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vacon • 160 EtherNet/IP
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Instance Attribute “Media Counters”
The attribute is a collection of counters related to the Ethernet physical interface.
Instance Attribute “Interface Type”
The attribute indicates the type of the Ethernet interface, i.e. twisted-pair cable, optical fiber,
device-internal and so on. Value "twisted-pair cable" (2) is always returned.
Instance Attribute “Interface State”
The attribute indicates the current state of the Ethernet interface, i.e. operational, disabled etc.
Table 127. Media counters
Field name Data type Description
Alignment Errors UDINT
Frames received that are not an integral number of
octets in length.
FCS Errors UDINT Frames received that do not pass the FCS check.
Single Collisions UDINT
Successfully transmitted frames which experienced
exactly one collision.
Multiple Collisions UDINT
Successfully transmitted frames which experienced
more than one collision.
SQE Test Errors UDINT
The number of times SQE test error message is
generated.
Deferred Transmis-
sions
UDINT
Frames for which the first transmission attempt is
delayed because the medium is busy.
Late Collisions UDINT
Number of times a collision is detected later than
512 bit-times into the transmission of a packet.
Excessive Collisions UDINT
Frames for which transmission fails due to exces-
sive collisions.
MAC Transmit Errors UDINT
Frames for which transmission fails due to an inter-
nal MAC sub layer transmit error.
Carrier Sense Errors UDINT
Times that the carrier sense condition was lost or
never asserted when attempting to transmit a
frame.
Frame Too Long UDINT
Frames received that exceed the maximum permit-
ted enclosure size.
MAC Receive Errors UDINT
Frames for which reception on an interface fails due
to an internal MAC sub layer receive error.
Table 128. Interface state
Value Interface state
0 Unknown interface state
1
The interface is enabled and is ready to send
and receive data
2 The interface is disabled
3 The interface is testing
4-255 Reserved
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