Hello again, i want to show a OPC value my visualisation. In order to be able to show the unit it is necessary to connect the unit in OPC editor. Further on the widget by choosing the “unit” item at the properties when the “value” property is connected. So far so good and this i know to handle. N…

Hello Jaroslav, yes, this is what im looking for Thank you

i further situation now which i don´t understand. i creat a new unittranslation (formula). i connected it with the widged and did the setting at “unit” and choose my formula. what i get is “xx” in the widget in arsim. what i want to have: the pv Variable is an analog Input at 0 bis 20mA which is…

What to check? Is ‘XX’ present in all values in mappView? If so, then the OPC UA information model configuration is very likely incorrect. Did you bind your OPC UA tag as a node? I think node binding is required for unit functionality, not value binding. If the problem is related to unit configura…

Hallo Jaroslav, it seems a little cracy. After i startet as new after a shutdown and a new build the calculation seems correct and “xx” vanished and the expected behaviour is now there. Thank you for help

A miracle? :slight_smile: No, no, turning it off and on again, or doing a “Build All” and transfer, is the first thing any of us tries when we run into “a strange” issue :wink: I’m glad it’s working now.

Calculate OPC values and using units with "user scale" in mappview

Ask Questions HMI & Visualization

kovarj (Jaroslav Kovar) July 7, 2025, 7:30pm 2

I think you speak about OPCUA, right? maybe unit system with formula is way to go? B&R Online Help

2 Likes

Topic		Replies	Views
User unit in mappView HMI & Visualization mapp-view , opc-ua	4	324	March 24, 2026
Mp Audit Using With Unit Conversion Tags Value Show is Raw Count HMI & Visualization mapp-services , mapp-audit	1	251	January 16, 2024
How to Shift the Decimal Point on a B&R MappView Numeric Input HMI & Visualization mapp-view , opc-ua	5	389	June 23, 2024
Unit conversion in mapp View for rotary and linear axes B&R Software & Runtime mapp-view , opc-ua	2	273	May 16, 2024
User defined units in mappView - NumericOutput HMI & Visualization mapp-view	10	162	January 5, 2026

Calculate OPC values and using units with "user scale" in mappview

Related topics