Owner manual

Publication GMSI10-UM004B-EN-P - May 2010
90 DeviceNet Objects
Class Attributes
The Connection Object provides no class attributes.
Instances
Instance Attributes
Table C.16 Assembly Object Instances
Instance Description
1 Explicit Message Connection for pre-defined connection set
2 I/O Poll Connection
4 I/O COS (change of state) Connection
11 - 17 Explicit Message Connection
Table C.17 Connection Object Instance Attributes
Attr ID
Access
Rule Name Data Type Description
1 Get State USINT State of the object.
2 Get Instance Type USINT Indicates either I/O or Messaging
Connection.
3 Get Transport Class Trigger BYTE Defines behavior of the Connection.
4 Get Produced Connection ID UINT Placed in CAN Identifier Field when the
Connection transmits.
5 Get Consumed Connection
ID
UINT CAN Identifier Field value that denotes
message to be received.
6 Get Initial Comm
Characteristics
BYTE Defines the Message Group(s) across
which productions and consumptions
associated with this Connection occur.
7 Get Produced Connection
Size
UINT Maximum number of bytes transmitted
across this Connection.
8 Get Consumed Connection
Size
UINT Maximum number of bytes received across
this Connection.
9 Get/Set Expected Packet Rate UINT Defines timing associated with this
Connection.
12 Get/Set Watchdog Time-out
Action
USINT Defines how to handle Inactivity/Watchdog
timeouts.
13 Get Produced Connection
Path Length
UINT Number of bytes in the
production_connection_path attribute.