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3.2 Function List
3.2.6 Scaling Function
3
SPECIFICATIONS
(5) How to calculate a scaling value is explained below.
(a) When using the factory default setting for the input range
1) Input range: 0 to10V, 0 to 5V, 1 to 5V, 0 to 20mA, 4 to 20mA, 1 to 5V
(Extended mode), or 4 to 20mA (Extended mode)
2) Input range: -10 to 10V
D
X : Digital output value
D
MAX : The maximum digital output value in the input range being used
D
MIN : The minimum digital output value in the input range being used
S
H : Scaling upper limit value
S
L : Scaling lower limit value
Example) On the Q68AD-G, using the scaling function in High resolution mode
and in the input range of -10 to 10V
If the setting is
Scaling upper limit value, S
H: 14000
Scaling lower limit value, S
L : 2000
and the digital output value D
X is 7500,
Scaling value =
D
X × (SH-SL)
D
MAX
+ SL
Scaling value =
D
X × (SH-SL)
D
MAX - DMIN
+
S
H+SL
2
Scaling value =
= 10812.5....
= 10812
7500×(14000-2000)
16000-(-16000)
+
(14000+2000)
2
It omits digits below the decimal point.
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