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PWR
MS
(Module
Status)
NS
(Network
Status)
Port 1-8
D1-4
Dual Ethernet
Ports
13.3
Contacting Technical Support
You may want to access the Help/SUPPORT page when you call Technical Support, as they may request
the information displayed on the SUPPORT page.
Leuze electronic
MD 248i-12-8K/L4-2R2K LEDs
A lit green PWR LED indicates that the IO-Link Master is powered.
The MS LED provides the following information:
•
Off = No errors or there is no PLC connection
•
Flashing green and red = Self-test
•
Flashing green = Standby – not configured
•
Steady green = Operational
•
Flashing red
One or more errors detected when NS is off
Fatal error when NS is also flashing red
•
Steady red = Maintenance required or demanded
The NS LED provides the following information:
•
Off = No PLC connection
•
Flashing green and red = Self-test
•
Flashing green = An IP address is configured, but no connections are established
•
Steady green = PLC connection established
•
Flashing red = Fatal error when MS is also flashing
•
Steady red = Duplicate IP address on network
This LED provides the following information about the IO-Link port.
•
Off: SIO mode - signal is low or disabled
•
Yellow: SIO mode - signal is high
•
Flashing red: Hardware fault - make sure that configured IO-Link settings on the
port do not conflict with the device that is attached:
Automatic Upload and/or Download is enabled and it is not the same
device.
Device Validation Mode is enabled and it is not the correct device.
Data Validation Mode is enabled but there is an error.
•
Solid red - PDI of the attached IO-Link device is invalid.
•
Solid Green: An IO-Link device is connected and communicating
•
Blinking Green: Searching for IO-Link devices
The D1 - D4 LEDs indicates digital input.
Off: DI signal is low or disconnected
On: DI signal is high
The Ethernet LEDs provide the following information:
Green/Solid = Link
Yellow/Solid = Activity
13 Troubleshooting and Technical Support
MD 748i / MD 248i
92
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