Method for bulk data transmission in field bus system, involves selecting field devices by master device, and transmitting data packets by master device over field bus, where packets are received simultaneously by selected field devices

摘要

The method involves selecting two of several field devices (101-103) for bulk data transmission by a master device e.g. programmable logic controller (100), where the field devices are selected by the master device. Data packets are transmitted by the master device over a field bus (104). The data packets are received simultaneously by the selected field devices, where each field device decides whether to participate in the bulk data transmission based on information about nature and type of the data transmitted by the master device. An independent claim is also included for a field bus system.