Licensing
The following is a summary. For detailed information about VTScada licensing, refer to https://www.vtscada.com/software-licensing.
License Classes
The following is a brief guide to the various classes of license. Contact Trihedral Engineering for detailed descriptions of each class. License terms may change. In the event of a difference between the following and the current license terms, the current terms will have priority.
Development Licenses
Anyone who is creating applications will need a development license. (See following note about VTScadaLIGHT.)
Runtime Licenses
An installation with a runtime license may run an application, but has limited ability to modify or further develop that application.
To check whether a license is Runtime or Development / Configuration, refer to the page within App. Config. -> Information
Demo Keys
Trihedral Engineering provides demo keys to customers who wish to evaluate the software before purchase and to students attending our courses (*). These enable all features, but will shut down after a few hours of continuous use and will expire at the end of 60 or 90 days. (* Students who have a development license should use that, not the demo key.)
A customer who starts to create an application using a demo key, then purchases a development license, can continue to build their application using the development license. No further development work should be done under a demo license.
An application created or edited using a demo key must be run once under a development license before it can be used on a workstation with a runtime license.
Changes made to the application using a demo license cannot be applied via ChangeSet to copies of the application running a licensed copy of VTScada. This rule applies to both development licenses and runtime licenses.
License Features
Your license key determines which of the following features are enabled:
Development Runtime version | Runtime only version |
VTScadaLIGHT version1 | SupportPlus period |
Alarm Notification System1 | Remote Data Access |
OPC Server* | Application Version Control |
Remote Configuration | Redundancy Capability1 |
Server Capability1 | Custom Installation |
Remote Idea Studio |
Your license key also determines the extent of the following features:
Number of I/O tags | Number of allowed Thin Client1 connections |
1 VTScadaLIGHT installations are any that are installed without a license key. The same installation file is used as with a paid installation. Note the following limitations:
- A maximum of 50 I/O across all running applications.
(Unlimited tags that do not perform input or output.) - A maximum of one Thin Client connection.
- A VPN is required for Thin Client access.
- VTScadaLIGHT installations can be servers for other VTScadaLIGHT workstations but applications that run on full VTScada workstations (development or runtime license) cannot be networked with workstations that have VTScadaLIGHT installed.
- The Alarm Notification system cannot be enabled.
- A maximum of 10 free VTScadaLIGHT installations. OEMs or Integrators who need additional application license packs should contact Trihedral for pricing.
- The VTScadaLIGHT download does not include the VTScada ODBC driver, which is needed to query VTScada data using a 3rd party ODBC-compatible reporting tool.