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3. SPECIFICATIONS MELSEC-A
3-6
(2) When AJ65BT-64DAI is used:
20
(mA)
15
10
5
0
0 4000
4095
Offset value
Gain value
A
n
a
l
o
g
o
u
t
p
u
t
c
u
r
r
e
n
t
Digital input value
Analog output
practical range
Figure 3.3 I/O conversion characteristics of AJ65BT-64DAI
1
How to calculate the analog value
The resolution of AJ65BT-64DAI can be set arbitrarily by modifying the settings of the offset
value and gain value.
How to calculate the analog value resolution and the analog output value for a given digital
input value when the settings of the offset value and gain value are changed is shown.
(Analog output) = (Analog resolution) × (Digital input value) + (Offset value)
(Analog resolution) =
4000
(Gain value) - (Offset value)