- January 22, 2018
January 22, 2018 - Safety CPU modules that can now function as both a safety controller and a safety device are launched by ABB. The modules, when used with ABB’s AC500/AC500-S programmable logic controller (PLC), feature the ability to exchange process and safety data, not only from one controller to multiple devices but also from one device to multiple controllers, using PROFINET/PROFIsafe shared device functionality.
Now hybrid interconnected PLC control systems can extend traditional centralized or distributed control. As such, each controlled machine can deliver process and safety data in real-time, simultaneously, to several central control systems.
With the solution, a maximum of 1440 bytes of process data including up to 384 bytes of functional safety data can be allocated for up to four PLC controller systems.
ABB’s modular approach allows splitting a complex system into different tasks, such as central controls for production and for storage handling or automatic control and manual operator control desks. The data can be shared in real-time from machines to different central PLC controllers.
Furthermore, ABB’s solution uses communication modules as add-ons for process and safety data exchange, thereby being able to flexibly modify existing systems via an extension for controller and/or device. With distributed control, where data flows from one system to another, the control logic is spread across the facility, which enhances the overall system performance. The control approach allows optimizing such systems to have all needed control and safety data available at a given time.
These PLC modules target system integrators that are building complex installations, and need flexible control systems in all kinds of industrial applications. Typical applications include remote control of machines and equipment in harbors, airports, distribution centers and production facilities. Often in such industries, the control system is altered or updated to allow for production changes or extensions to the facilities. During such upgrades or maintenance, it is important that the central control systems are available. These could be manual locations with remote control access for unexpected occurrences.
Now each machine can deliver the process and safety data in real-time, simultaneously, not only to several central control stations but also to special control systems. For example, condition monitoring installations can now feature safety on-board that analyzes the status of an automatic guided vehicle’s brakes.
The modular architecture enables existing control systems to be extended with communication controller and device functionality. Furthermore, standard controller communication interfaces can be re-used by the safety controller.
ABB is a specialist in electrification products, robotics and motion, industrial automation and power grids, serving customers in utilities, industry and transport & infrastructure globally. Continuing a history of innovation spanning more than 130 years, ABB operates in more than 100 countries with about 136,000 employees.