8 class id 05h connection object, 9 instance 1 attributes: explicit message instance – GE Industrial Solutions AF-650 GP DeviceNet User Manual

Page 30

Advertising
background image

Instance

Access

Size

Description

Par. DN-10 selection:

20

Set

2 Words

DeviceNet AC/DC Profile

Instance 20/70

21

Set

2 Words

DeviceNet AC/DC Profile

Instance 21/71

70

Get

2 Words

DeviceNet AC/DC Profile

Instance 20/70

71

Get

2 Words

DeviceNet AC/DC Profile

Instance 21/71

100

Set

2 Words

Drive specific, no PCD Words

Instance 100/150

101

Set

4 Words

Drive specific, 2 PCD Words

Instance 101/151

150

Get

2 Words

Drive specific, no PCD Words

Instance 100/150

151

Get

4 Words

Drive specific, 2 PCD Words

Instance 101/151

5.3.8 Class ID 05h Connection Object

This is a standard DeviceNet Object for allocation and managing I/O and explicit messaging connections. For this class three Instances are supported: Explicit
Messages, Polled I/O and Change of State connections.

The attributes supported for the different instances are listed below.

5.3.9 Instance 1 Attributes: Explicit Message Instance

Attribute

Access

Name

Data type

Description

1

Get

State

USINT

State of the object

2

Get

Instance Type

USINT

Indicates either I/O or Explicit Message

3

Get

Transport Class
Trigger

USINT

Defines behaviour of the connection

4

Get

Produced Con-
nection ID

UINT

CAN Identifier Field when the connection transmits

5

Get

Consumed Con-
nection ID

UINT

CAN Identifier Field value that denotes message to be received

6

Get

Initial Communi-
cation Character-
istics

USINT

Defines the message group(s) across which productions and consumptions as-
sociated with this connection occur

7

Get

Produced Con-
nectin size

UINT

Maximum number of bytes transmitted across this connection

8

Get

Consumed Con-
nection size

UINT

Maximum number of bytes received across this connection

9

Get/Set

Expected Package
Rate

UINT

Defines value used in Transmission Trigger Timer and Inactivity/Watchdog timer

12

Get

Watchdog time-
out action

USINT

Defines how to handle Inactivity/Watchdog timeout

13

Get

Produced Con-
nection Path
Length

UINT

Number of Bytes in the produced connection path attribute

14

Get

Produced Con-
nectino Path

Array of USINT

Specifies the Application object(s) whose data is to be produced by these Con-
nection Objects

15

Get

Consumd Con-
nection Path
Length

UINT

Number of bytes in the consumed connection path attribute

16

Get

Consumed Con-
nection Path

Array of USINT

Specifies the Application object(s) that are to receive the data consumed by this
Connection object

17

Get

Production Inhibit
Time

UINT

Defines minimum time between new data productin. This attribute is required for
I/O Client connection.

AF-600FP /650 GP DeviceNet Operating Instructions

29

5

Advertising