Mitsubishi MELSEC Q Series Programming Manual page 808

SP.FREAD
If the number of columns varies in each row, the elements outside of the designated columns are
ignored and "0" is added to the places where elements do not exist.
Example
If the number of columns varies in each row when the data is read:
Main / sub item
Length CR LF
Temperature ,
Data to be read into devices
SP.FREAD U0
Control data
Loaded data
Stores the number of read data
Main/sub item
Data between , and ,
Length
Read
data
No data
Temperature
-21
7-434
, , Measured value , Excess CR LF
-21 , CR LF
K2 D10 D20 D99 M0
Data that was read
File name
Control data
D10 H0100 Execution/completion type
D11 - Not used
D12 K6 Number of request read data
Not used
D13 -
D14 K0
D15 K0
Designation of the number of columns
D16 K2
D17 K0 Data type specification
File name
D20 H4241
"ABCD"
D21 H4443
D22 H0000
D099
K6
D100 K0
D101 K0
D102 K0
D103 K0
D104
K0
D105 K-21
Elements outside the designated
number of columns are ignored.
Number of read result data
Conversion data (0) is stored since "Main/sub item" is nonnumeric data.
Conversion data (0) is stored since " " is nonnumeric data.
Conversion data (0) is stored since "Length" is nonnumeric data.
No data Since no element exists here, conversion data (D) is added.
Conversion data (0) is stored since "Temperature" is nonnumeric data.
Since " -21 " is a numeric value, it is converted to a binary value.