Qos Object (48H) - Anybus CompactCom B40 Network Manual

CIP Objects
6.8

QoS Object (48h)

Object Description
Quality of Service (QoS) is a general term that is applied to mechanisms used to treat traffic streams with
different relative priorities or other delivery characteristics. Standard QoS mechanisms include IEEE 802.1D/Q
(Ethernet frame priority) and Differentiated Services (DiffServ) in the TCP/IP protocol suite.
The QoS Object provides a means to configure certain QoS related behaviors in EtherNet/IP devices.
The object is required for devices that support sending EtherNet/IP messages with nonzero DiffServ code
points (DSCP), or sending EtherNet/IP messages in 802.1Q tagged frames.
Supported Services
Class:
Instance:
Class Attributes
# Name Access
1 Revision Get
Instance Attributes
# Name Access
1 802.1Q Tag Set
Enable
4 DSCP Urgent Set
5 DSCP Set
Scheduled
6 Set
DSCP High
7 DSCP Low Set
8 Set
DSCP Explicit
Anybus ® CompactCom ™ B40 Modbus Serial EtherNet/IP Network Guide
Get_Attribute_Single
Get_Attribute_Single
Set_Attribute_Single
Type Value
UINT 0001h (Object revision)
Type
Value/Description
USINT
Enables or disables sending 802.1Q frames.
Value:
0
1
USINT
CIP transport class 1 messages with priority Urgent
Default: 55
USINT
CIP transport class 1 messages with priority Scheduled
Default: 47
USINT
CIP transport class 1 messages with priority High
Default: 43
USINT CIP transport class 1 messages with priority Low
Default: 31
USINT
CIP UCMM and CIP class 3
Default: 27
Contents:
Disabled (Default)
Enabled
29 (54)
SCM-1202-131 1.1 en-US