The AC 800M is a high-performance, modular process controller designed for industrial automation applications, delivering reliable and precise control across diverse process environments. Developed to meet the demands of modern manufacturing, energy, and process industries, it integrates advanced control capabilities, robust hardware, and flexible configuration to optimize operational efficiency and scalability.

AC 800M is a family of rail-mounted modules, consisting of CPUs, communication modules, power supply modules and various accessories. There are several CPU modules to choose from, ranging from single units with medium processing power and memory to fully redundant units with high processing power

Key Features

• Modular hardware design enabling easy expansion and customization based on application requirements
• Support for multiple control architectures: centralized, distributed, or hybrid control strategies
• High processing power with multi-core CPUs, ensuring fast execution of complex control algorithms (e.g., PID, model predictive control)
• Seamless integration with industrial communication protocols (PROFINET, Modbus TCP, OPC UA, Ethernet/IP, HART)
• Redundant configurations (hardware and software) for mission-critical applications, minimizing downtime
• Built-in cybersecurity features to protect against unauthorized access and ensure data integrity
• Intuitive configuration and programming via industry-standard tools (e.g., Control Builder M), supporting IEC 61131-3 languages
• Wide operating temperature range (-20°C to 60°C) and ruggedized design for harsh industrial conditions

Technical Specifications

Application Areas

The AC 800M controller is widely deployed in industries such as:

Advantages

• Scalable design allows for system expansion without replacing core hardware
• High availability through redundancy ensures continuous operation in critical processes
• Interoperability with third-party devices and systems reduces integration complexity
• Energy-efficient operation with low power consumption

• Comprehensive diagnostics and remote monitoring capabilities for predictive maintenance

AC 800M ControllersPM867K01

The CPU board contains the microprocessor and RAM memory, a real-time clock, LED indicators, INIT push button, and a CompactFlash interface.

The base plate of the PM867 controller has two RJ45 Ethernet ports (CN1, CN2) for connection to the Control Network, and two RJ45 serial ports (COM3, COM4). One of the serial ports (COM3) is an RS-232C port with modem control signals, whereas the other port (COM4) is isolated and used for the connection of a configuration tool. The controller supports CPU redundancy for higher availability (CPU, CEX-Bus, communication interfaces and S800 I/O).

The high integrity functionality is enabled by the addition of an SM812 module and the SIL-certified software. The AC 800M High-Integrity also offers IEC 61508 and TÜV-certified control environment for combining safety and business-critical process control in one controller unit without sacrificing the safety integrity.

Only compatible for 800xA 6.0.2 and onwards. Please see Product Update for more information.

AC 800M ControllersPM867K02

The CPU board contains the microprocessor and RAM memory, a real-time clock, LED indicators, INIT push button, and a CompactFlash interface.

The base plate of the PM867 controller has two RJ45 Ethernet ports (CN1, CN2) for connection to the Control Network, and two RJ45 serial ports (COM3, COM4). One of the serial ports (COM3) is an RS-232C port with modem control signals, whereas the other port (COM4) is isolated and used for the connection of a configuration tool. The controller supports CPU redundancy for higher availability (CPU, CEX-Bus, communication interfaces and S800 I/O).

The high integrity functionality is enabled by the addition of an SM812 module and the SIL-certified software. The AC 800M High-Integrity also offers IEC 61508 and TÜV-certified control environment for combining safety and business-critical process control in one controller unit without sacrificing the safety integrity. Only compatible for 800xA 6.0.2 and onwards. Please see Product Update for more information.

Package including:
2 pcs PM867, CPU
2 pcs TP830, Baseplate, width = 115mm
2 pcs TB807, ModuleBus terminator
1 pcs TK850, CEX-bus expansion cable
1 pcs TK851, RCU-Link cable
2 pcs Battery for memory backup (4943013-6) 1 for each CPU

AC 800M ControllersSM812 (HI controllers)

The prime function of SM812, is to provide intelligent supervision of a controller during non-SIL and SIL1-2 operations, and together with a PM867 form a 1oo2 diverse structure for SIL3 applications.

For high availability applications it is possible to have redundant SM812´s that work together with any of the two redundant CPUs. SM812 has a dedicated synchronization link to synchronize active and redundant SM for hot-insert and online upgrade. It is needed during hot-insert and online upgrade situations to copy data between two SM812s in a redundant setup.

The SM812 has a connector with three digital inputs and two digital outputs that can be used for safety-related digital I/O (not process I/O).

The AC 800M is a high-performance, modular process controller designed for industrial automation applications, delivering reliable and precise control across diverse process environments. Developed to meet the demands of modern manufacturing, energy, and process industries, it integrates advanced control capabilities, robust hardware, and flexible configuration to optimize operational efficiency and scalability.

Key Features

• Modular hardware design enabling easy expansion and customization based on application requirements
• Support for multiple control architectures: centralized, distributed, or hybrid control strategies
• High processing power with multi-core CPUs, ensuring fast execution of complex control algorithms (e.g., PID, model predictive control)
• Seamless integration with industrial communication protocols (PROFINET, Modbus TCP, OPC UA, Ethernet/IP, HART)
• Redundant configurations (hardware and software) for mission-critical applications, minimizing downtime
• Built-in cybersecurity features to protect against unauthorized access and ensure data integrity
• Intuitive configuration and programming via industry-standard tools (e.g., Control Builder M), supporting IEC 61131-3 languages
• Wide operating temperature range (-20°C to 60°C) and ruggedized design for harsh industrial conditions

Technical Specifications

Application Areas

The AC 800M controller is widely deployed in industries such as:

Advantages

• Scalable design allows for system expansion without replacing core hardware
• High availability through redundancy ensures continuous operation in critical processes
• Interoperability with third-party devices and systems reduces integration complexity
• Energy-efficient operation with low power consumption
• Comprehensive diagnostics and remote monitoring capabilities for predictive maintenance