User Manual

Rockwell Automation Publication 193-UM002I-EN-P - December 2011 241
DeviceNet™ Information Appendix B
The following Instance 4 (Change of State/Cyclic I/O connection) attributes are
supported.
Table 103 - Connection Object Instance 4 Attributes
6 Get Initial Comm
Characteristics
BYTE 0x21
7 Get Produced
Connection Size
UINT 0…8
8 Get Consumed
Connection Size
UINT 0…8
9 Get/Set Expected Packet
Rate
UINT in ms
12 Get/Set Watchdog Action USINT 0 = Transition to timed out
1 = Auto delete
2 = Auto reset
13 Get Produced Connection
Path Length
UINT 8
14 Get/Set Produced Connection
Path
EPATH 21 04 00 25 (assy. inst.) 00 30 03
15 Get Consumed Connection
Path Length
UINT 8
16 Get/Set Consumed Connection
Path
EPATH 21 04 00 25 (assy. inst.) 00 30 03
Attribute
ID
Access
Rule Name
Data
Type Value
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 1 = I/O Message
3 Get Transport Class
Trigger
BYTE Cyclic: 0x03
Cyclic Ack Suppressed: 0x00
COS: 0x13
COS Ack Suppressed: 0x10
4 Get Produced
Connection ID
UINT 01101xxxxxx
xxxxxx = Node address
5 Get Consumed
Connection ID
UINT 10xxxxxx010
xxxxxx = Node address
6 Get Initial Comm
Characteristics
BYTE 0x02 (acknowledged)
0x0F (unacknowledged)
7 Get Produced
Connection Size
UINT 0…8
8 Get Consumed
Connection Size
UINT 0…8
9 Get/Set Expected Packet Rate UINT in ms