User`s guide

Series D8 User’s Guide Chapter 3: Communicating by DeviceNet
Doc. 0600-3120-2000 Watlow Anafaze 63
DeviceNet Object
The DeviceNet object is used to provide the configuration and
status of a physical attachment to DeviceNet.
Table 3.11 DeviceNet Class and Services
Table 3.12 DeviceNet Class Attributes
Table 3.13 DeviceNet Instance Attributes
1
If the Node Address (MAC ID) rotary switches are set to a value from 0 to 63, the MAC ID attribute has only Get
access. If the rotary switches are set to the programmable mode, the MAC ID attribute has both Get and Set ac-
cess.
2
If the Baud Rate (data rate) rotary switch is set to 125, 250 or 500k baud, the Baud Rate attribute has only Get
access. If the rotary switches are set to the software programmable mode, the Baud Rate has both Get and Set
access.
Assembly Object
The Assembly object binds attributes of multiple objects,
which allows data to or from each object to be sent or received
over a single connection.
There are several instances of the Assembly object and each
has an attribute 3 with controller parameter values for each
loop concatenated. For example, an explicit get of instance
100, attribute 3 to a D84 controller returns the four set-point
values in one message. This simplifies access to these fre-
quently used parameters.
Class Code 03 hex
Class Services 0E hex Get Attribute Single
Instance Services
10 hex Set Attribute Single
0E hex Get Attribute Single
08 hex Create
09 hex Delete
Attribute Access Name Type Description
1 (1 hex) Get Revision UINT Revision of this object
Attribute Access Name Type Description
1 (1 hex)
Get/Set
1
MAC ID USINT Node Address (0 to 63)
2 (2 hex)
Get/Set
2
Baud Rate USINT Baud Rate (0 to 2)
4 (3 hex) Get Bus-Off Counter USINT
Number of times CAN went to
the bus-off state (0 to 255)
5 (4 hex) Get Allocation Info. STRUCT of: Allocation Information
BYTE Allocation Choice Byte
USINT MAC ID of Master (0 to 63, 255)