摘要:
A method for configuring hardware modules in an automation system includes the steps opening or creating a project in a project configuration software package, opening or generating, in the project, where a station has a number of slots, opening a hardware catalog that includes a plurality of hardware module master data records, inserting at least one hardware module master data record for a hardware module from the hardware catalog (into the station, wherein a customization step is performed for the at least one hardware module master data record, where at least one environmental parameter is specified which represents the ambient conditions at the deployment location of the at least one hardware module, and saving the station having the at least one hardware module master data record inserted into the station and with its at least one environmental parameter.
摘要:
A programmable controller is provided that is capable of interfacing with a remote master controller, where the programmable controller is capable of controlling an input current to at least one load that is proximate the programmable controller. The programmable controller includes at least one solid-state switch capable of controllably altering the input current to the loads. The programmable controller also includes at least one measuring element for measuring at least one parameter associated with the loads and the solid-state switches, such as the current through the solid-state switches, the current through and voltage drop across the loads and/or the temperature at or around the solid-state switches. Additionally, the programmable controller includes a processing element capable of controlling the solid-state switches, such as by controlling the current through the solid-state switches to the loads.
摘要:
An interface connector device for interconnecting a plurality of input/output devices including a signal bus connected to a control and to the input/output devices for multiplexing the signals between the control and the input and output devices, the bus interconnecting a plurality of interface and connector devices, and each of the interface and connector devices including address recognition circuitry as well as programmable configuration selection logic to configure the connector device to respond to a variety of input/output devices. In addition, the signal bus and connector devices are adapted to recognize and convey various levels of signals, for example, different voltage levels representing control information, framing signals, and diagnostic command signals.
摘要:
In one embodiment, a method includes initiating a protection mode at a network device having a protective cover installed to filter airflow entering a network device, reducing one or more of a fan speed, processing functions, or power at the network device, exiting the protection mode upon removal of the protective cover from the network device, and increasing one or more of the fan speed, the processing functions, or the power to resume normal operation at the network device.
摘要:
A personal electronic device can include a main printed circuit board having disposed thereon a processing unit, one or more auxiliary circuits coupled to the main printed circuit board by one or more corresponding flexible printed circuits and one or more temperature sensors disposed on one of the flexible printed circuits. A processing unit of the portable electronic device can be configured to monitor the one or more temperature sensors, provide a warning in response to a monitored temperature exceeding a first threshold, and to cause a shutdown of at least a portion of the personal electronic device in response to the monitored temperature exceeding a second threshold. The temperature sensors can be negative temperature coefficient resistors.
摘要:
A control method includes calculating a switching temperature indicating a maximum outside air temperature at which a temperature of the unknown electronic component attached within an enclosure does not exceed the operation-guaranteed temperature, based on a temperature of an electronic component for which a relationship between power consumption and a temperature of the electronic component is already known, the temperature of the electronic component corresponding to maximum power consumption of an electronic component for which a relationship between power consumption and the temperature of the electronic component is unknown, and on an operation-guaranteed temperature of the unknown electronic component; and setting the number of revolutions of a fan to a value for suppressing the temperature of the unknown electronic component to a level less than or equal to the operation-guaranteed temperature, when an outside air temperature exceeds the switching temperature during attachment of the unknown electronic component within the enclosure.
摘要:
A field device, comprising a sensor, and a control/evaluation unit. The control/evaluation unit is implemented on an application-specific integrated circuit—an ASIC—which, in at least a first section and in a second section, is embodied as a dynamically reconfigurable logic chip. In each of the two sections, in each case, a measuring path composed of a plurality of function modules can be configured; wherein the individual sections are spaced apart from one another in such a manner, that a temperature and/or a voltage change in one of the sections has no influence on the other section or the other sections. The control/evaluation unit partially dynamically reconfigures the function modules in the measuring paths as a function of the particular defined safety-critical application, so that the field device fulfills the required safety standard.
摘要:
The invention relates to a method for temperature management in a network (1) with ring topology, wherein control devices (2) exchange data via the network (1) by means of transmitting/receiving units. The object of the present invention is to find a method and a data bus system which increases the fail safety of a network (1) with ring topology. For this purpose, the temperature near to the transmitting/measuring unit of at least one control device (2) is measured. As soon as the temperature at the transmitting/receiving unit (2) of the control device exceeds a predefined critical temperature Tkrit, the transmitting/receiving unit is switched off and wakeup requests put onto the network (1) by the control devices (2) are blocked.
摘要:
The invention relates to a method for temperature management in a network (1) with ring topology, wherein control devices (2) exchange data via the network (1) by means of transmitting/receiving units. The object of the present invention is to find a method and a data bus system which increases the fail safety of a network (1) with ring topology. For this purpose, the temperature near to the transmitting/measuring unit of at least one control device (2) is measured. As soon as the temperature at the transmitting/receiving unit (2) of the control device exceeds a predefined critical temperature Tkrit, the transmitting/receiving unit is switched off and wakeup requests put onto the network (1) by the control devices (2) are blocked.
摘要:
A method for reducing thermal dissipation in a single PLC package includes implementing a pulse width modulated current regulator including a field effect transistor (FET) switch, and utilizing a turn on delay of the FET to provide a wide operating range of current. The FET has an inherent turn-on time delay that can be exploited such that, as the duty cycle is reduced, the FET's drain to source impedance dominates an inductive path of an output filter and increases output filtering.