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
problems with node-red-contrib-opcua
August 31, 2020
16:33, EEST
Avatar
Michael Hecht
New Member
Members
Forum Posts: 2
Member Since:
August 31, 2020
sp_UserOfflineSmall Offline

Hi,

I’m not sure whether this is an issue of prosys server or the mentioned node-red node. What I get with the combination of https://flows.nodered.org/node/node-red-contrib-opcua and prosys server is the following:

– at the server I set variable update (sinus) to 200 ms
– at node red I set the variable interval to 500 ms and the client notification interval to 2 sec
– after starting the workflow I get every 2 seconds 4 totally identical values, i.e. not only values but also timestamps
– if I don’t set the variable interval, I get 10 fully identical values

I expected to get 4 or 10 values but not identical since the server updates the values more frequently.

So my final question is: Is the server able to send a batch of 4 different values every 2 seconds – and the bug is in the opc-ua node of node red – or does the server only send one value every 2 seconds – and the bug is again in the node-red node – or does the server send 4 identical values every 2 seconds – and the bug/restriction is in the server?

September 1, 2020
15:13, EEST
Avatar
Markus Johansson
Moderator
Members

Moderators
Forum Posts: 30
Member Since:
August 6, 2019
sp_UserOfflineSmall Offline

Hi,

In this case and with the correct MonitoredItem and Subscription settings, the server will send 4 different values every 2 seconds. But I cannot say about the operation of node-red-contrib-opcua.

September 1, 2020
19:11, EEST
Avatar
Michael Hecht
New Member
Members
Forum Posts: 2
Member Since:
August 31, 2020
sp_UserOfflineSmall Offline

Markus Johansson said
Hi,

In this case and with the correct MonitoredItem and Subscription settings, the server will send 4 different values every 2 seconds. But I cannot say about the operation of node-red-contrib-opcua.  

Ok, thank you. This information is important to search at the right position for the bug.

Forum Timezone: Europe/Helsinki

Most Users Ever Online: 267

Currently Online:
9 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

hbrackel: 109

pramanj: 86

ibrahim: 71

kapsl: 57

gjevremovic: 49

TimK: 41

fred: 41

Fransua33: 39

Xavier: 34

rocket science: 33

Member Stats:

Guest Posters: 0

Members: 1302

Moderators: 15

Admins: 1

Forum Stats:

Groups: 3

Forums: 15

Topics: 1106

Posts: 4680

Newest Members:

keremcoban, hypnos97, ekosunen40, janellbusby73, huey6201719746, hildanott654389, laurenemay, aman79, dawnpreciado138, daltondoughty96

Moderators: Jouni Aro: 877, Otso Palonen: 32, Tuomas Hiltunen: 5, janimakela: 0, Pyry: 1, Terho: 0, Petri: 0, Bjarne Boström: 642, Heikki Tahvanainen: 402, Jukka Asikainen: 1, moldzh08: 0, Teppo Uimonen: 21, Markus Johansson: 30, Matti Siponen: 100, Lusetti: 0

Administrators: admin: 1