Io-link master leds – Comtrol IOLM 4-EIP User Manual
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Chapter 2. Hardware Installation
IO-Link Master 4-EIP User Guide: 2000582 Rev. A
IO-Link Master LEDs
2.5. IO-Link Master LEDs
The following table provides LED descriptions.
IO-Link Master LEDs
PWR
A lit green LED indicates that the IO-Link Master is powered.
MS (Module
Status)
This LED provides the following information:
•
Off = No module status
•
Flashing green and red = Self-test
•
Flashing green = Standby – not configured
•
Steady green = Operational
•
Flashing red = Minor recoverable fault
•
Steady red = Major unrecoverable fault
NET
(Network)
This LED provides the following information:
•
Off = No IP address
•
Flashing green and red = Self-test
•
Flashing green = An IP address is configured, but no CIP
connections are established, and an Exclusive Owner connection
has not timed out
•
Steady green = Active EtherNet/IP connection and no EtherNet/
IP connection time-outs
•
Flashing red = One or more EtherNet/IP connection time-outs
•
Steady red = Duplicate IP address on network
Port 1-4
This LED provides the following information about the IO-Link port.
•
Off: SIO mode - signal is low or disconnected
•
Yellow: SIO mode - signal is high
•
Red: Hardware fault
•
Solid Green: An IO-Link device is connected and communicating
•
Blinking Green: Searching for IO-Link devices
Port 1-4
DI
This LED indicates digital input on Pin 2.
•
Off: DI signal is low or disconnected
•
Yellow: DI signal is high
EIP 1
EIP 2
The EIP LEDs provide this information:
•
Green lit LED = link
•
Green blinking LED = Activity