
OM-IO-Link Master.018
01/21
IO Link Master - PROFINET
NC-MP-4A4B-12DLA/AL1403
This device is “powered by ifm”. In all electronic interfaces, this device will
appear as AL1403. All firmware and electronic files are provided by ifm.
The port for the voltage supply (XD1) has the LEDs with the designation US
and UA. The LEDs indicate the status of the supply voltage.
Each IO-Link Port Class B has 2 LEDs with the designation IOL and UA/DO.
The LEDs show the status of the IO-Link ports.
7.2.3. Voltage supply
7.2.4. IO-Link Ports (Class B)
Status LED
Description
US
green
on
Supply voltage US is connected
off
either there is no supply voltage or the connected supply voltage is too low
UA
green
on
Supply voltage UA is connected
Off
either there is no supply voltage or the connected supply voltage is too low
Status LED
Description
IOL
yellow
Off
Port configured as DI/DO: pin 4 (C/Q) = OFF
on
Port configured as DI/DO: pin 4 (C/Q) =ON
green
flashing 1 Hz
Port configured asIO-Link: no IO-Link device found
Flashing with 2 Hz
Port configured asIO-Link: Status PREOPERATE
on
Port configured asIO-Link: Status OPERATE
red
Flashing with 2 Hz
Port configuration error or short circuit / overload on US
on
Transmission error
UA/DO
yellow
Off
Digital output: Pin 2 (UA) = OFF
on
Digital output: Pin 2 (UA) = ON
green
Off
IO-Link type A supply: Pin 2 (UA) = OFF
on
IO-Link type B supply: Pin 2 (UA) = ON (not switchable)
red
on
Error: Overcurrent or undervoltage
Each IO-Link Port Class A has 2 LEDs labelled IOL and DI. The LEDs indicate the status of the IO-Link port.
7.2.5. IO-Link Ports (Class A)
Status LED
Description
IOL
yellow
Off
Port configured as DI/DO: pin 4 (C/Q) = OFF
on
Port configured as DI/DO: pin 4 (C/Q) =ON
green
flashing 1 Hz
Port configured asIO-Link: no IO-Link device found
Flashing with 2 Hz
Port configured asIO-Link: Status PREOPERATE
on
Port configured asIO-Link: Status OPERATE
red
Flashing with 2 Hz
Port configuration error or short circuit / overload on US
on
Transmission Error
DI
yellow
Off
digital input: pin 2 = OFF
on
digital input: pin 2 = ON