Services & Support > Software Download & Upgrade > 73VR21x > 73VR21x-V6
73VR21x : Paperless Recorder Software Ver.6 Update
Release Date Update Information Updated Version
August 06, 2026 Communication becomes impossible when disconnection from 73VR due to elapsed no-communication time (linger timer) constantly occurs during Modbus communication reception. V6.03.17
When writing a comment during recording on the trend graph screen (the graph direction in the display setting is vertical and the chart speed is set to 1/5 or lower), the comment display position may be undefined or not displayed. The comment display on the trend graph screen is changed to move in sync with the timeline.

< How to confirm the software version of 73VR21x >
Start up 73VR21x and touch on [MENU]-[Config.] and the version of the applications Version 6.03x will be displayed on the top right of the screen and confirm if your 73VR21x must be updated. For a compatible version of the applications update, see Applicable Software Versions on the next page displayed by selecting the update.

< CAUTION! >
DO NOT apply this update to versions other than indicated above.
It may cause malfunctions if it is applied to a wrong version program.