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5-4 Scaling
The setting method of the scaling values is explained below. Refer to 6-1 Scaling
Value Teaching for the method to obtain the scaling values from the teaching
operation.
Settings Scales input values into desired values within a range from –9999 to 9999. X2 –
Y2 and X1 – Y1 must be input (X: input value, Y: corresponding display data).
The X1 value must be different from the X2 value, otherwise the Unit will process
them as an overrange value of B000.
Default Values The following are the factory-set scaling values.
X1: 0
X2: 1000
Y1: 0
Y2: 1000
Input value
Display data
Therefore, if the Unit is operated with the factory-set scaling values with an input
range from 4 to 20 mA, an input of 4 mA will be regarded as 400 and an input of
20 mA will be regarded as 2000. When the input type is “1 to 5 V,” an input of 1 V
will be 1000 and that of 5V will be 5000. When the input type is “–9999 to 9999 V,”
an input of 9,999 V will be 9999 and that of –9999 V will be –9999.
The graph below shows the relationship between the actual input values and the
internal data.
Input
–9.999 V –5 V
(–5000)
(–9999)
(400)
(1000)
(2000)
(5000)
(9999)
Scaling
Section 5-4
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