OPC UA PubSub DataSetMessage Data Key Frame | OPC UA Standard | Forum

Avatar
Search
Forum Scope


Match



Forum Options



Minimum search word length is 3 characters - maximum search word length is 84 characters
Lost password?
sp_Feed sp_PrintTopic sp_TopicIcon
OPC UA PubSub DataSetMessage Data Key Frame
Avatar
jothi.sankkarraj@eon.com
Member
Members
Forum Posts: 29
Member Since:
04/09/2019
sp_UserOfflineSmall Offline
1
09/10/2019 - 05:27
sp_Permalink sp_Print

In the OPC UA PubSub Spec Part 14, version 1.04 on Page 71, where it describe about the Data Key Frame DataSetMessage Data, in the Table 82 it says that for the FieldCount - The FieldCount shall be omitted if RawData field encoding is set in the EncodingFlags defined in 7.2.2.3.4

Would this mean that even if the field encoding is set to RawData, the server could still include this FieldCount in its bytes that is sends? Or rather how should I interpret this information as a client?

Avatar
Randy Armstrong
Admin
Forum Posts: 270
Member Since:
05/30/2017
sp_UserOfflineSmall Offline
2
09/10/2019 - 08:56
sp_Permalink sp_Print

The spec says the field count is always omitted if the encoding is Raw.

The expectation is the count comes from the metadata.

Forum Timezone: America/Phoenix
Most Users Ever Online: 143
Currently Online: myrupmartin@hotmail.com
17
Guest(s)
Currently Browsing this Page:
1 Guest(s)
Top Posters:
Newest Members:
mhmedfayiz93@gmail.com
Forum Stats:
Groups: 2
Forums: 9
Topics: 565
Posts: 1611

 

Member Stats:
Guest Posters: 1
Members: 98700
Moderators: 10
Admins: 3
Administrators: michael.bryant@opcfoundation.org, thomas.burke@opcfoundation.org, Randy Armstrong
Moderators: matthias.damm@ascolab.com, s.hoppe@beckhoff.com, paul.hunkar@dsinteroperability.com, jouni.aro@prosys.fi, tim.fortin@honeywell.com, Jim.Luth@Schneider-Electric.com, Karl-Heinz Deiretsbacher, stefan.hoppe@opcfoundation.org, alexander.allmendinger@opcfoundation.org, Karl Deiretsbacher