Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual page 976

FREAD
Instruction
READ DATA FILE
Symbol
Applicable Program Areas
Function block
Area
definitions
Usage OK
Operands
Operand
C Control word
S1 Number of words and First source word
S2 Filename
D First destination word
C: Control Word
15 12 11
C
Data type (-EV1 only)
0: Binary (extension: .IOM, words/field: NA)
1: Non-delimited words (extension: .TXT, words/field: 1)*
2: Non-delimited double-words (extension: .TXT., words/field: 2)*
3: Comma-delimited words (extension: .CSV, words/field: 1)*
4: Comma-delimited double-words (extension: .CSV, words/field: 2)*
5: Tab-delimited words (extension: .TXT, words/field: 1)*
6: Tab-delimited double-words (extension: .,TXT words/field: 2)*
*: Cannot be set for CS-series CS1 CPU Units prior to V1@.
Note 1 Each field will contain 1 word of I/O memory for the word data types and 2 words of I/O memory for the
double-word data types.
2 When reading data with carriage returns, bits 00 to 11 of C must be set to between 8 and D hex.
3 With double-words, the first word of data is stored in the higher memory address, e.g., 12345678 would be
stored with 1234 in D1 and 5678 in D0.
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Mnemonic Variations
FREAD @FREAD
FREAD(700)
C
S1
S2
D
Block program areas Step program areas
OK OK
Description
8 7 4 3 0
File memory specifier
0: Memory Card
1: EM file memory
Function specifier
0: Read data.
1: Read number of words.
Carriage returns
0: No returns
8: Return every 10 fields*
9: Return every 1 field*
A: Return every 2 fields*
B: Return every 4 fields*
C: Return every 5 fields*
D: Return every 16 fields*
Function
code
Reads the specified data or amount of data from the
700 specified data file in file memory to the specified data
area in the CPU Unit.
FREAD
C: Control word
S1: Number of words and First source word
S2: Filename
D: First destination word
Subroutines Interrupt tasks
OK
Data type
UINT
LWORD
UINT
UINT
3. Instructions
Function
SFC action or
transition programs
OK OK
Size
Variable
4
Variable
Variable
939
3