Download 6. Configuring the Gateway

Appendix D: DeviceNet Objects
ID
Access Name
Need
Type
Value
0x07
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 0x0E. 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.
0x08
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.
0x09
Get / Set Expected packet rate
80 (unit = 1 ms,
per 10 ms step)
This attribute defines the periodicity of the exchanges made via the connections of this instance.
0x0C
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) and 3
(Deferred Delete).
0x0D
Get / Set Produced connection path length
Required
Size of the USINT array of attribute 0x0E (produced connection path).
0x0E
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.
0x0F
Get / Set Consumed connection path length
Required
Size of the USINT array of attribute 0x10 (consumed connection path).
0x10
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.
Required
UINT
UINT
UINT
0
0
Attributes of instance 0x04 of class 0x05: Change-of-State / Cyclic Producing Connection
ID
0x01
Access Name
Get
State
Need
Type
Value
Required
USINT
0 to 4
This attribute represents the status of the “Change-of-State / Cyclic Producing 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.
0x02
Instance type
Get
Required
USINT
1
This attribute defines the instance’s connection type: Messaging connection (0) or I/O connection (1).
0x03
Get / Set Transport class trigger
Required
BYTE
0x12 or 0x02
This attribute defines the behaviour of the connection. In the case of the LUFP9 gateway’s “Change-of-State /
Cyclic Producing Connection” object, this attribute takes the value 0x12 or 0x02, 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).
Bits 7 = 2#0
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