BACnet OPC Server 2.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program's installer is commonly called BACnOPCServer.exe or BACnOPCServerUI.exe etc.
The most popular versions of the tool 2.1 and 2.0. The program is included in Internet & Network Tools. This program was originally designed by SCADA Engine. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software.
From the developer:
The SCADA Engine BACnet OPC Server is a server that provides data access (DA), Alarms and Events (AE), and Historical Data Access (HDA) between OPC clients and BACnet-compliant devices. Reading and writing to all BACnet properties is supported. This makes it possible to configure the On/Off times in BACnet Time Schedules and many other advanced BACnet features.
You may want to check out more software, such as OPC Server Toolkit Demo, Cognex In-Sight OPC Server or SAEAUT SNMP OPC Server, which might be similar to BACnet OPC Server.