Table of Contents
Advertisement
EtherNet/IP
6.4 Supported CIP objects for EtherNet/IP
Media counter (STRUCT from):
Designation
Alignment Errors
FCS Errors
Single Collisions
Multiple Collisions
SQE Test Errors
Deferred Transmission
Late Collisions
Excessive Collisions
MAC transmission error
Carrier Sense Errors
Frame Too Long
MAC receive error
Interface control attribute
The interface control attribute is a structure that consists of bits of the forced interface speed
and control bits.
When the autonegotiate bit is 0, the bit of the forced interface speed specifies the speed at
which the interface is operating. The speed is given in megabits per second; the interface
speed for an Ethernet with 10 Mbps, for example. Interfaces that do not support the required
speed, show 0x09 (invalid attribute value). When autonegotiation is enabled, the attempt to
set the forced interface speed results in the response 0x0C (object status conflict).
Control bits work as follows:
Bit(s)
Called:
0
Autonegotiate
1
Forced duplex mode
98
Data type
Attribute description
UDINT
Frames received that not only include complete octets
UDINT
Frames received that do not pass the FCS test
UDINT
Successfully transmitted frames with exactly one collision
UDINT
Successfully transmitted frames with more than one collision
UDINT
Number of error messages generated by SQE test
UDINT
Frames whose transmission is delayed due to medium overload
UDINT
Number of cases in which a collision is detected later than after transmis-
sion of 512 bits of the packet
UDINT
Frames whose transmission fails due to a very high number of collisions
UDINT
Frames whose transmission failed due to an internal transmission error in
the MAC sublayer
UDINT
Number of carrier tests that failed or were not executed during transmis-
sion of a frame
UDINT
Frames received that exceed the permissible maximum size
UDINT
Frames whose receipt at an interface failed due to an internal transmission
error in the MAC sublayer
Definition
0 = 802.3 Link autonegotiation is disabled.
1 = Autonegotiation is enabled.
When autonegotiation is disabled, the device uses the settings made by the bits
of the forced duplex mode and the forced interface speed.
When the autonegotiate bit is 0, the bit of the forced duplex mode specifies
whether the interface operates in full duplex or half duplex mode.
0 = Half-duplex
1 = Full duplex
Interfaces that do not support the required duplex mode, show 0x09 (invalid
attribute value). When autonegotiation is enabled, the attempt to set the bits of
the forced duplex mode results in the response 0x0C (object status conflict).
Hardware Installation and Operating Manual, 07/2020, A5E50018670-AA
PN/MF Coupler
Advertisement
Table of Contents
