Known 64-bit limitations and installation
The latest Niagara versions require a 64-bit Windows-based PC. A Supervisor station running under a 64-bit Windows operating system may not support some legacy drivers. Although most limitations do not apply to a typical Supervisor, they should be understood before installation time.
NRE serial support is available for a 64-bit Windows platform. However, serial-based drivers (for example, modbusAsync, flexSerial, various legacy drivers) are not typically licensed on a Supervisor, and, therefore, are not fully tested or supported on a 64-bit platform.
Exceptions to such license rules can occur with 64-bit engineering workstations and demo machines. Again, 64-bit serial operation is not fully guaranteed.
A known issue with the 64-bit serial library may present itself in initialization phases, with usage of a 64-bit Niagara Serial Tunnel client. For related details see the Niagara Drivers Guide.
Installation of the Win64-based Supervisor is like the Win32-based installation, except that separate executables in the root of the Supervisor product image or CD are used to install (setup_x64.exe instead of setup_x86.exe, respectively).
A platform connection to a Win64-based Supervisor provides the identical collection of views as with a Win32-based host. Also, when opening a station running on a Win64 host, you see the same child services under its PlatformServices as with a station running on a Win32 host.