Abb Research Ltd.

Abb Ag

Wolfgang Lasarzik

Armin Gasch

Peter Krippner

Detlef Pape

Andreas Stelter

Wolfgang Scholz

Rolf Merte

Thomas Karte

Urs E Meier

Thomas Kleegrewe

Raiko Milanovic

The invention relates to a process control system having measuring devices and actuators. All of the measuring devices and actuators process information and exchange data amongst themselves. All measuring devices and actuators are interconnected to enable a bi-directional data exchange. Several, or all of the measuring devices and actuators can exchange data with a service unit that can be connected to the devices and actuators. The invention also relates to a method for operating a process control system of this type.

Process control system and method for operating a system of this type

The disclosure relates to a control device for a pneumatically operated actuator in the field of process automation, in particular for continuous control of material flows in the industrial environment. The control device has a communications interface for receiving an electrical setpoint value, and an output for the output of a pneumatic fluid, whose pressure is varied as a function of a control deviation. The received electrical setpoint value is suitable as a process parameter. The control device is connected via a communications channel to an actual-value encoder, which is designed to output an electrical signal corresponding to the actual value of the same process parameter.

Control device for a pneumatically operated actuator

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Nenndorf, Germany

Wolfgang Lasarzik