Rockwell Automation 1440-SDM02-01RA XM-124 Standard Dynamic Measurement Module - Manuel (Page 123)

Rockwell Automation Publication 1440-UM001C-EN-P - May 2014 123
CIP Objects Appendix B
Connection Object
(Class ID 05H) The Connection Object allocates and manages the internal resources associated
with both I/O and Explicit Messaging Connections.
Class Attributes
The Connection Object provides no class attributes.
Instances
Instance Attributes
Table 37 - Connection Object Instances
Instance Description
1 Explicit Message Connection for pre-defined connection set
2 I/O Poll Connection
3 I/O Strobe Connection
4 I/O COS (change of state) Connection
11…17 Explicit Message Connection
Table 38 - 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 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.
14 Get Produced Connection Path Array of USINT Specifies the Application Object whose data is to be
produced by this Connection Object. See DeviceNet
Specification Volume 1 Appendix I.