Rockwell Automation 855T DeviceNet Stack Light User Manual - Manual (Page 57)

DeviceNet Information B-8
Publication 855T-UM001C-EN-P May 2005
Class Code 0x0005: Connection Object
No class attributes will be supported for the Connection Object.
Three instances of the Connection Object will be supported. Instance 1 will be the explicit
message connection, instance 2 will be the polled IO connection, and instance 4 will be the
COS/Cyclic IO connection.
Instance 1 is the Predefined Group 2 Connection Set Explicit Message Connection. The
following instance 1 attributes will be supported:
Table B.13
Attribute
ID Access
Rule Name Data Type Value
1 Get State USINT 0 = nonexistent
1 = configuring
3 = established
4 = timed out
2 Get Instance Type USINT 0 = Explicit Message
3 Get Transport Class Trigger BYTE 0x83 — Server,
Transport Class 3
4 Get Produced Connection ID UINT 10xxxxxx011
xxxxxx = node address
5 Get Consumed Connection ID UINT 10xxxxxx100
xxxxxx = node address
6 Get Initial Comm. Characteristics BYTE 0x22
7 Get Produced Connection Size UINT 0x61
8 Get Consumed Connection Size UINT 0x61
9 Get/Set Expected Packet Rate UINT In milliseconds
12 (0C
hex
) Get Watchdog Action USINT 01 = auto delete
03 = deferred delete
13 (0D
hex
) Get Produced Connection Path
Length UINT 0
14 (0E
hex
) Get Produced Connection Path EPATH Empty
15 (0F
hex
) Get Consumed Connection Path
Length UINT 0
16 (10
hex
) Get Consumed Connection Path EPATH Empty