Decentralized Logic Simplifies PLC Software
With local control and decentralized operations, fieldbus communication and software components are not required in the main control panel—only diagnostic data are transmitted upstream.
The benefit of this can be seen in a conveyor system, where parts are sorted by correct position and size and, if necessary, removed via a compressed air control system. This process requires extremely quick reaction times, which are achieved by directly connecting inputs and outputs into the module.
Quick reaction times are possible because additional time needed for communication is no longer required, and time-sensitive dependencies on other processes are eliminated.