36
DeviceNet Module Installation and Operation Manual
Connection Object
Class code 0x05 — The Connection Class allocates and manages the internal resources associated with
both I/O and Explicit Messaging Connections.
Table 48. Connection Object Attributes.
Table 49. Connection Object Instance Attributes.
Table 50. Explicit Messaging Connection Object Instance Attributes (Instance 1).
Attribute
ID
Name
Data
Type
Access
Rules
Description
Default
Value
1
Revision
UINT
Get
Revision of this object
2
2
Max Instance
UINT
Get
Maximum instance number of an
object currently created in this class
level of the device
2
Connection Instance ID #
Description
1
Reference on
pg. 36, Explicit Messaging Connection Object Instance Attributes
2
Reference on
pg. 37, Poll Connection Object Instance Attributes (Instance 2).
Attribute
ID
Name
Data
Type
Access
Rules
Description
Default
Value
1
State
USINT
Get
State of the object
00 = Non-existent
01 = Configuring
02 = Waiting for connection ID
03 = Established
04 = Timed Out
05 = Deferred Delete
-
2
Instance_type
USINT
Get
Indicates connection type
0
(Explicit
Message)
3
Transportclass_trigger
USINT
Get
Connection behavior
0x83 (Server
Transport
Class 3)
4
Transmitted_connection_id
UINT
Get
Placed in CAN ID field when
transmitting
0x700
(Conn. ID
dependant on
MAC ID)
5
Received_connection_id
UINT
Get
CAN ID field value denoting received
messages
0x602
(Conn. ID
dependant on
MAC ID)
6
Initial_comm_characteristics
USINT
Get
Defines Sending/Responding
message groups
0x21
(Send: Gr. 3)
(Resp: Gr. 3)
Summary of Contents for DEV002Z
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