The OAS combines the functions of a Network Engine with a Metasys Server.
As a Site Director, the OAS Standard supports up to two supervisory devices, 200 field devices, and 20,000 objects using BACnet/IP and Remote Field Bus integrations. The OAS supports integration with the following devices and systems: C•CURE-victor, Modbus, M-Bus, KNX, and OPC Unified Architecture (UA).
The OAS provides the Site Management Portal (SMP) and Metasys User Interface (Metasys UI).
Figure 1. OAS system diagram