What's new - viewLinc 5.2

Vaisala viewLinc Enterprise Server version 5.2 User Guide

Document code

M212933EN

Revision

Language

English

Product

viewLinc 5.2

Document type

User guide

Vaisala viewLinc 5.2.1 provides you and your team with new integrated feature functionality to expand your network monitoring and reporting capabilities.

New viewLinc 5.2.1 features
Feature	Description
VDL200 support	viewLinc ES now supports the use of VDL200 data loggers. This change will make your viewLinc deployment easier to set up and use, more reliable, and more economical. VDL200s have a display, allowing users to read directly off the device. They don't require an intermediary communication device to connect to viewLinc; all you need to do is plug it into the Ethernet. As well, VDL200s have removable probes, allowing you to keep the device in your environment instead of having to send it for calibration.
Backup/restore tool	Your viewLinc ES installation now includes the BackupManager tool in the download package. Prior to viewLinc version 5.2.1, you had to request this tool from Support. As part of your disaster recovery strategy, use this tool to take snapshot delta backups of viewLinc data and to restore that backup if a data-loss event occurs.

Changes for viewLinc 5.2.1
Feature	Description
Trend-line gaps	If you reduce the sample rate, older samples (that is, data stored prior to version 5.2) will appear to have gaps in the trend line
False-alarm improvements for problematic channel types	For DL series loggers, data sample inconsistency alarms only occur with temperature and humidity probes. To reduce the number of false alarms, the system no longer detects prolonged differentiating real-time and historical readings for DC Voltage, MilliAmp, and Thermocouple channel types.

New viewLinc 5.2 features
Feature	Description
Active Directory	You can simplify user authentication in viewLinc by using Microsoft Azure Active Directory to manage identity and access management for your organization.
Korean language support	The user interface language can be set to Korean. The Tours tutorial content is also available in Korean.
OAuth 2.0	viewLinc now supports using OAuth 2.0 authorization framework to help you enable email authentication for your users.

To increase the number of monitored devices on your system, an additional viewLinc license may be required. To see the remaining available device room see Help > About.

Key changes for viewLinc 5.2
Feature	Description
New historical data alarm types	Historical data is delayed The delayed historical data alarm indicates that the device is still communicating with the viewLinc server, but it will take some time before the system processes the previously generated data and catches up with the real-time data. Historical data is unrecoverable The unrecoverable historical data alarm indicates that the system didn’t receive or was unable to process all of the historical data because it is missing or doesn't exist. The system now considers the data as unrecoverable. These new alarm types replace the Missing historical data alarm.
New provisional threshold alarm	In rare cases in which the system is receiving real-time data but has delayed historical data that indicates a potential alarm condition, the system generates a provisional alarm. This alarm only occurs for RFL100 loggers and if a threshold alarm delay is set. After the system receives the missing data, the provisional alarm will either: disappear because the excursion was temporary, and conditions have returned to acceptable levels, or become a true threshold alarm because subsequent data confirmed that the excursion is persisting. Provisional alarms are intended as proactive warnings to viewLinc users. Instead of waiting for confirmation of an alarm condition, which could be delayed by a communication problem, users can take action to immediately to check their physical setup for issues.
False-alarm improvements for problematic channel types	For DL series loggers, the missing data alarm only occurs with temperature and humidity probes. To reduce the number of false alarms, the system no longer detects prolonged differentiating real-time and historical readings for DC Voltage, MilliAmp, and Thermocouple channel types.
Communication security enhancements	SSL certificate improvements Additional file types supported. Starting in viewLinc 5.2, additional digital certificate file formats are supported for generating the SSL certificate and key during the installation or upgrade of viewLinc Enterprise Server. Previously, viewLinc only allowed CRT and KEY files, but now you can also use Distinguished Encoding Rules (DER) files and Personal Information Exchange (PFX) file types. Secure host checking viewLinc now performs a secure host check for all new installations and upgrades. For new users, this means the install wizard will prompt you to provide a list of all the URLs and aliases that your users will access the viewLinc server from. For upgrade users, the upgrade wizard will list the allowed URLs and aliases in your existing certificate file and ask you to confirm the list. TLS 1.3 viewLinc 5.2 uses the faster and more secure TLS 1.3 for its security protocol.
Secure host checking	viewLinc performs a secure host check for all new installations and upgrades. For new users, this means the install wizard will prompt you to provide a list of all the URLs and aliases that your users will access the viewLinc server from. For upgrade users, the upgrade wizard will list the allowed URLs and aliases in your existing certificate file and ask you to confirm the list. In both cases, users will only be able to connect to the viewLinc web server using the names provided in the certificate, even if they were able to connect in earlier versions of viewLinc.
Removed support for point-of-sale (POS) devices	viewLinc no longer supports use of POS devices as display terminals. Use a computing device such as a laptop, or a web browser on a mobile device to administer or monitor viewLinc.