LSIS XBF-AD08A

Chapter 8 Analog Input Option Board (XBO-AD02A)
8.4 Characteristic of I/O conversion
The input ranges of voltage and current can be set up per channel with user program or I/O
parameters. The output types of digital data are defined as follows.
(1) Unsigned Value
(2) Signed Value
(3) Precise Value
(4) Percentile Value
Digital
output
0
1000
2000
3000
4000
4047
-2000
-1000
0
1000
2000
2047
0
250
500
750
1000
1011
DC 4 ~ 20 mA
DC 0 ~ 20 mA
DC 0 ~ 10 V
4 mA 20 mA12 mA
0 mA
0 V 5 V 10 V
Analog
input
Analog input practical
range
Offset
Gain
20 mA10 mA
-48-2048-12
(1) DC 4 ~ 20mA Range Input
Digital
Output Range
Analog Input Current (mA)
3.81
4
8
12
16
20
20.18
Unsigned Value
(0 ~ 4000)
-48 0 1000 2000 3000 4000 4047
Signed Value
(-2000 ~ 2000)
-2048 -2000 -1000 0 1000 2000 2047
Precise Value
(400 ~ 2000)
381 400 800 1200 1600 2000 2018
Percentile
Value(0 ~ 1000)
-12 0 250 500 750 1000 1011
8 - 5