UR Log Viewer - Release Notes
Release Notes for the UR Log Viewer
Updated: January 12th, 2026
Download the UR Log Viewer HERE
UR Log Viewer 1.4.0.0 release notes
New feature
An error code summary and filtering popup has been added in the Log Reader tab which can be accessed through the new “Filter Error Codes” button. The summary shows error codes in the current view ordered by occurrences and provides an easy way to filter the list. A tool tip with the description of the error code will show on mouseover.

Updated error code definitions
Support for new robot types
Multiple performance and stability improvements
- Faster load times
- Faster search and filtering
- Text search does not crash application
- Ctrl+C does not crash application
RELEASE NOTES FOR UR LOG VIEWER VERSION 1.3.5.0
NEW FUNCTIONALITY
- UR30 support

RELEASE NOTES FOR UR LOG VIEWER VERSION 1.3.4.0
NEW FUNCTIONALITY
- Bug fix on RTDE Elbow values.
RELEASE NOTES FOR UR LOG VIEWER VERSION 1.3.3.0
NEW FUNCTIONALITY
- Bug fix on data visualization for UR10e 12.5kg
RELEASE NOTES FOR UR LOG VIEWER VERSION 1.3.2.0
NEW FUNCTIONALITY
- Torque Chart
- Speed Scaling in velocity charts visible
- Record value selection changed
- Live View removed
- Record default values aligned to ur_service file
- Error codes updated
- UR20 support
- Polyscope 6 support
Release Notes for UR Log Viewer version 1.2.1.0
Release date: May 20th, 2021.
New functionality
- Real-time data graphs
- Y Axis in all charts zoom able
- new chart for Payload/CoG
- new chart Inertia
- new chart FTSensor
- Tool tip errort-imeline legend(error description)
- Text search result now depending on filter check boxes
- Default recording values changed: Checkboxes, time (5min max) and frequency (500)
Bugs
- Wrong Current window (LA-41)
- Better catching damaged files
- flightrecords
- zip files
- logfiles
- Text search field reset if you delete all character
- Error Timeline remove double entries
Release Notes for UR Log Viewer version 1.2.0.0
Release date: January 13th, 2020.
New functionality
- Real-time data graphs
- Force Chart, Joint Temperature Chart, Joint Voltage Chart, GP IO Chart.
- Improved general design of all charts.
- RTDE Values GP INT and GP Float implemented.
- Log Reader
- Log data will be reloaded if language is changed.
- Added option to "Open all Groups" in Log Reader Tab.
- Option for an aggregate view in Error Timeline.
- Improved performance, including when loading larger sets of data
- MSI installation type.
Release Notes for UR Log Viewer version 1.1.0.0
New functionality
- Real-time data graphs
- In real-time data view, the script line number is shown on the Position graph.
This enables easily to correlate real-time data with the relevant sections of the executed user program. - This is only available with robots w. PolyScope 5.9/3.14 and above. If a lower version is used where script line is not recorded, the index is shown.
- In real-time data view, the script line number is shown on the Position graph.
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Log History overview
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It is now possible to copy multiple lines of log messages
Multiple lines can be selected while holding CTRL or SHIFT - Focus is kept on the selected error code, if view is changed (selecting Info, Warning, etc.)
-
- New error code timeline view
- A new view of a timeline of error occurrence over time can be shown by right-clicking selected error codes in the Log History view.
- Users are able to select default error codes, or show only selected errors
- Users are able to toggle between bar and graph charts
- Users can select desired start-and end-dates for the timeline view
- Log Analysis
- If CB3 Polyscope version is older than 3.12, the version field is marked red and a message will be displayed.
- Data Recording
- Simplification of the RTDE values to record
- Implemented tool-tips to describe RTDE fields
- Ability to perform continuous recordings.
This enables to record data over longer periods of time, eg. to track less-frequently occurring issues- Users can select the amount of time recorded per file
- Log Viewer will create a new recording file for each increment of the selected recording time until recording is stopped
- We recommend to configure 100Hz and 30min settings for longer periods.
- Language support
- Users can now select language in the Help-tab
- Implemented the following user interface and error code description languages:
EN DE DK FR ES PT RU ZH TR - The following languages are only available for error codes (with EN user interface).
IT NL JP CS KO HU PL NO RO SK SL SV - Developer Messages are not translated.
Bug fixes
- Fixed an issue where the backup log history (with .bak-extension) was not exported in "Export from robot"-tab
- Fixed an issue where clicks caused wrong actions
- General performance improvements