摘要:
A diagnostic device is physically coupled to a control device in a process control system, and includes an accelerometer that determines when a motion or vibration of the control device is greater than a predetermined threshold. When this condition is detected, one or more other components of the diagnostic device (e.g., processor, communication module, etc.) are activated, and a distress signal is transmitted from the diagnostic device using the activated components. Consequently, the duty cycles of components of the diagnostic device are decreased and optimized, leading to significant power savings. Indeed, in some embodiments, energy harvesting may be sufficient to power the diagnostic device. Further, in some embodiments, the diagnostic device may not require a component processor.
摘要:
A positioner includes: a displacement amount detector that outputs a pair of detection signals; a multi-layered board that propagates a pair of detection signals; a circuit board on which an electronic circuit generating a control signal for controlling a valve opening of the regulating valve, on the basis of the pair of detection signals is formed; and a housing that accommodates at least the multi-layered board and the circuit board. The multi-layered board includes a first interconnection layer having a first interconnection pattern formed therein, and a second interconnection layer that has a pair of signal interconnections formed therein and is disposed on the first interconnection layer through an interlayer insulation film. The first interconnection pattern is electrically connected to the housing and is formed so as to overlap the pair of signal interconnections formed in the second interconnection layer.
摘要:
A remotely activatable valve unit having: an inlet port; an exit port; an electronically activatable valve configured and arranged between the inlet port and the exit port; a receiver having an output; and a controller configured to operate the valve as a function of the receiver output. The exit port may be configured to attach to a vacuum means or to a wall vacuum.
摘要:
A process control system includes at least one controller and at least one wireless valve element capable of being controlled by the at least one controller. The process control system also includes a first transceiver configured to communicate with the at least one wireless valve element and a second transceiver configured to communicate wirelessly with the first transceiver. The second transceiver is further configured to communicate with the at least one controller.
摘要:
A process control system includes at least one controller and at least one wireless valve element capable of being controlled by the at least one controller. The process control system also includes a first transceiver configured to communicate with the at least one wireless valve element and a second transceiver configured to communicate wirelessly with the first transceiver. The second transceiver is further configured to communicate with the at least one controller.
摘要:
The invention relates to a control module arrangement (20) for a compressed air maintenance unit (14) constructed like a battery and a compressed air maintenance unit (14), which has several maintenance modules (23-25) in a row one after the other, such as, e.g., pressure regulators, filters, oilers, or the like, wherein the control module arrangement has a bus communications means for communicating with the maintenance modules (23-25) via an internal bus (37) of the maintenance unit. The control module arrangement has a diagnostic means (53) for communicating with an input/output device (40) of the maintenance unit (14), wherein the input/output device has a connection means (43) for connecting at least one diagnostic sensor (44-46) separate from the maintenance unit and/or at least one pneumatic compressed air influencing actuator (47) separate from the maintenance unit, wherein the control module arrangement can control the one or more compressed air influencing actuators via the input/output device and/or can receive diagnostic messages (48) from the one or more separate diagnostic sensors. The diagnostic means are constructed for generating diagnostic data (51) for a higher-order diagnostic device (18) for diagnosing at least one function of the compressed air maintenance unit with reference to diagnostic messages (48) of the one or more separate diagnostic sensors and/or the maintenance modules, so that the compressed air maintenance unit forms a diagnostic node.
摘要:
An method and apparatus for programming the parameters of an adjustable or programmable device such as a valve amplifier, wherein the adapter disconnects an input on the amplifier from a valve controller and reconnects the input to a programming apparatus, such as a microcontroller or a computer for example, to modify the amplifier parameters. Accordingly, the valve amplifier need not include a separate connection for connecting to a programming apparatus, thereby decreasing its cost and the risk of contamination. A first connector on the adapter is adapted to mate with a connector to a controller, a power supply, and a controlled mechanism, such as a valve. A second connector on the adapter is adapted to mate with a connector on the amplifier. A third connector on the adapter can mate with a serial computer connector, and a computer can program the parameters. Alternatively, the adapter can include a microcontroller to conduct the programming of the amplifier parameters. Input keys, indicators, and a display can be provided on the adapter to work in conjunction with the microcontroller in conducting the programming. A switch on the adapter can switch between a run mode, wherein the amplifier input is connected to the valve controller for normal control of the valve, to a program mode, wherein the amplifier input is connected to the programming apparatus for modifying of the amplifier parameters. The amplifier is programmed to detect when the adapter is in programming mode. For example, the adapter can reduce the amplitude of the power supplied to the amplifier, and the amplifier can detect this reduced power signal and prepare to communicate with the programming apparatus. To achieve this power signal reduction, the switch on the adapter, when switched to program mode, connects the power signal to power reduction circuitry which feeds a reduced power signal to the amplifier.
摘要:
A method and device for directing and controlling the operation of an injection molding machine having sensors which provide actual values during machine operation, the machine having actuators forming and executing control orders received from the sensors. The sensors and actuators are serially connected via a closed loop control cable such that all information is available in successive words. The sensors and/or actuators deliver their information jointly and in dependence on the status of the program. The actuators jointly execute their control orders in corresponding numbers. The actuators and sensors are coupled through interface couplers to the closed loop or stub cable.
摘要:
A system and method access field device information in an industrial process control and automation system. The system includes a memory element configured to store a plurality of device data associated with a plurality of field devices operating at a pipeline. The system also includes at least one processor configured to communicate with one or more transmitters coupled to the plurality of field devices. The at least one processor is also configured to retrieve, from each of the one or more transmitters, the plurality of device data related to each of the plurality of field devices. The at least one processor is also configured to send a command to a field device of the plurality of field devices based on the plurality of device data.
摘要:
A machine control system, comprises at least first and second nodes of a wireless network in communication with each other, each node including a three axis accelerometer having a data output coupled to a respective sensor input of the node; and a hydraulic machine having a manifold and a plurality of hydraulic mechanisms coupled to respective outputs of the manifold, the manifold being responsive to electrical actuating signals provided from respective electrical outputs of the first node in response to gesture signals sent from the second node.