Parameterization
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01/17/2019
7.6 Object 0x48, Quality of Service (QoS)
The
Quality of Service Object
(QoS) is a general term that is applied to
mechanisms used to treat traffic streams with different relative priorities or other
delivery characteristics. Therefore the Ethernet/IP
™ messages are marked with
“Differentiated Service Code Points” (DSCP).
7.6.1 Common Services
Service Code
Service Name
Description
0x0E
Get_Attribute_Single
Returns the contents of the specified
attribute.
0x10
Set_Attribute_Single
Modifies the contents of the specified
attribute.
7.6.2 Class Attributes
No. Access
Name
Data type
Attribute Description
Default
1
Get
Revision
UINT
Revision of this object
0x0001
2
Get
Max Instance UINT
Maximum instance number of an
object currently created in this class
level of the device.
0x0001
3
Get
Number of
Instances
UINT
Number of object instances currently
created at this class level of the
device.
0x0001
4
-
-
-
not implemented
-
5
-
-
-
not implemented
-
6
Get
Maximum
ID Number
Class
Attributes
UINT
The attribute ID number of the last
class attribute of the class definition
implemented in the device.
0x0007
7
Get
Maximum ID
Number
Instance
Attributes
UINT
The attribute ID number of the last
instance attribute of the class definition
implemented in the device.
0x0008
Table 18: Quality of Service, Overview of the class attributes
