EtherNet/IP
vacon • 155
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
9
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
.
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.
Table 120. Instance configuration
Interface
Configuration
STRUCT
of:
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. Oth-
erwise, 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.
Summary of Contents for optea
Page 2: ......
