Connection object – Rockwell Automation 22-COMM-D DeviceNet Adapter User Manual
Page 112

C-4
DeviceNet Objects
Class Code
Instances
Instance Attributes
Refer to the DeviceNet Specification for more information.
Connection Object
Hexadecimal Decimal
0x05
5
Instance
Description
1
Master-Slave Explicit Message Connection
2
Polled I/O Connection
4
Change of State/Cyclic Connection
6 – 10
Explicit Message Connection
Attribute
ID
Access
Rule
Name
Data Type
Description
1
Get
State
USINT
0 = Nonexistent
1 = Configuring
2 = Waiting for connection ID
3 = Established
4 = Timed out
2
Get
Instance Type
USINT
0 = Explicit Message
1 = I/O Message
3
Get
Transport Class
Trigger
USINT
The Transport Class Trigger for
this instance
4
Get
Produced Cnxn
ID
USINT
CAN Identifier to transmit on
5
Get
Consumed Cnxn
ID
USINT
CAN Identifier to receive on
6
Get
Initial Comm
Char
USINT
Defines the DeviceNet message
groups that the tx/rx Cnxn’s apply
7
Get
Produced Cnxn
Size
UINT
Max bytes to transmit across this
connection
8
Get
Consumed Cnxn
Size
UINT
Max bytes to receive across this
connection
9
Get/Set EPR
UINT
Expected Packet Rate
(timer resolution = 2 msec.)
12
Get/Set Watchdog Action USINT
0 = Transition to timed out
1 = Auto delete
2 = Auto reset