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4-7
Chapter 4. Functions
z
Range types
The setting is valid if the AI block is in the A4, B4, A3 or B3 slot.
For thermocouple and resistance temperature detector, the sensor type and the
temperature range can be selected.
For DC voltage and DC current, the signal type can be selected.
Item (bank)
Display
Description
Initial value
Range type
(Analog input bank)
MENU > AnalogInput
Range type
Input types and ranges (p. 13-12)
in chapter 13
88
Handling Precautions
•
If a range type No. that is not present in the range table is selected, this device
does not perform the input operation but displays 0 in the PV.
z
Linear scaling low and high limits
The setting is valid if the AI block is in the A4, B4, A3 or B3 slot.
Input scaling can be used if the range type is set to DC voltage or DC current.
Item (bank)
Display
Description
Initial value
Linear scaling low limit
Range type
(Analog input bank)
MENU > AnalogInput
Linear scaling low limit
If the range type is DC voltage or DC
current
−32000 to +32000
A maximum of 5 digits, plus 4 digits
after the decimal point, can be set.
0.0000
Linear scaling high limit
(Analog input bank)
MENU > AnalogInput
Linear scaling high limit
1000.0
The following diagram shows the relationship between analog input and analog
input value according to the settings for linear scaling low and high limits.
Analog input value (PV)
Analog input value (PV)
−10 0
100 110
Input (%)
Low limit
Low limit < high limit
Low limit > high limit
High limit
−10 0
100 110
Input (%)
High limit
Low limit
z
Setting the linear input unit character
A character string for the unit of linear input can be set by the
SLP-C7 Smart Loader Package. The setting procedure is as follows:
(1) Open the setup screen of theSLP-C7.
(2) Click
[Unit Strings]
on the toolbar to open the screen as shown below.