406
8 APPLICATION INSTRUCTION
8.5 Data Table Operation Instruction
8.5
Data Table Operation Instruction
Reading the oldest data from the data table
SFRD(P)
These instructions read data for first-in first-out control.
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
Ladder diagram
Structured text
ENO:=SFRD(EN,s,n,d);
ENO:=SFRDP(EN,s,n,d);
FBD/LD
Operand
Description
Range
Data type
Data type (label)
(s)
Start number of the word device storing the data
(The start is a pointer. The data is stored starting from (s)+1.)
16-bit signed binary
ANY16
(d)
Word device number storing data taken out first
16-bit signed binary
ANY16
(n)
Number of stored points plus "1". "+1" is required for the pointer.
2 to 32768
16-bit unsigned binary
ANY16_U
EN
Execution condition
Bit
BOOL
ENO
Execution result
Bit
BOOL
Operand
Bit
Word
Double word Indirect
specification
Constant
Others
X, Y, M, L, SM,
F, B, SB, S
T, ST, C, D, W,
SD, SW, R
U
\G
Z
LC
LZ
K, H
E
$
(s)
(d)
(n)
(s)
(d)
(n)
EN
ENO
s
d
n
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 17: ...15 CONTENTS ...
Page 24: ...22 MEMO ...
Page 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Page 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
Page 1107: ...I 1105 MEMO ...
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