
R
EVISED
2016-01-19
8
TTL Value
USINT
TTL Value for EtherNet/IP multicast
packets. Default is 1. Range is 1-255
9
Mcast Config
STRUCT of:
IP multicast configuration
Alloc Contro
USINT
Multicast address allocation control
word. Determines how addresses are
allocated
Reserved
USINT
Reserved for future use. Shall be 0
Num Mcast
UINT
Number of IP multicast addresses to
allocate for EtherNet/IP
Mcast Start
Addr
USDINT
Starting multicast address from which
to begin allocation
13 Encapsulation
Inactivity
Timeout
Set UINT
Number of seconds of inactivity
before TCP connection is closed. 0 =
Disable, 1-3600 = timeout in seconds,
Default = 120
1.1.2.3
Ethernet Link Object
The Ethernet Link object class (Class code = 0xF6) and instance attributes are implemented as
defined by CIP Vol 2, 5-4 [2]. There is one instance of this object per switch port where
instance 1 = port 1, instance 2 = port 2, etc. As per the CIP specification, the get all service
code (0x01) will get all attributes, excluding vendor extensions. Service code (0x32) will get all
attributes, including the N-Tron vendor extensions. The following table summarizes the
attributes in the Ethernet Link object.
Id
Name
Set
Format
Description
1
Interface Speed
UDINT (32)
Interface speed currently in use. Speed
in Mbps (e.g., 0, 10, 100, 1000, etc.)
2
Interface Flags
DWORD (32)
Interface status flags Bit map of
interface flags. See section 5-4.3.2.1.
Includes Link status, duplex mode,
auto-negotiation status, etc.
3
Physical Address
ARRAY of 6
USINTs (8)
MAC address of switch port.
4
Interface Counters
STRUCT of:
In Octets
UDINT (32)
Octets received on the interface.
In Ucast Packets
UDINT (32)
Unicast packets received on the interface.
In Nucast Packets
UDINT (32)
Non-unicast packets received on the
interface.
In Discards
UDINT (32)
Inbound packets received on the interface
but discarded
In Errors
UDINT (32)
= 0. Not available.
Inbound packets that contain errors (does
not include In Discards).
In Unknown Protos
UDINT (32)
= 0. Not available.
Inbound packets with unknown protocol
Out Octets
UDINT (32)
Octets sent on the interface
Out Ucast Packets
UDINT (32)
Unicast packets sent on the interface
Out Nucast Packets
UDINT (32)
Non-unicast packets sent on the interface
Out Discards
UDINT (32)
Outbound packets discarded
Out Errors
UDINT (32)
= 0. Not available.
Outbound packets that contain errors
N-Tron® Series 700/7000 Switch CIP™ Manual
-6-