Eaton OPTE9, Руководство по установке, Страница: 53 / 90

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9. Ethernet/IP
Dual port ethernet option board installation manual
MN032004EN October 2017 www.eaton.com
In the OPTE9 product, if the “IP Address Mode” panel
parameter is “Fixed IP”, the value of the Configuration
Control is 0. If the “IP Address Mode” is “DHCP”, the value
of the Configuration Control is 2.
The OPTE9 does not support BOOTP or DNS.
Instance attribute “Physical Link Object”
This attribute identifies the object which is associated with
the underlying physical communications interface (in the
case of Ethernet, for example, the IEEE 802.3 interface).
The attribute consists of two components; a Path Size,
which reveals the number of UINT values in the path, and
the Path itself.
In the OPTE9, the path points to an instance of the
EtherNet Link Object. The value of the Path Size is 2
(total of four octets) and the value of the Path is 20
h
F6
h
24
h
XX
h
, where XX is the instance number of the EtherNet
Link object.
Instance attribute “Instance Configuration”
This attribute contains the configuration parameters required
for a device to operate as a TCP/IP node. The contents
of the attribute depend on how the device has been
configured to obtain its IP parameters (the “Configuration
Method” field in the Configuration Control attribute). If the
device uses a static IP address (Configuration Method value
is 0), the values in the Interface Configuration are those
statically assigned and stored in the non-volatile memory. If
the device uses DHCP (or BOOTP) (Configuration Method
value is 1 or 2), the Interface Configuration values will
contain the configuration obtained through this channel.
Until the BOOTP/DHCP reply is received, the values are 0.
Changing the Instance Configuration is not allowed when
the I/O connection is open or Configuration Control-attribute
is not set to “statically-assigned”.
The IP address, Network Mask and Gateway address
consists of four bytes. For example, the IP address
192.168.0.10 would be in format: C0
h
, A8
h
, 00
h
, 0A
h
.
Table 98. Instance configuration
Interface configuration STRUCT ofe: Description Semantics of the value
IP address UDINT The device’s IP address Value of 0 indicates no IP address has been configured. Otherwise, the IP address must be set
to a valid Class A, B, or C address and must not be set to the loopback address (127.0.0.1).
Network mask UDINT The Device’s network mask Value of 0 indicates no network mask address has been configured.
Gateway address UDINT Default gateway address Value of 0 indicates no IP address has been configured. Otherwise, the IP address must be set
to a valid Class A, B, or C address and must not be set to the loopback address (127.0.0.1).
Name server UDINT Primary name server Value of 0 indicates no name server address has been configured. Otherwise, the name server
address must be set to a valid Class A, B, or C address.
Name server 2 UDINT Secondary name server Value of 0 indicates no secondary name server address has been configured. Otherwise, the
name server address must be set to a valid Class A, B, or C address.
Domain name STRING Default domain name ASCII characters. Maximum length is 48 characters. Must be padded to an even number
of characters (pad not included in length). A length of 0 indicates that no Domain Name
is configured.
Instance attribute “Host Name”
This attribute contains the device’s host name. The
maximum length is 64 ASCII characters. The name is
padded to an even number of characters. The Attribute Host
Name is used only for information purpose.
Instance attribute “Encapsulation Inactivity Timeout”
The Encapsulation Inactivity Timeout attribute is used to
enable the TCP socket cleanup (closing) when the defined
number of seconds have elapsed with no Encapsulation
activity. The default value is 120 seconds. The TCP keep-alive
traffic does not count as Encapsulation activity.
Table 99.
Value Description
0 Disable
1-3600 Timeout in seconds
Instance attribute “Select ACD”
This attribute is used to enable or disable ACD (Address
Conflict Detection) functionality.
For more information see Chapter 4.5 “ACD (Address
Conflict Detection)”.
Instance attribute “Last Conflict Detected”
This attribute contains information of the last IP address
conflict. The content of this attribute can be resetted by
writing zero to this attribute.
The struct member “ACD Activity” tells the state of ACD
algorithm when the last conflict was detected. Possible
values are defined in the table below.