The complete guide to ABB's enterprise-level distributed control system for large-scale industrial automation.
ABB System 800xA is an enterprise-level distributed control system (DCS) that integrates process control, electrical control, safety systems, and asset management into a unified platform. It uses AC800M controllers (M-line) and is designed for large, complex facilities in industries like oil & gas, power generation, and chemicals. System 800xA supports thousands of I/O points, multi-site operations, and comprehensive third-party integration.
System 800xA represents ABB's flagship automation platform, introduced in 2004 as the evolution of the Advant OCS and Industrial IT platforms. The "xA" stands for "Extended Automation," reflecting its philosophy of integrating all aspects of plant automation—process control, electrical systems, safety, and telecommunications—into one cohesive system.
Unlike traditional DCS platforms that focus solely on process control, System 800xA provides a single engineering environment for all automation disciplines. This integration reduces complexity, lowers lifecycle costs, and improves operational efficiency for large industrial facilities.
Single engineering environment for process control, electrical systems, drives, instrumentation, and safety—eliminating integration gaps between disciplines.
Supports facilities from hundreds to hundreds of thousands of I/O points, with multi-site coordination for enterprise-wide visibility and control.
SIL 2/3 certified safety system integrated with process control, providing unified operator interface for both normal operations and emergency response.
Built-in asset optimization with predictive maintenance, device diagnostics, and performance monitoring across all connected equipment.
Extensive protocol support: OPC, Modbus, PROFIBUS, PROFINET, FOUNDATION Fieldbus, HART, IEC 61850 for electrical integration.
Multi-site architecture enables centralized monitoring and management of geographically distributed facilities from a single control room.
System 800xA is built around the AC800M controller, ABB's M-line (Master line) processor that superseded the AC450 from the Advant Master system. The "M" designates this as the enterprise/master controller family, distinct from the F-line (Freelance) controllers.
Business systems integration, MES, ERP connectivity, enterprise reporting
Operator workstations, engineering stations, historians, asset management
AC800M controllers, safety controllers, connectivity servers
S800 I/O, PROFIBUS devices, FOUNDATION Fieldbus, HART instruments, drives
System 800xA is the right choice when your facility requires enterprise-level capabilities that go beyond standalone process control:
Facilities with thousands to hundreds of thousands of I/O points requiring centralized management
Need to integrate MV/LV switchgear, motor control centers, and power distribution with process control
SIL 2/3 safety requirements with integrated safety and process control on one platform
Enterprise-wide visibility across multiple geographic locations from centralized control
Need to integrate diverse systems: third-party PLCs, analyzers, drives, business systems
Upstream, midstream, downstream operations
Petroleum refining and petrochemicals
Conventional and renewable power plants
Integrated mill operations
Mineral processing and smelting
Specialty and bulk chemical production
System 800xA is ABB's enterprise-level distributed control system (DCS) designed for large, complex industrial facilities. It provides integrated process control, electrical control, safety systems, and asset management in a single platform, supporting thousands of I/O points and multiple plant sites.
System 800xA uses AC800M controllers, which are part of ABB's M-line (Master line). The AC800M superseded the AC450 controller from the Advant Master system. It supports high-speed processing, redundancy options, and extensive communication protocols.
System 800xA is designed for large enterprise facilities requiring integration of process control, electrical systems, and safety in one platform. Freelance is optimized for small to mid-size process applications with simpler deployment. They are parallel product lines—neither replaces the other.
System 800xA is used in oil & gas, refining, petrochemicals, power generation, pulp & paper, metals & mining, and pharmaceuticals—any industry requiring enterprise-scale automation with integrated electrical and safety systems.
Yes. System 800xA supports OPC, Modbus, PROFIBUS, PROFINET, FOUNDATION Fieldbus, HART, and many other protocols. Its open architecture allows integration with third-party PLCs, drives, analyzers, and business systems.
With 35+ years of ABB automation experience, Gross Automation provides System 800xA components, engineering support, and migration services for enterprise facilities nationwide.
