A second communication circuit of each of solenoid valve modules other than a terminal solenoid valve module receives a signal from a switching line located in the next-stage solenoid valve module, and the second communication circuit of the terminal solenoid valve module that receives no signal from the switching line transmits a solenoid valve control signal and signals related to diagnostic information of the plurality of solenoid valve modules to a communication module via a receiving line.

A device for supplying to and/or controlling hydraulically operated components of a die casting machine, comprising a base block with a main inlet opening and a main outlet opening for hydraulic medium, and also at least two different module components, which are selected from the group consisting of core-pulling modules, core-pulling-relief modules, booster modules, secondary movement modules, and vacuum modules, and which are fluidically connected to the base block. The present invention relates to a die casting machine with such a device and to a method for supplying to and/or controlling hydraulically operated components of a die casting machine.

A manifold includes multiple first valve mount portions, on each of which three electromagnetic valves are arranged side by side, or a plurality of second valve mount portions, on each of which two electromagnetic valves are arranged side by side, or includes at least one of the first valve mount portions and at least one of the second valve mount portions. Waterproof covers are attached to the valve mount portions of the manifold to each cover the three or two electromagnetic valves mounted on the valve mount portion. Thus, a waterproof manifold electromagnetic valve is formed.

A hydraulic valve control unit is for an open center hydraulic system including a pump, a shunt valve and one or more actuator valves coupled to the shunt valve. Each actuator valve controls a corresponding actuator's position. The hydraulic valve control unit has a processor and a memory, containing instructions executable by the processor, and is configured to obtain user input data indicative of a desired actuator's position, determining opening area values of the one or more actuator valves using a predetermined relation dependent on the user input data, determining an opening area value of the shunt valve using the predetermined relation dependent on the user input data, controlling the shunt valve based on the opening area value of the shunt valve, and controlling the one or more actuator valves based on the opening area values of the one or more actuator valves.

A field bus solenoid valve assembly has a sensor for detecting the commencement of an actuation cycle for moving a piston in a cylinder and piston assembly. A position sensor detects an end position of a piston in a cylinder and piston assembly at the end of the actuation cycle. A timer times the elapsed time between the initiation of the actuation cycle of the piston and when the position sensor for detecting an end position detects the piston in its end position at the end of the actuation cycle. A comparator operably connected to a storage device and the sensors for comparing elapsed time from the sensors to a normalized time or profile and a predetermined tolerance boundary in the storage device. An alarm device is actuated if the elapsed time is outside of the set tolerance boundary.

An electropneumatic controller has an electropneumatic control unit on which is provided an expansion interface, on which an expansion module arrangement is fitted. In the expansion module arrangement there extends at least one expansion working channel which is connected to a main working output and which is fluidically connected to the control unit at the expansion interface for connection to control valve means. The control unit further contains control electronics for electrically controlling the control valve means. Also proposed is a process control device equipped with a controller of this type.

Enlarged holes are formed at respective end portions of a valve hole housing a spool by forming an upper recessed groove and a lower recessed groove at each end portion. The respective lower recessed grooves are in communication with discharge ports. The spool includes discharge lands and discharge packing portions, which open and close discharge passages connecting an output port and the discharge ports. When the discharge land and the discharge packing portion open the discharge passage by displacing of the spool, the discharge passage and the discharge port are in communication with each other through the enlarged hole by positioning the discharge land and the discharge packing portion inside the enlarged hole.

Passage forming blocks of a first pilot valve and a second pilot valve each include a supply passage, which opens in a first surface and a second surface and is connected to a valve chamber, a first output passage, which opens in the first surface and are connected to the valve chamber, and a second output passage, which opens in the first surface. Further, the passage forming blocks each include an output passage connecting recess. The output passage connecting recess is provided in a section of the second surface that overlaps with an opening region of the first output passage, which opens in the first surface, and is connected to the second output passage. The first output passage of the first pilot valve is connected to the second output passage of the second pilot valve via the output passage connecting recess of the second pilot valve.

An electronic execution unit controls and regulates a pneumatic valve assembly for a pneumatic movement. An application for controlling and regulating a valve assembly is or can be loaded so that it can be carried out on the electronic execution unit to carry out the pneumatic movement on the pneumatic valve assembly. An electronic valve controller for the open-loop control and closed-loop control of a valve assembly has at least one pneumatic valve for a pneumatic movement task.

A control device has a plurality of modular control sections (12a-12d), which form a control block when arranged beside one another and have units of an electromagnetically actuatable actuator system and/or of a sensor system for controlling or monitoring a valve apparatus, which are connected to a central energy supply and/or monitoring device, which have individual connection parts (20a-20d) assigned to the particular control section (12a-12d), and which are connected in series and to one another. At least some of the connection parts (20a-20d) used are wirelessly in direct engagement with one another by way of their plug parts (22a-22c) and socket parts (24a-24c) that face one another and are adjacent to one another.