10. Appendix D: DeviceNet Objects

ID

Access

Name

Need

Type

Value

16#07

Get / Set

Produced connection size

Required

UINT

(size of the input area)

Maximum number of bytes which can be transmitted via this instance’s connection. The value of this attribute should be set to the size of the input area choosed using attribute 16#0E. With the LUFP9 gateway’s default configuration, the value of this attribute is set to 0, as no input area is assigned to the “Bit Strobed Command/Response Connection” object. Maximum size = 8 bytes.

16#08

Get / Set

Consumed connection size

Required

UINT

(size of the output area)

The value of this attribute is not significant in the case of the “Bit Strobed Command/Response Connection” object. This value is set to 8.

N.B. When you configure the “Strobed” connection under RsNetWorx, use a null size output area (“Output2” to “Output6”) if you do not check the box located after “Use Tx Bit:”, or a 1-byte output area if you check this box (production of a single bit by the DeviceNet scanner). An area of any other size will generate a configuration which is not valid for the gateway.

16#09

Get / Set

Expected packet rate

Required

UINT

80 (unit = 1 ms,

 

 

 

 

per 10 ms step)

This attribute defines the periodicity of the exchanges made via the connections of this instance.

16#0C

Get / Set

Watchdog timeout action

Required

USINT

0

This attribute defines the action taken when the watchdog timer is triggered or when the connection is inactive. The various possible values are as follows: 0 (Transition to timed out), 1 (Auto Delete), 2 (Auto Reset) et 3 (Deferred Delete).

16#0D

Get / Set

Produced connection path length

Required

UINT

0

Size of the USINT array of attribute 16#0E (produced connection path).

16#0E

Get / Set

Produced connection path

Required

USINT […]

(area path)

This attribute defines the local path (without MAC ID) of the gateway’s DeviceNet object used to produce the connection’s data. In the case of the current instance, the production path for the “Bit Strobed Command/Response Connection” corresponds to the input area assigned to the “Polled Command/Response Connection” using the “Strobed production” EDS parameter.

16#0F

Get / Set

Consumed connection path length

Required

UINT

0

Size of the USINT array of attribute 16#10 (consumed connection path).

16#10

Get / Set

Consumed connection path

Required

USINT […]

(area path)

This attribute defines the local path (without MAC ID) of the gateway’s DeviceNet object used to receive the data consumed by the connection. In the case of the current instance, the consumption path for the “Bit Strobed Command/Response Connection” corresponds to the output area assigned to this connection using the “Strobed consumption” EDS parameter.

Attributes of instance 16#04 of class 16#05: Change-of-State / Cyclic (Acknowledged) Connection

ID

Access

Name

Need

Type

Value

16#01

Get

State

Required

USINT

0 to 4

This attribute represents the status of the “Change-of-State / Cyclic (Acknowledged) Connection” object. The LUFP9 gateway supports the following values: 0 (non-existent), 1 (in the process of being configured), 3 (connection established) and 4 (timed out). Please see figures 5.16 and 7.4 in volume I of the DeviceNet specifications for further information on this subject.

16#02

Get

Instance type

Required

USINT

1

This attribute defines the instance’s connection type: Messaging connection (0) or I/O connection (1).

16#03

Get / Set

Transport class trigger

Required

BYTE

16#12 or 16#02

This attribute defines the behaviour of the connection. In the case of the LUFP9 gateway’s “Change-of-State / Cyclic (Acknowledged) Connection” object, this attribute takes the value 16#12 or 16#02, broken down as follows:

Bits 0-3 = 2#0010

Transport Class = Class 2.

Bits 4-6 = 2#001 or 2#000

“Change-of-State” mode (2#001) or “Cyclic” mode (2#000).

Bit 7 = 2#0

 

104

Page 104
Image 104
Schneider Electric LUFP9 user manual Type Value 16#07 Get / Set Produced connection size