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11.5.3 DeviceNet Object
Class Code 0x03. The DeviceNet Object provides for the configuration and status of a DeviceNet port.
11.5.3.1 DeviceNet Object Class Attributes
Attribute
ID
Access
Rules
Name
Data
Type
Description
Default
Value
1 Get Revision UINT Revision of this object. 2
11.5.3.2 DeviceNet Object Instance Attributes
Attribute
ID
Access
Rules
1 Get MAC ID
Description
USINT Node address
Default
Value
--
2 Get Baud Rate USINT Baud rate --
3 Get / Set BOI BOOL Bus-off interrupt 0
4 Get / Set
Bus-Off
Counter
USINT
Number of times CAN went to the bus-off state
0
STRUCT of:
Allocation
Choice Byte
Master’s MAC
ID
BYTE
USINT MAC ID of master
0
0xFF
Notes
• The MAC ID and Baud Rate attributes are not settable via the network (they are set via the drive’s parameter settings). Attempting a Set service will result in a “Service Not Supported” error.
• The setting of the BOI attribute is saved in the DeviceNet unit’s internal EEPROM. If the BOI value is set to TRUE, the DeviceNet interface will attempt to restart the network interface on the occurrence of a CAN bus-off event. This will continue to be the behavior until the Bus-Off
Counter attribute achieves a value of 255. If a CAN bus-off event occurs after this point, the unit will not attempt to restart the network interface: it will remain faulted and isolated from the network until the drive is reset or power cycled.
G7 ASD Multi-Protocol Communication Option and PG Feedback Option Manual 52
11.5.3.3 DeviceNet Object Common Services
Service
Code
Supported
Class Instance
Service Name
0x0E Yes Yes
Get_Attribute_
Single
0x10 N / A Yes
Set_Attribute_
Single
11.5.3.4 DeviceNet Object Specific Services
Service
Code
Supported
Class Instance
Service Name
0x4B N / A Yes
Allocate_
Master/Slave
_Connection_Set
0x4C N / A Yes
Release_Group_2
_Identifier_Set
Description of Service
Returns the contents of the specified attribute.
Modifies the value of the specified attribute.
Description of Service
Requests the use of the Predefined
Master/Slave Connection Set.
Indicates that the specified connections within the
Predefined
Master/Slave Connection Set are no longer desired. These connections are to be released (deleted).
G7 ASD Multi-Protocol Communication Option and PG Feedback Option Manual 53
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