ELAP MEM440-Bus, Instruction Manual

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MEM-BUS
EtherNet/IP™ ENCODER
Instruction Manual
ENIP_Manual_ENG 17/07/2018
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Attribute 2, Interface Flags
This attribute value is a bitmap, showing status and configuration information about the physical interface.

Bit0

Link Status
It indicates whether or not the communication interface is connected to an active network.

Bit1

Half / Duplex Link
0 indicates the interface is running Half-Duplex, 1 indicates Full-Duplex.

Bit2–4

Negotiation Status
Indicate the status of link auto-negotiation
= 0 , auto-negotiation in progress.
= 1 , auto-negotiation and speed detection failed; using default values for speed and duplex;
= 2 , auto-negotiation failed but detected speed; using default value for duplex.
= 3 , successfully negotiated speed and duplex.
= 4 , auto-negotiation not attempted; forced speed and duplex.

Bit5

Manual Setting Requires Reset
= 0, the interface can automatically adopt changes of attributes of the Ethernet Link Object,
without resetting for activation.

Bit6

Local Hardware Fault
= 0, indicates the interface detects no local hardware faults.

Bit7, …, Bit31

Reserved.
Attribute 3, Physical Address (MAC)
This attribute value contains the interface’s MAC layer address. The MAC address consists a 6 byte Ethernet
address for each individual device and it is unique worldwide. The MAC address consists of two parts, the
first 3 bytes represents the manufacturer-specific ID, while the last 3 bytes represents a consecutive
number. The MAC address for ELAP MEM-BUS encoder is 60-D7-E3-1x-xx-xx.
Attribute 4, Interface Counters
This attribute is a data structure consisting of 11 UDINT counters, concerning the receipt of packets on the
interface.
Attribute 5, Media Counters
This attribute is a data structure consisting of 12 UDINT counters, specific to Ethernet media.
Attribute 6, Interface Control
This attribute is a data structure consisting of Control Bits and Forced Interfaced Speed .
Control Bits:

Bit0

1 indicates the link auto-negotiation is disabled; in this case, the device shall use the
settings indicated by the Forced Duplex Mode and Forced Interface Speed bits.

Bit1

When the auto-negotiate bit is 0 (Bit0 = 0), it indicates whether the interface shall operate
in full or half duplex mode (0

Half Duplex, 1

Full Duplex).

Bit2, …, Bit15

Reserved, shall be set to 0.