by the OPEN
instruction.
Syntax
record number
• • • •
Specify which record of the random file to be read.
GET #1, 5
• • • •
Reads from the fifth record of file number 1 to the
random file buffer.
Examples
Random file data
1
2
3
4
5
6
7
Random
file buffer
Record No.
Description
• The GET instruction reads one record of data from the random file to the random file
buffer.
• <file number> is the number specified when the random file to read the file from was
opened by the OPEN instruction.
• <record number> indicates which order of the record to read from the random file.
• If <record number> is omitted, the next record number of the record, which was specified
by the GET or PUT instruction executed immediately before, is assigned.
If <record number> of the GET instruction executed immediately after the OPEN
instruction is omitted, “1” is assigned to the record number and executed.
REMARK
See the OPEN, FIELD, PUT and CLOSE instructions, and Chapter 6.
