DeviceNet Configuration
C440/XTOE Electronic Overload Relay, DeviceNet MN04210002E—March 2011 www.eaton.com 21
Connection Object Instance #1 Attributes (Explicit Messaging) (C440)
Attr ID NV Access Rule Name Data Type Attribute Description
1 — Get State USINT State of the object
Default = 0x03
2 — Get Instance_Type USINT Indicates either I/O or messaging connection
Default = 0x00
3 — Get TransportClass_Trigger BYTE Defines behavior of the connection
Default = 0x83
4 — Get Produced_Connection_ID UINT Placed in CAN Identifier field when the connection transmits
Default = 0x0000 (although this default will never be visible)
5 — Get consumed_Connection_ID UINT CAN Identifier field value that denotes message to be received
Default = 0x0000 (although this default will never be visible)
6 — Get Initial_Comm_Characteristics BYTE Defines the message group(s) across which productions and consumptions
associated with this connection occur
Default = 0x21
This indicates that the slave’s explicit messaging connection produces and
consumes across message group 2. Additionally, this value indicates that
the slave’s MAC ID appears in the CAN Identifier fields of the group 2
messages that the slave consumes and produces.
7 — Get Produced_Connection_Size UINT Maximum number of bytes transmitted across this connection
Default = 500
8 — Get Consumed_Connection_Size UINT Maximum number of bytes received across this connection
Default = 500
9 — Get/Set Expected_Packet_Rate UINT Defines timing associated with this connection
Default = 0x09C4 (2500 milliseconds)
10 _11 — N/A N/A N/A Not used. These attribute IDs have been obsoleted and are no longer defined
for a connection object
12 — Get/Set Watchdog_Timeout_Action USINT Defines how to handle Inactivity/ watchdog timeouts
Default = 0x01 (Auto_Delete)
13 — Get Produced_Connection_Path_Length UINT Number of bytes in the Produced_Connection_Path attribute
Default = 0x0000
14 — Get Produced_Connection_Path Packed
EPATH
Specifies the Application Object(s) whose data is to be produced by this
connection object. See DeviceNet Volume I, Appendix I.
Default = Null PATH
15 — Get Consumed_Connection_Path_Length UINT Number of bytes in the Consumed_Connection_Path attribute
Default = 0x00
16 — Get Consumed_Connection_Path Packed
EPATH
Specifies the application object(s) that are to receive the data consumed by
this connection object. See DeviceNet Volume I, Appendix I.
Default = Null PATH
C440 DeviceNet.book Page 21 Friday, March 25, 2011 10:41 AM
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