AXL E EIP DI16 M12 6M

8421_en_02

PHOENIX CONTACT

20

11.8

Quality of service object (class code 48

Quality of Service (QoS) affects the forwarding and handling of data streams and results in individual data streams being

given differential treatment (usually preferential). QoS can be used, e.g., to guarantee a transmission bandwidth for individual

data streams. The device uses QoS in connection with prioritization.

Class attributes

Instance attributes

Common services

Attribute

Name

Access

Data type

Value

1Version

Get

UINT

1

2

Max instance

Get

UINT

1

Attribute

Name

Access

Data type

Value/Description

1

802.1Q tag enable

Get, Set

UINT

0 = off (default); 1 = on

4

DSCP urgent

Get, Set

USINT

DSCP value for CIP transport class 0/1 Urgent priority message

(default 55)

5

DSCP scheduled

Get, Set

USINT

DSCP value for CIP transport class 0/1 Scheduled priority mes-

sage (default 47)

6

DSCP high

Get, Set

USINT

DSCP value for CIP transport class 0/1 High priority message

(default 43)

7

DSCP low

Get, Set

USINT

DSCP value for CIP transport class 0/1 Low priority message (

default 31)

8

DSCP explicit

Get, Set

USINT

DSCP value for CIP explicit messages (transport class 2/3 and

UCMM) and all other EtherNet/IP encapsulation messages

(default 27)

Service code

Class

Instance

Service name

dec

hex

14

0E

Yes

Yes

Get_Attribute_Single

16

10

No

Yes

Set_Attribute_Single