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DeviceNet Configuration
C440/XTOE Electronic Overload Relay, DeviceNet
MN04210002E—March 2011 www.eaton.com
17
Message Router Object, Class 0x02 (C440)
Message Router Instance Services (C440)
Message Router Instance Attributes (C440)
DeviceNet Object, Class 0x03 (C440)
DeviceNet Instance Services (C440)
DeviceNet Instance Attributes (C440)
Service Code
Service Name
Service Data
Description
0x0E
Get_Attribute_Single
N/A
Returns the value of the specified attribute
Attr ID
NV
Access Rule
Name
Data Type
Attribute Description
Semantics
1
Get
Object list
STRUCT of:
A list of supported objects
Structure with an array of object class codes
supported by the device
UINT
Number of supported classes in
the classes array
The number of class codes in the classes array
ARRAY of UINT
List of supported class codes
The class codes supported by the device
2
Get
Number available UINT
Maximum connections supported Count the maximum number of connections
supported
3
Get
Number active
UINT
Number of connections currently
used by system components
Current count of the number of connections allocated
to system communication
Service Code
Service Name
Service Data
Description
0x0E
Get_Attribute_Single
N/A
Returns the value of the specified attribute
0x4B
Allocate
values
Allocate_Master/Slave_Connection_Set
0x4C
Release
value
Release_Group_2_Identifier_Set
Attr ID
NV
Access Rule
Name
Data Type
Attribute Description
Semantics
5
—
Get
Allocation
information
STRUCT of:
—
—
Allocation
choice byte
BYTE
Indicates which connections are
active
Bit 0—Explicit
Bit 1—Poll
Bit 2—Bit strobe
Master’s
MAC ID
USINT
MAC ID of Master
(from allocate)
Range 0—63, 255
Modified via
allocate only
6
—
Get
MAC ID switch
changed
BOOL
The node address switches have
changed since last power-up/reset
0 = No change
1 = Change since last reset or power-up
7
—
Get
Baud rate switch
changed
BOOL
The baud rate switch(es) have
changed since last power-up/reset
0 = No change
1 = Change since last reset or power-up
8
—
Get
MAC ID switch
value
USINT
Actual value of node
address switches
Range 0—63
9
—
Get
Baud rate switch
value
USINT
Actual value of baud
rate switches
Range 0—3
C440 DeviceNet.book Page 17 Friday, March 25, 2011 10:41 AM
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