Mitsubishi Electric QJ81DL96 User Manual page 335

11
FUNCTIONS OF CONFIGURATION TOOL (MODULE SETTINGS)
(1) Scaling
Example) To scale the floating point value stored in device D0 with the following equation
Data name
Operand 1
Value 1
Operand 2
Value 2
Configure when setting a device value read from the programmable controller CPU as
data calculated with a conversion equation. There are two methods to enter data for
scaling.
• Enter the conversion equation directly in the cell.
• Click and specify on the "Scaling" screen.
(D0  10.4) + 0.1
< Example of conversion
equation direct input >
Item
Displays the data name.
If the data name is blank, shows the start device in parenthesis.
Example 1) No. 3, data name is 'Word1'  "Word1"
Example 2) No. 15, no data name, start device is 'D0'  "(D0)"
Select from [Blank], *, /.
Set the value to be modified by Operand 1 as a numerical value up to a maximum of 10
characters including sign/decimal point.
Example settings)
• 9999999999 (10 character numerical value)
• -999999999 (1 character sign, 9 character numerical value)
• 0.00000001 (1 character decimal point, 9 character numerical value)
• -0.0000001 (1 character sign, 1 character decimal point, 8 character numerical value)
Select from [Blank], +, -.
Set the value modified by Operand 2.
This setting is the same as "Value 1" in this chart.
POINT
(1) Scaling cannot be performed if the data type is bit, string, or raw string.
(2) If the 'data name' set with scaling is specified by other settings, those settings
handle the value after the scaling conversion.
(3) For operation processing specified with scaling, all values are calculated as
double precision floating point numbers.
The result is output in the format specified with output format.
(4) The data output when the calculation result is over the maximum value for the
specified output format range or when under the minimum value differs
according to file format.
For details, refer to the following sections.
For the CSV format
For the binary format :  Section 3.7.1 Data logging file
< Example of data input on the "Scaling" screen >
Description
:  Section 3.6.2 (2)(d) Data line
11.5 Data Logging Setting
11.5.6 Data setting
9
10
11
12
13
14
15
16
11
- 90