Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

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7 APPLICATION INSTRUCTIONS
7.6 Reading/Writing Data Instructions
599
7
Reading data from the specified file
SP.FREAD
This instruction reads device data from the specified file on the SD memory card.
■ Execution condition
Setting data
■
Description, range, data type
*1 Only drive 2 (for the SD memory card) can be set.
*2 When specifying setting data by using a label, define an array to secure enough operation area and specify an element of the array
label.
■
Applicable devices
Ladder ST
ENO:=SP_FREAD(EN,U,s1,s2,d1,d2,d3);
FBD/LD
Instruction Execution condition
SP.FREAD
Operand Description Range Data type Data type (label)
(U) Dummy  Device name ANY16
(s1) Drive specification 2 (fixed)
*1
Word ANY16
(d1) Start device where the control data is stored Refer to the control data. Word ANY16_ARRAY
(Number of elements: 8)
(s2) Start device where the file name is stored  Unicode string ANYSTRING_DOUBLE
(d2) Start device for storing the data that has been read

Word ANY16
*2
(d3) Bit device that turns on upon completion of the processing
(In the case of an error completion, the device specified by
(d3)+1 also turns on.)

Bit ANYBIT_ARRAY
(Number of elements: 2)
EN Execution condition

Bit BOOL
ENO Execution result  Bit BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
(U)
X, Y, M, L,
SM, F, B, SB,
FX, FY J  \  T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD U  \G  , J  \  ,
U3E  \(H)G 
Z LT, LST,
LC LZ K, H E $
(U)
           
(s1)            
(d1)
           
(s2)
           
(d2)
           
(d3)            
RnCPU RnENCPU
RnSFCPU RnSFCPU RnPCPU RnPCPU
(Standard) (Safety) (Redundant) (Process)
(U) (s1) (d1) (s2) (d2) (d3)
EN ENO
d1
d2
d3
U
s1
s2