Abstract: A method is disclosed for a system including at least one process management computer and a number of field devices, whereby status and control signals are transmitted between at least some of the field devices and the process management computer using a TCP/IP protocol over a communication channel, preferably a radio connection and/or the Internet. A process management system includes a process management computer with a web-server, a client computer with an Internet browser and a number of sensors and actuators. The process management system may preferably be operated by way of the Internet, using the client computer.

Abstract: A method for synchronizing a first control device and a second control device of a redundantly structured automation device that controls a technical process is provided. The first control device and the second control device are connected to each other. The first and second devices include functional components which implement the functions that control the technical process. The first control device performs the functions in the functional components for controlling the technical process in cycles, thus creating internal states of the functional components. During control of the technical process by the first control device, information about the internal states of the functional components is transferred, distributed over several cycles, to the second control device. The second control device assigns the transmitted information about the internal states to the functional components. In addition, a corresponding redundantly structured automation device is provided.

Abstract: The invention relates to a method in which at least one process management computer (7) and a number of field devices (FD) are applied, whereby status and control signals are transmitted between at least some of the field devices and the process management computer using a TCP/IP protocol over a communication channel, preferably a radio connection (F) and/or the Internet (15). According to the invention, a process management system (5) comprises a process management computer (7) with a web-server (9), a client computer (20) with an internet browser (22) and a number of sensors (S) and actuators (A). The process management system (5) may preferably be operated by means of the internet (15), using the client computer (20).

Abstract: The invention relates to a process control system comprising a calculating unit enabling a charge value (W) to be determined from operations occurring in the process control system. Preferably, said process control system comprises a process control computer with a web server and a computer which is used to access the processes control computer via Internet. The charging value (W) is especially a service fee which is to be paid to an application service provider by a user of the process control system.