DeviceNet Option User's Manual

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3.5.3.1. 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
1
(I/O)
3 transportClass_trigger USINT Get Connection behavior
0x83
Server
Transport
Class 3
4 produced_connection_id UINT Get
Placed in CAN ID field when
transmitting
0x3C0*
5 consumed_connection_id UINT Get
CAN ID field value denoting received
messages
0x405*
6 initial_comm_characteristics USINT Get
Defines producing / consuming
message groups
0x1
Send: Gr. 1
Resp: Gr. 2
7 produced_connection_size UINT Get
Max number of bytes transmitted across
this connection
4
8 consumed_connection_size UINT Get
Max number of bytes received across
this connection
4
9 expected_packet_rate UINT Get/Set
Defines timing associated with this
connection
250
12 watchdog_timeout_action USINT Get Inactivity/watchdog timeout action
0
(Timed Out)
13
produced_connection_path_l
ength
UINT Get
Number of bytes in
produced_connection_path
attribute
6
14 produced_connection_path
USINT
(ARRAY)
Get
Specifies Application Object(s)
whose data is to be produced by
this connection
0x20 0x04
0x24 0x46
0x30 0x03
Instance
70
15
consumed_connection_path
_length
UINT Get
Number of bytes in
consumed_connection_path
attribute
6
16 consumed_connection_path
USINT
(ARRAY)
Get
Specifies Application Object(s) whose
data is to be consumed
by this connection
0x20 0x04
0x24 0x14
0x30 0x03
Instance
20
17 production_inhibit_time UINT Get
Defines minimum time between new
data production
0
* connection id dependant on device Mac ID
3.5.4. Connection Class Common Services
Supported
Service
Code
Service Name
Class Instance
Description of Service
0x05 Reset Yes Yes Used to reset all resetable connection objects.
0x0E Get_Attribute_Single Yes Yes Returns the contents of the specified attribute.
0x10 Set_Attribute_Single N/A Yes Modifies the value of the specified attribute.
3.5.5. Connection Class Specific Services
The Connection Class provides no object specific services.