4 FUNCTIONS
4.6 Scaling Function
33
4
4.6
Scaling Function
Performs scale conversion on digital output values within the range from a scaling upper limit value to a scaling lower limit
value, both of which are set at desired values.
The converted values are stored in 'CH1 Digital operation value' (Un\G402).
Concept of scaling setting
The concepts of each setting item are described below.
• For the scaling upper limit value, set a value corresponding to the upper limit value after the input range conversion.
• For the scaling lower limit value, set a value corresponding to the lower limit value after the input range conversion.
The upper and lower limits of each range are shown below.
Ex.
The scaling value with the following conditions
• Set the input type/range to voltage (0 to 5 V)
• A value of 20000 is set in Scaling upper limit value, and 4000 is set in Scaling lower limit value.
4000 is stored when the voltage input is 0 V and 20000 is stored when the voltage input is 5 V in 'CH1 digital operation value'
(Un\G402).
Input type/range
Lower limit value
Upper limit value
Input value
Digital output value
Input value
Digital output value
Current
4 to 20 mA
4 mA
0
20 mA
32000
0 to 20 mA
0 mA
0
20 mA
32000
-20 to +20 mA
-20 mA
-32000
20 mA
32000
Voltage
0 to 10 V
0 V
0
10 V
32000
0 to 5 V
0 V
0
5 V
32000
1 to 5 V
1 V
0
5 V
32000
-10 to +10 V
-10 V
-32000
10 V
32000
Resistance
temperature
detector
Pt100
Centigrade
-200
-2000
850
8500
Fahrenheit
-328
-3280
1562
15620
Ni100
Centigrade
-60
-600
250
2500
Fahrenheit
-76
-760
482
4820
Thermocouple
K
Centigrade
-270
-2700
1370
13700
Fahrenheit
-454
-4540
2498
24980
J
Centigrade
-210
-2100
1130
11300
Fahrenheit
-346
-3460
2066
20660
T
Centigrade
-270
-2700
400
4000
Fahrenheit
-454
-4540
752
7520
B
Centigrade
0
0
1710
17100
Fahrenheit
+32
+320
3110
31100
R
Centigrade
-50
-500
1710
17100
Fahrenheit
-58
-580
3110
31100
S
Centigrade
-50
-500
1710
17100
Fahrenheit
-58
-580
3110
31100
Summary of Contents for MELSEC iQ-F
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