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Metasys Software

Metays Open Application Server


The Open Application Server (OAS) is a product of the Metasys system that combines Metasys server and engine capabilities in a single software offering, with optional, add-on features. There are two licensing options available for the OAS, the OAS minimum and the OAS standard. As a Site Director, the OAS Standard supports up to 2 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: ZFP Pro wireless system, C Cure 9000 Access Control, Modbus, M-Bus, and KNX, OPC Unified Architecture (UA). For more information, refer to the Open Application Server (OAS) Installation Guide (LIT-12013222).

OAS is available from Metasys Release 10.1 onwards. You can purchase it as a software-only solution, which you install on a virtual machine, or as a combined hardware and software turnkey solution. OAS supports Metasys UI and the Site Management Portal (SMP).


  • Support of IT standards and Internet technologies - Enables you to install the Open Application Server on your existing IT infrastructure within the building or enterprise and is compatible with industry-standard firewalls.
  • Secure User Access, authenticates users and authorises access priviliges to protect system integrity
  • Flexible system navigation and dynamic user graphics - Compatability with Metasys UI enables the customization of system presentation for different users to enhance information access and facilitate system operation.
  • Alarm and Event Management provides messages to building operators for rapid fault diagnosis and response
  • RESTful APIs enable reading, writing, and commanding of one or more Metasys objects/properties to provide a secure and cost-effective way to bi-directionally integrate with third party applications.

Products List7 items

Product CodeDescription
License enabling this Historical Data feature
License enabling the Potential Problem Areas widget
License enabling the Scheduled Reports feature
License enabling OAS Standard software for new site
License enabling OAS Standard software for upgrading existing site
Three year site subscription service for OAS Standard software
One year site subscription service for OAS Standard software