Instances, Instance attributes, Instances instance attributes – Rockwell Automation 1440-TPS02-01RB XM-320 Position Module User Manual

Page 99

Advertising
background image

Publication GMSI10-UM005C-EN-P - May 2010

DeviceNet Objects 91

Instances

Instance Attributes

Table C.14 Connection Object Instances

Instance

Description

1

Explicit Message Connection for pre-defined connection set

2

I/O Poll Connection

3

I/O Strobe Connection

4

I/O COS (change of state) Connection

11 - 17

Explicit Message Connection

Table C.15 Connection Object Instance Attributes

Attr ID

Access
Rule

Name Data

Type

Description

1

Get

State

USINT

State of the object.

2

Get

Instance Type

USINT

Indicates either I/O or Messaging
Connection.

3

Get

Transport Class Trigger

BYTE

Defines behavior of the Connection.

4

Get

Produced Connection ID

UINT

Placed in CAN Identifier Field when the
Connection transmits.

5

Get

Consumed Connection
ID

UINT

CAN Identifier Field value that denotes
message to be received.

6

Get

Initial Comm
Characteristics

BYTE

Defines the Message Group(s) across
which productions and consumptions
associated with this Connection occur.

7

Get

Produced Connection
Size

UINT

Maximum number of bytes transmitted
across this Connection.

8

Get

Consumed Connection
Size

UINT

Maximum number of bytes received across
this Connection.

9

Get/Set

Expected Packet Rate

UINT

Defines timing associated with this
Connection.

12

Get/Set

Watchdog Time-out
Action

USINT

Defines how to handle Inactivity/Watchdog
timeouts.

13

Get

Produced Connection
Path Length

UINT

Number of bytes in the
production_connection_path attribute.

14

Get

Produced Connection
Path

Array of
USINT

Specifies the Application Object(s) whose
data is to be produced by this Connection
Object. See DeviceNet Specification
Volume 1 Appendix I.

Advertising