34
IO Modual
Figure 3-11 relationship between AI value and input analog value
Figure 3-12 AI value read on screen
2. Parameter Setting
“AI input mode (10afH)” register: this register determines the input
mode of analog input circuit. If this register is “0”, then the input mode
is 0 to 20mA. If this register is “1”, then the input mode is 4 to 20mA. If
this register is “2”, then the input mode is 0 to 5V. If this register is “3”,
then the input mode is 1 to 5V.
The parameter setting is shown in gure 3-13.
AI Value
0
4095
20
mA
0
AI Value
4
4095
20
mA
0
AI Value
0
0
AI Value
1
4095
5
V
0
4095
5 V
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