"BE" LED

The following table describes the display functions of the "BE" LED:

LED

Meaning

Measure

Off

Transition to "OPERATIONAL_Mode" state

Software reset of the NMT state machine (start basic node initialization)

Transition to "BASIC_ETHERNET_Mode" state after a timeout of the SoC, PReq, PRes, and SoA message types.

Red

Illuminated

POWERLINK cycle time exceeded.

Check/adjust the network.

The number of managing nodes (MN) in the POWERLINK network is > 1.

Check/adjust the network.

Configure only 1 managing node.

Invalid Ethernet frame format, such as incorrect Ethernet CRC (redundancy checksum)

Check/adjust the network.

Loss of frame

Check/adjust the network.

Frame collision

Check/adjust the network.

Invalid IP address

Set a valid IP address.