ABB Freelance 800F AC 800F Control System

ABB Freelance 800F AC 800F Control System

System Overview: ControlIT has evolved the control system into IndustrialIT, of which the AC 800F is a key part, seamlessly integrating processor-oriented information into open applications to improve process control using globally recognised industry standards. It has integrated fieldbus capability with 4 high-speed fieldbus lines and supports a wide range of fieldbus types, such as PROFIBUS - DP, Modbus, CAN, Foundation Fieldbus H1, and more.

Module introduction

Base unit: PM 802F and PM 803F with Super Scalar RISC microprocessors, different capacities of RAM and Flash - EPROM, temperature monitoring, watchdog, etc. Controller redundancy can be realised by installing two AC 800F.

Power supply module: SA 801F/SA 811F with 115 - 230V AC input, SD 802F/SD 812F with 24V DC input Redundant power supply, both of them can supply power to AC 800F module, with functions of over-voltage, over-current protection and power-down prediction.

Ethernet modules: EI 801F, EI 802F, EI 803F, EI 811F, EI 812F, EI 813F, etc., complying with IEEE802.3 standard, providing different interface types, supporting 10Base2, 10Base5, 10BaseT communication, and some of them are with battery back-up function.

Other modules: CAN-3 module FI 810F, serial module FI 820F, Profibus module FI 830F, FF/HSE module FI 840F are used to connect to different types of field buses, with corresponding communication rates, interface features and functions; battery module AM 801F provides battery backup for PM802F and AM 811F for AC 800F, ensuring data loss. The battery module AM 801F provides battery backup for the PM802F and AM 811F for the AC 800F, ensuring no loss of data.

Redundancy: Controller redundancy is achieved by installing two AC 800Fs, which are synchronised by means of a redundant communication link with a second Ethernet module; Profibus line redundancy can be achieved by using the redundant link module RLM 01 or a fibre-optic ring, which also allows for redundancy of both the controller and the Profibus line at the same time.

Compatibility: There are differences in compatibility between Control Builder F and AC 800F modules of different software versions, e.g. PM 802F for V6.1 and 6.2, PM 803F for V7.1, 7.2 and 8.1, and the functional characteristics of the different modules are different in different hardware configurations.

Technical parameters and environmental requirements: Each module has parameters such as rated voltage, power consumption, transmission rate, etc. The operating temperature of the system is 0 - 60°C, and the relative humidity is subject to a certain range. The product complies with a number of electromagnetic compatibility standards and electrical protection requirements, after vibration, shock test, the module power dissipation data can be used for cooling system calculations.

Design Advantage

Enhanced system reliability: controller redundancy, the installation of two AC 800Fs and the use of a dedicated redundant communication link of the second Ethernet module ensure that when the master AC 800F fails, the slave AC 800F can quickly and smoothly take over the work, and all the inputs and outputs support redundant operation, which greatly reduces the probability of system failures. 

For example, in scenarios with high continuity requirements such as chemical production, controller redundancy can avoid production interruptions due to individual controller failures and reduce economic losses.Profibus line redundancyUsing the RLM 01 module to convert a non-redundant Profibus line into two redundant lines or adopting a fibre-optic ring network improves the reliability of the line and prevents line failures from affecting data transmission and equipment control.

Guaranteed data transmission stability: Ethernet communication redundancy is standard to ensure stable data transmission. In industrial environments, electromagnetic interference and other factors are prone to affect communication, Ethernet communication redundancy can avoid data loss or transmission interruptions, to ensure that the system's real-time monitoring and control functions operate normally. cable redundancy for Profibus DP (requires external device RLM 01) further enhances the reliability of data transmission, and for a large number of devices in industrial sites relying on Profibus DP communication, it can For the large number of devices in industrial sites that rely on Profibus DP communication, this ensures accurate and timely data transmission between devices and maintains smooth production processes.

Supports continuous operation of the system: Device redundancy and power supply redundancy (24V DC) are designed so that the system can still work normally in the event of partial equipment or power supply failure. In some industrial production that cannot be easily shut down for maintenance, even if some of the equipment has problems, the system can still rely on the redundant equipment to continue to run, buying time for the maintenance of the faulty equipment and guaranteeing the continuity of production. 

The module identification function records plant and operating parameters, which, together with comprehensive diagnostic functions, enables proactive maintenance, detects potential problems in advance, repairs them before they occur, and reduces the impact of sudden failures on system operation.