21
ifm
Device Manual IO-Link Master with Modbus interface CabinetLine 8 Ports IP 20 (AL1940)
05 / 2018
Operating and display elements
LED indicators
7.2.3
IoT port
7722
The IoT port (X23) has the 3 LNK, ACT and IoT LEDs. The LEDs indicate the status of the Ethernet
connection and the device identification.
Status LED
Description
LNK
green
on
Ethernet connection established
off
No Ethernet connection
ACT
yellow
flashes
Data is transmitted via the Ethernet interface.
off
No data transmission
IoT
green
flashes
Device identification active
>
7.2.4
Power supply
17856
The interface for voltage supply (X31) has the PWR LED. The LED indicates the status of the voltage
supply.
Status LED
Description
PWR
green
on
Supply voltage Us is applied
off
No supply voltage is applied or the applied supply voltage is too low
>
7.2.5
IO-Link ports (Class A)
22029
Each IO-Link port Class A (X01 ... X08) has 2 LEDs marked as IOL and DI. The LEDs indicate the
status of the IO-Link port.
Status LED
Description
IOL
yellow
on
Interface configured as DI/DO: clamp 4 (C/Q) =ON
off
Interface configured as DI/DO: clamp 4 (C/Q) = OFF
green
on
IO-Link transmission functions properly
flashes 1 Hz
Interface configured as IO-Link, but no IO-Link transmission
red
on
Short circuit or overload in supply voltage
flashes 1 Hz
Transmission error
DI
yellow
on
Digital input: clamp 2 (DI) = ON
off
Digital input : clamp 2 (DI) = OFF
