AI 4/8-U
Kendrion Kuhnke Automation GmbH
158
17 May 2021
State
LED flash code
Explanation
process data differs from that in the module
Defective
Red, on
Module defective
LED "Power"
There is no LED labelled "Power" because a separate power feed is not required.
LEDs "Channel"
The "Channel" LEDs indicate the state of every channel.
State
LED flash code
Explanation
On
Green, on
Channel enabled
Off
Off
Channel disabled
Function
The AI4/8-U module has 8 analogue inputs. If signal lines are single-ended (measured against earth, L-), 8
channels are available. To measure differential signals, you will need 2 channels for every signal, i.e. you
can pick up no more than 4 differential signals. Channels can be combined as follows: 0/1, 2/3, 4/5 and 6/7.
Measured Value
Table "Analogue voltage values"
Measured value
Variable value (@ 16 bits)
±10 V
±5 V
±2,5 V
Bipolar
Unipolar [UINT
*
]
*
Data type conversion required
Volt
Volt
Volt
Decimal
Hexadecimal Decimal
Hexadecimal
-10
-5
-2.5
-32768
16#8000
-9
-4.5
-2.25
-29492
16#8CCC
-8
-4
-2
-26215
16#9999
-7
-3.5
-1.75
-22938
16#A666
-6
-3
-1.5
-19661
16#B333
-5
-2.5
-1.25
-16384
16#C000
-4
-2
-1
-13108
16#CCCC
-3
-1.5
-0.75
-9831
16#D999
-2
-1
-0.5
-6574
16#E666
-1
-0.5
-0.25
-3292
16#F324
0
0
0
0
0
0
0
1
0.5
0.25
3276
16#0CCC
6553
16#1999
2
1
0.5
6553
16#1999
13107
16#3332
3
1.5
0.75
9830
16#2666
19660
16#4CCC
4
2
1
13106
16#3332
26214
16#6665
5
2.5
1.25
16383
16#3FFF
32767
16#7FFF
6
3
1.5
19660
16#4CCC
39320
16#9998
7
3.5
1.75
22936
16#5998
45874
16#B332
8
4
2
26213
16#6665
52427
16#CCCB
9
4.5
2.25
29490
16#7332
58981
16#E665
10
5
2.5
32767
16#7FFF
65534
16#FFFE
