Phoenix Contact Gmbh + Co. Kg

Juergen Jasperneite

Gunnar Lessmann

Detlev Kuschke

Joerg Jeschin

Eugen Breit

The invention relates to a method for optimized transmission of data between a control device and a plurality of field devices that are connected to one another via an IP-based communications network, wherein the data transmission is controlled using a Profinet protocol. The invention further relates to a control and data transmission installation () that is particularly suited to the performance of the method. With the control and data transmission installation (), it is possible to transmit the data to be transmitted from a control device () to a group of field devices () in a single sum frame subdivided into data fields, and to transmit the data to be transmitted from a plurality of field devices to a control device likewise in only one common sum frame subdivided into data fields. In this manner, the transmission rate can be optimized with respect to standard Profinet frames.

Method and system for optimized transmission of data between a control device and a plurality of field devices

An installation is disclosed having a plurality of components which are connected to one another via an Ethernet network, with at least a first of the components having a device for reading data that is intended for that component from a sum frame via a sum frame protocol, as well as a device for reading the sum frame from the data part of an Ethernet MAC frame, with at least one of the components of the installation having a device for embedding the sum frame in the data part of an Ethernet MAC frame, and having a device for transmission of the Ethernet MAC frame via the Ethernet network, and with at least one of the components having a device for insertion of an identifier into the Ethernet MAC frame, which identifier indicates whether the data part of the Ethernet MAC frame contains a sum frame.

Growing community of inventors

Steinheim, Germany

Juergen Jasperneite