- Before upgrading licenses, back up existing
NiagaraAX license files for Windows hosts, and store them in a safe place.
- You can perform migration work on all archived
AX-3.8 stations without all
N4.0 licenses secured, provided that you have at least one
N4.0
Supervisor or engineering workstation converted and licensed. However, you should not start upgrading controllers without first securing
each license in preparation for the upgrade process.
NOTE: The
Niagara 4 license is not backward compatible with any
NiagaraAX install.
- A controller, converted to
N4.0 uses the same host ID as before the conversion. Provided its operating system remains unchanged, a converted
Supervisor PC or engineering workstation also uses the same host ID as before the conversion.
Any new installation of
Niagara 4 (
N4.0) on a PC calculates the host ID for the first time. The end of the installation typically generates a “license request form” for web browser submittal, and includes this calculated
host ID.
You reference the host ID when you request each
N4.0 license.
- You need to submit the license request and receive either the license file, or confirmation of it on the licensing server,
before you can use
Workbench. For related details, refer to the Niagara 4 Installation Guide.
- When you receive a new
N4.0 license file for your
Supervisor, do not copy it back to any
NiagaraAX home’s
licenses folder on the same PC—otherwise
Workbench no longer works. This can also occur if
NiagaraAX host downloads the (
N4) license offered by the licensing server.
In hybrid systems that combine both
N4.0 and
AX-3.8 hosts, you need to retain
Workbench to use for possible station modifications to controllers that remain at
AX-3.8.