Abstract: A valve arrangement (10) for industrial automation, including at least one pneumatic valve module (4) with a module housing (5), the valve module (4) having a working port (2), an electric drive device, and at least one actuator element (6) which is arranged in the module housing (5), can be positioned, in particular proportionally, by means of the electric drive device and via whose position a valve module output pressure at the working port (2) and/or a flow rate through the working port (2) can be set, wherein the valve module (4) further has a valve module pressure sensor (7) for detecting the valve module output pressure, the valve arrangement (10) further including a diagnostic device (8) which is configured to provide a diagnostic function on the basis of the detected valve module output pressure, the diagnostic function including a failure prognosis of the valve module, a compressed air leakage detection, a compressed air consumption detection and/or a compressed air consumer localization.

Abstract: A valve device including an outlet port, a first valve unit with a first valve element for setting a first throttle opening for influencing a first airflow of pressurised air which is to be output at the outlet port or is to be released via the outlet port, a first throttle control loop for the closed-loop control of the first throttle opening according to a first setpoint, a pressure control loop for the closed-loop pressure control of an outlet pressure present at the outlet port to a pressure setpoint amid the use of a first throttle control loop as a subordinate control loop, wherein on closed-loop pressure control the pressure control loop specifies a first throttle setpoint to the first throttle control loop as the first setpoint, wherein the valve device is further configured to provide a throttle setting function and, within the throttle setting function, to limit the first throttle opening to a first limitation value and/or within the throttle setting function to specify a first direct setpoint which

Abstract: A valve device including an outlet port, a first valve unit with a first valve element for setting a first throttle opening for influencing a first airflow of pressurised air which is to be output at the outlet port or is to be released via the outlet port, a first throttle control loop for the closed-loop control of the first throttle opening according to a first setpoint, a pressure control loop for the closed-loop pressure control of an outlet pressure present at the outlet port to a pressure setpoint amid the use of a first throttle control loop as a subordinate control loop, wherein on closed-loop pressure control the pressure control loop specifies a first throttle setpoint to the first throttle control loop as the first setpoint, wherein the valve device is further configured to provide a throttle setting function and, within the throttle setting function, to limit the first throttle opening to a first limitation value and/or within the throttle setting function to specify a first direct setpoint which