Avatar

Please consider registering
guest

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
Advanced Search

— Forum Scope —




— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

sp_Feed Topic RSS sp_TopicIcon
OPC UA Server, get notification when variable value is written with same value
November 10, 2017
14:24, EET
Avatar
RoarF
Member
Members
Forum Posts: 5
Member Since:
April 24, 2017
sp_UserOfflineSmall Offline

Hi,

I have used UaVariableNode.addDataChangeListener(), which works fine when value changes. But I need to know when value is written with same value.

November 10, 2017
14:36, EET
Avatar
Jouni Aro
Moderator
Moderators
Forum Posts: 1026
Member Since:
December 21, 2011
sp_UserOfflineSmall Offline

Are you expecting the change from a client application?

If yes, you can use the IoManagerListener to intercept write requests.

November 10, 2017
18:06, EET
Avatar
RoarF
Member
Members
Forum Posts: 5
Member Since:
April 24, 2017
sp_UserOfflineSmall Offline

Thanks, expecting yes

Forum Timezone: Europe/Helsinki

Most Users Ever Online: 1919

Currently Online:
25 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

Heikki Tahvanainen: 402

hbrackel: 144

rocket science: 88

pramanj: 86

Francesco Zambon: 83

Ibrahim: 78

Sabari: 62

kapsl: 57

gjevremovic: 49

Xavier: 43

Member Stats:

Guest Posters: 0

Members: 730

Moderators: 7

Admins: 1

Forum Stats:

Groups: 3

Forums: 15

Topics: 1529

Posts: 6471

Newest Members:

toneylapham544, rondawolinski7, Marypof5711, roycedelargie91, kourtneyquisenbe, ellis87832073466, zkxwilliemae, gabriellabachus, Deakin, KTP25Zof

Moderators: Jouni Aro: 1026, Pyry: 1, Petri: 0, Bjarne Boström: 1032, Jimmy Ni: 26, Matti Siponen: 349, Lusetti: 0

Administrators: admin: 1