Siemens Aktiengesellschaft

Alexander Pfister

Herbert Barthel

Heiner Fuchs

Edgar Sigwart

Wolfgang Schmauss

Ingmar Binder

Rainer Mattes

A method for operating a drive control device includes sending and receiving data over a bus connected to a bus port of a drive control device which has in addition to the bus port a communication interface and a memory, loading into the memory a basic functionality, which includes a software interface, for controlling and/or regulating a connected motor, loading into the memory during operation of the drive control device a functionality of a web server which cooperatively interacts with the basic functionality via the software interface, and forwarding to the web server incoming data received via the communication interface for editing or processing.

Method for operating a drive control device and drive control device having means for use in such a method

The invention relates to a system and a method for transmitting telegrams. The system has at least one first communication means provided for sending telegrams and at least one second communication means provided for receiving telegrams, with a telegram having a check value that can be determined from a useful data component of the telegram, with the first communication means having a first telegram counter provided for assigning a count value to a telegram in accordance with a send sequence. To improve error detection during the transmission of telegrams it is proposed that the count value for determining the check value be a constituent of the useful data component is, that information signaling a change in the count value be a constituent of the useful data component when the telegram is transmitted, that the second communication means have a second telegram counter, and that means be provided for synchronizing the first and second telegram counter.

Method and system for transmitting telegrams

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Eggolsheim, Germany

Alexander Pfister