Manual

12 - 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