ABB has moved from using just one central PLC controller to that of multiple controllers capable of communicating with many machines in real-time. Now each machine controller can exchange big volumes of process and safety data in real-time to more than one central control system simultaneously.
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 high volumes of process and safety data in real-time, simultaneously, to several central control systems. With the new 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, thereby providing faster reaction to optimize the production and improve the predictive maintenance that leads to less downtime.
ABB’s flexible and 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.
These new PLC modules target system integrators that are building complex installations, yet demand 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. 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.
