Section 5 Functions and Operations
5-6
Functions and
Operations
■ Broken-line approximation
This function is used to correct non-linearity in the input. Twenty
broken-line approximation operation points are available for input 1.
To use broken-line approximation, set "Broken line approximation
enable" to "ON" (the initial setting is OFF).
Broken-line approximation includes the settings "Broken-line approxi-
mation 1 Inputs 1 to 20" and "Broken-line approximation 1 Outputs 1 to
20". Normalized data is used to set the values such that the lower-limit
of the input setting range for input 1 is 0.000 and the upper-limit is
1.000.
●
Relation to input
types
• Normalized data is used to set the values for broken-line approxi-
mation such that the lower-limit of the input setting range for input 1
is 0.0000 and the upper-limit is 1.000. For example, if the input type
of input 1 is J(2) -20.0 to 400.0°C and the broken-line approximation
is to be applied to one point, 190.0°C, the values are set as follows:
Broken-line approximation 1 Input 1 = "0.000"
Broken-line approximation 1 Output 1 = ""0.000"
Broken-line approximation 1 Input 2 = "0.500"
Broken-line approximation 1 Output 2 = "0.750"
Broken-line approximation 1 Input 3 = "1.000"
Broken-line approximation 1 Output 3 = "1.000"
Setting data Setting range Units
Default
value
Broken-line
approximation 1: enable
OFF: Disabled,
ON: Enabled
− OFF
Broken-line
approximation 1: Input 1
to Broken-line
approximation 1: Input 20
-1.999 to 9.999
− 0.000
Broken-line
approximation1: Output 1
to Broken-line
approximation 1: Output 20
-1.999 to 9.999
− 0.000
Broken-line
approximation 1: enabled
fnc.1
on
l.2
Broken-line
approximation 1 Input 1
fi01.1
0.000
l.tec
Broken-line
approximation 1 Output 1
fo01.1
0.000
l.tec
Operation result
Display value
P1
Input
1.000
(400.0°C)
0.500
(190.0°C)
0.000
(-20.0°C)
-20.0°C←0.000
295.0°C←0.750
400.0°C←1.000
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