Open Application Server overview - Metasys - LIT-12013243 - M4-OASMIN-0 - M4-OASSTD-0 - Server - Open Application Server - 13.0

Open Application Server (OAS) Commissioning Guide

Product name
Open Application Server
Document type
Commissioning Guide
Document number
Revision date
Product status

The Open Application Server (OAS) combines Metasys server and engine capabilities in a single software offering, with optional, add-on features. Two licensing options are available for the OAS: the OAS minimum and the OAS standard. For more information about the OAS versions, see Table 1.

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: ZFR Pro wireless system, C•CURE 9000® Access Control®, Modbus®, M-Bus®, KNX®, and OPC Unified Architecture (UA)®. For more information, refer to the Open Application Server (OAS) Installation Guide (LIT-12013222).

OAS provides database software options to archive licensed historical data using the Microsoft® SQL Server software database, and enables secure communication to a range of network engines, including the NAE, NCE, SNE, and SNC series engines.

OAS is a software-only solution, which you can install on a virtual machine, or as a combined hardware and software turnkey solution. OAS supports Metasys UI and the Site Management Portal (SMP).
Note: From Release 12.0, SMP is available only for existing sites through a software license.
Table 1. OAS versions
Features OAS Minimum OAS Standard
Supports Metasys UI Yes Yes
Supports engines No 2
Can license add-ons Yes Yes
Direct support for field devices 200 200
Supports SMP
Note: SMP requires a license to operate.
Note: Only use to upgrade existing OAS sites, and not new OAS sites.
Yes Yes
Note: The turnkey solution does not support Fault Detection and Fault Triage.