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3. SPECIFICATIONS MELSEC-A
3-7
2
The following graph shows the I/O characteristic when the offset and gain values of the
AJ65BT-64DAI are changed:
20
(mA)
15
10
5
0
0
4095
4000
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
Example
Figure 3.4 I/O conversion characteristics of AJ65BT-64DAI
The analog output voltage for the characteristic graphs
1
to
3
becomes as below, when the digital
input value is at 2000 and 1000:
Number Digital input value Analog output voltage
2000 15mA
1
1000 12.5mA
2000 12mA
2
1000 8mA
2000 11mA
3
1000 8.5mA
The I/O conversion characteristics are shown in
the graph on the right when the offset value and
the gain value are set as in the following table:
Number Offset value Gain value
1
10mA 20mA
2
4mA 20mA
3
6mA 16mA