4
7
6
5
4
3
2
1
0
X1�7
X1�6
X1�5
X1�4
X1�3
X1�2
X1�1
X1�0
Byte 0 (I-1)
X1�7
X1�6
X1�5
X1�4
X1�3
X1�2
X1�1
X1�0
Byte 1 (I-2)
X1�7
X1�6
X1�5
X1�4
X1�3
X1�2
X1�1
X1�0
Byte 2 (SC)
Equipment identification
Byte 3
For AL2400 the data bits 4���7 of bytes 0, 1 and 2 are transmitted with '0'�
4.1.2 Visual indication
The device
-indicates the current state of an input (yellow LED)�
-indicates a correct operation (green PWR/FLT LED lights)�
-indicates a short circuit of one or several sensor supplies (red PWR/FLT LED
lights)�
4.1.3 Parameter setting
Device-specific parameter lists for IO-Link parameter setting are available at:
www�ifm�com�
4.2 Digital inputs
Depending on the version the device has 8 (AL2400) or 16 (AL2401) digital inputs
(type 2 inputs)�
All inputs refer to the sensor supply potential�
4.3 Sensor supply
Depending on the version the device has 4 (AL2400) or 8 (AL2401) sensor
supplies�
Each sensor supply is limited to 100 mA, the device will not allow higher current�
The total current is max� 400 mA (AL2400) or max� 800 mA (AL2401)�
Every sensor supply has a short circuit monitoring�
The output voltage of the sensor supply is in linear proportion to the input voltage
(positive supply cable of the IO-Link port)� Voltage can vary within the IO-Link
specification (18���30 V)�
