Ethernet Link Object (Class 0xF6)

The Ethernet Link Object (Instance ID 0x01) exposes read-only attributes related to the physical Ethernet interface, such as link speed, status, and MAC address. These attributes provide diagnostic and identification information for EtherNet/IP clients.

For full attribute definitions and behavior, see CIP Specification Volume 2, Chapter 5-4.

Attribute

Name

Type

Value

Description

Access

1

Interface Speed

UDINT

1000

Data rate of the Ethernet interface, in Mbps.

Get

2

Interface Flags

UDINT

 [bitfield]

Bit-level status flags:

Bit 0 – Link Status (0 = Inactive, 1 = Active)

Bit 1 – Duplex (0 = Half, 1 = Full)

Get

3

Physical Address

Array[6] OF USINT

 e.g., 00 16 20 00 2E 42

Device MAC address.

Get