Hello Community I have configured an OPCua server according to customer requirements. [grafik] To enable my visualization with mappView to access it, I have integrated an OPCuaServer.uaserver. [grafik] Unfortunately, I cannot display any OPCua variables with mappView. I suspect this is due to…

Hi all @kovarj I now tried your second instruciton “ UAExpert, mappView: How to make a secure OPCUA connection to OPCUA server with communication partner validation ”. It works now fine, as I expect. Thank’s for your help. Thread can be closed…

Hello Michel It seems like you want to encrypt the OPC UA communication, as you do not accept unsecured communication. For this you will need to create certificates / key + SSL configuration and add those SSL configurations to mappView (as a OPC UA client) and you OPC UA server. You will find her…

Hi, Have you define an User? [image] And have you define Startup User? [image]

Hi @nicolas_siauve Yes I configured a user. But I can’t define a startup user. In AS4.12 I don’t have the possibility to define the startup user @Michael Thanks for the information, I will try this possibility. I will let you know about my progress…

@kovarj Thanks for the two links. Everything is explained wonderfully step by step, very good! Unfortunately, the result is still the same. No OPC UA variables are still being displayed on the visualization. However, I was able to locate an error message using the logger… “Failed to connect to con…

Hm, the only thing I can tell you is that this error indicates that the OPC UA application rejected the peer’s certificate because it failed validation (for example, it is untrusted, expired, has an incorrect Application URI, or does not match the configured security policy). My step-by-step proced…

Ok, I will try to establish the communication with UAExpert first. I will let you know…

please update us with your findings :slight_smile:

Hi @kovarj Sorry, I was out of office the last 2 weeks. The issue is scheduled for the next 3 weeks. So I will let you know, when there are new findings…

B&R Community

OPCua-Server settings and mappview

Ask Questions HMI & Visualization

kovarj (Jaroslav Kovar) February 5, 2026, 9:36am 5

I think logger will tell you what is your problem. Check records in module Visualiazation and Communication. If you would like configure secure communication I posted recently two articles about that

https://community.br-automation.com/t/how-to-configure-a-secure-connection-between-mappview-server-and-mappview-client/2983

Topic		Replies	Views
UAExpert, mappView: How to make a secure OPCUA connection to OPCUA server with communication partner validation How-To & Wikis mapp-view , plc , opc-ua	8	2466	January 22, 2025
OPC UA access by Certificate B&R Software & Runtime opc-ua	12	1474	June 7, 2024
How to configure a secure connection between mappView server and mappView client How-To & Wikis mapp-view , automation-studio , automation-runtime	2	1377	June 8, 2026
AS4.12 - mappView similation Connection to configured OPC UA server failed B&R Software & Runtime mapp-view , opc-ua	8	586	February 18, 2025
Connecting to an external opc ua server using mappview B&R Software & Runtime mapp-view , opc-ua	2	180	March 21, 2025

OPCua-Server settings and mappview

Related topics