Class ID 0xF6 Link Object
Three instances of the Link Object are implemented:
-
Instance 1 and 2 relates to the physical Port 1 and 2 of the option.
-
Instance 3 relates to the internal interface of the option, after the build-in switch.
Attrib
ute
Access
Rule
Name
Data Type
Description of Attribute
Parameter
in
frequency
converter
1
Get
Interface Speed
UDINT
Interface speed in Mbps (e.g., 0, 10, 100, 1000, etc.)
12-13
2
Get
Interface Flags
DWORD
Interface status flags
-
3
Get
Physical Address
ARRAY of 6
USINTs
MAC layer address
12-09
4
Get
Interface Counters
STRUCT of
In Octets
UDINT
Octets received on the interface
12-98 [0]
In Ucast Packets
UDINT
Unicast packets received on the interface
12-98[1]
In NUcast Packets
UDINT
Non-unicast packets received on the interface
12-98[2]
In Discards
UDINT
Inbound packets received on the interface but discarded
12-98[3]
In Errors
UDINT
Inbound packets that contain errors (does not include In
Discards)
12-98 [4]
In Unknown Protos UDINT
Inbound packets with unknown protocol
12-98[5]
Out Octets
UDINT
Octets sent on the interface
12-98[6]
Out Ucast Packets
UDINT
Unicast packets sent on the interface
12-98[7]
Out NUcast Packets UDINT
Non-unicast packets sent on the interface
12-98[8]
Out Discards
UDINT
Outbound packets discarded
12-98[9]
Out Errors
UDINT
Outbound packets that contain errors
12-98[10]
5
Get
Media Counters
STRUCT of:
Media-specific counters
Alignment Errors
UDINT
Frames received that are not an integral number of octets in
length
12-99[0]
FCS Errors
UDINT
Frames received that do not pass the FCS check
12-99[1]
Single Collisions
UDINT
Successfully transmitted frames which experienced exactly one
collision
12-99[2]
Multiple Collisions
UDINT
Successfully transmitted frames which experienced more than
one collision
12-99[3]
SQE Test Errors
UDINT
Number of times SQE test error message is generated
12-99[4]
Deferred
Transmissions
UDINT
Frames for which first transmission attempt is delayed because
the medium is busy
12-99[5]
Late Collisions
UDINT
Number of times a collision is detected later than 512 bit times
into the transmission of a packet
12-99[6]
Excessive Collisions UDINT
Frames for which transmission fails due to excessive collisions
12-99[7]
MAC Transmit
Errors
UDINT
Frames for which transmission fails due to an internal MAC sub
layer transmit error
12-99[8]
Carrier Sense Errors UDINT
Times that the carrier sense condition was lost or never asserted
when attempting to transmit a frame
12-99[9]
Frame Too Long
UDINT
Frames received that exceed the maximum permitted frame size 12-99[10]
MAC Receive Errors UDINT
Frames for which reception on an interface fails due to an
internal MAC sub layer receive error
12-99[11]
6
Set
Interface Control
STRUCT of:
Configuration for physical interface
-
Control Bits
WORD
Interface Control Bits
-
Forced Interface
Speed
UINT
Speed at which the interface shall be forced to operate Speed in
Mbps (10, 100, 1000, etc.)
-
7
Get
Interface Label
SHORT_STRING
Human readable identification
-
8
Get
Link List Size
USINT
Number of members in Link List
-
Appendix
MCA 121 EtherNet/IP
50
MG.90.J3.02 - VLT
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is a registered Danfoss trademark
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