Description

Product Overview

The ABB AC800M is a high-performance programmable automation controller (PAC) designed for industrial process control and distributed automation systems. As the core component of ABB’s System 800xA distributed control system (DCS), the ABB AC800M integrates advanced processing power, modular scalability, and multi-protocol connectivity to deliver reliable control for complex industrial applications. With a range of CPU modules (e.g., PM851, PM860, PM866) supporting varying performance levels and redundancy options, the ABB AC800M caters to diverse needs from basic process control to high-integrity safety-critical systems .

Key features include real-time control with deterministic performance, hot-swappable modules for seamless maintenance, and open architecture supporting integration with third-party devices via protocols like Modbus RTU, Profibus DP, Ethernet/IP, and OPC UA. The controller’s modular design allows flexible expansion through communication modules (e.g., CI853 for serial communication, CI858 for Drive Bus) and I/O modules (e.g., S800 series), making it suitable for applications in oil & gas, chemical, power generation, and manufacturing .

The ABB AC800M supports IEC 61131-3 programming languages (Ladder Logic, Function Block Diagram, Structured Text) and is engineered for harsh environments with an operating temperature range of -40°C to +70°C and IP20 protection against dust and accidental contact. Its redundant CPU configuration (e.g., PM861A, PM864A) ensures continuous operation with switchover times ≤10 ms, critical for uptime-sensitive processes .

Technical Specifications

Parameter Name	Parameter Value
Product Model	ABB AC800M
Manufacturer	ABB
Product Type	Programmable Automation Controller (PAC)
CPU Models	PM851 (24 MHz, 8 MB RAM), PM860 (48 MHz, 8 MB RAM), PM866 (133 MHz, 64 MB RAM), PM891 (450 MHz, 256 MB RAM)
Redundancy Support	Dual CPU redundancy (e.g., PM861A, PM864A) with ≤10 ms switchover time
Communication Protocols	Modbus RTU, Profibus DP, Ethernet/IP, OPC UA, Drive Bus, CANopen
I/O Capacity	Up to 96 local I/O modules or 3,000+ distributed I/O points via Profibus
Power Supply	24 VDC ±10% (redundant power options available)
Operating Temperature	-40°C to +70°C
Storage Temperature	-40°C to +85°C
Dimensions	119–160 mm (width) x 186 mm (height) x 127.5–135 mm (depth)
Weight	0.8–1.1 kg
Safety Certification	SIL 3 (HI models), IEC 61508, ISA Secure, CE, UL 508
Environmental Compliance	IP20, IEC 61000-6-4 (EMC), ISA-S71.04 G3 (corrosion resistance)
Programming Environment	ABB Control Builder (IEC 61131-3 compliant)

Key Features and Advantages

Modular Scalability: The ABB AC800M offers a wide range of CPU modules with varying processing power (24 MHz to 450 MHz) and memory (8 MB to 256 MB), enabling cost-effective solutions for both small-scale and large-scale applications. Its hot-swappable design allows online replacement of modules without system downtime, reducing maintenance efforts .

High Availability: Redundant CPU configurations (e.g., PM861A, PM864A) ensure continuous operation with failover times ≤10 ms, critical for processes like oil refining and power generation. The controller’s dual Ethernet ports and redundant power supplies further enhance system reliability .

Open Integration: Supporting Modbus RTU, Profibus DP, Ethernet/IP, and OPC UA, the ABB AC800M seamlessly integrates with third-party devices, legacy systems, and cloud platforms. Its Device Import Wizard simplifies integration of non-ABB devices by converting GSD files into compatible hardware types .

Safety-Critical Capabilities: The AC800M High Integrity (HI) models are certified for SIL 3 applications, combining safety and process control in a single controller. This allows cost-effective implementation of emergency shutdown systems (ESD) and burner management systems (BMS) without separate safety PLCs .

Advanced Programming: The ABB Control Builder environment supports IEC 61131-3 languages and offers pre-engineered function blocks for motor control, PID loops, and batch processes. Its offline simulation feature enables testing of control logic without hardware, accelerating project delivery .

Application Areas

The ABB AC800M is widely deployed in industries requiring robust automation and control:

Oil & Gas: Monitoring and controlling upstream wellheads, midstream pipelines, and downstream refining processes. Its SIL 3 certification makes it suitable for high-integrity pressure protection systems (HIPPS) .
Chemical & Petrochemical: Managing reactor control, distillation units, and hazardous material handling. The controller’s corrosion-resistant design (ISA-S71.04 G3) ensures reliability in harsh chemical environments .
Power Generation: Optimizing steam turbine control, boiler management, and smart grid integration. The ABB AC800M interfaces with renewable energy systems (e.g., solar inverters) for real-time energy management .
Manufacturing: Controlling robotics, conveyor systems, and quality assurance processes. Its high-speed I/O and Ethernet/IP support enable precise synchronization in automotive and food & beverage production lines .
Water & Wastewater: Regulating pump stations, water treatment plants, and wastewater recycling systems. The controller’s Modbus RTU capability simplifies integration with field devices like flow meters and analyzers .

Installation and Maintenance

Installation:

Mounting: Secure the ABB AC800M on a 35mm DIN rail using M4 screws, ensuring adequate airflow. For redundant setups, install dual CPUs with TB801A terminal blocks for synchronized communication .
Wiring: Connect power cables (24 VDC) and communication cables (e.g., Profibus DP, Ethernet) to the designated terminals. Use shielded cables for analog signals to minimize interference .
Configuration: Use ABB Control Builder to program control logic, assign I/O addresses, and configure communication parameters. Import third-party device profiles via the Device Import Wizard for seamless integration .

Maintenance:

Routine Checks: Inspect terminal connections quarterly for tightness and corrosion, especially in humid environments. Clean dust from the module using compressed air .
Firmware Updates: Regularly update firmware via System 800xA to address security patches and performance improvements. Verify compatibility with existing software versions .
Redundancy Testing: Perform annual switchover tests for redundant CPUs to ensure failover functionality. Replace batteries in non-volatile memory modules every 5 years .
Spare Parts Management: Maintain inventory of critical modules (e.g., PM866 CPU, CI853 communication module) to reduce downtime during replacements. ABB offers expedited delivery for urgent orders .

Product Assurance

The ABB AC800M is backed by a 2-year warranty covering defects in materials and workmanship. ABB provides global technical support, including access to certified engineers and comprehensive documentation (e.g., datasheets, installation manuals). For critical applications, ABB offers extended warranties and proactive maintenance plans, including annual system health checks to ensure compliance with safety standards .

HS:8443919090

Contact info

WhatsApp: +86 18030182217
Email: sandydcsplc@gmail.com
Phone: +86 18030182217
Wechat: +86 18030182217
Website: www.xiongbaparts.com

ABB AC800M Programmable Automation Controller (PAC)(XIONGBA)