The Parallel Port is the most commonly used port for interfacing home made projects. This port will allow the input of up to 9 bits or the output of 12 bits at any one given time, thus requiring minimal external circuitry to implement many simpler tasks. The port is composed of 4 control lines, 5 status lines and 8 data lines. It's found commonly on the back of your PC as a D-Type 25 Pin female connector. There may also be a D-Type 25 pin male connector. This will be a serial RS-232 port and thus, is a totally incompatible port. Parallel Port’s are standardized under the IEEE 1284 standard fi
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Pressure Valves
Valves are essential elements for controlling fluid system performance. Virtually every fluid-power system requires some type of valve. In a hydraulic system, valves may control pressure, flow to an actuator, or quantity of flow permitted past a given point. Pneumatic valves are similar in design and operation to their hydraulic counterparts, although they may differ in construction.Trends in the valve industry today include miniaturization of traditional designs and space-saving stackable valves. Compatibility with electronic controls means enhanced valve performance. Manufacturers are also
Pneumatic Pressure Regulators
Pressure regulators, commonly called pressure-reducing valves, maintain constant output pressure in compressed-air systems regardless of variations in input pressure or output flow. Regulators are a special class of valve containing integral loading, sensing, actuating, and control components. Available in many configurations, they can be broadly classified as general purpose, special purpose, or precision.General-purpose or utility regulators have flow and regulation characteristics that meet the requirements of most industrial compressed-air applications. Such regulators provide long servi
Fluid Transfer Valves
Fluid-handling devices are not basically concerned with the modulation of power, but only with the movement of fluid. Choosing a fluid-handling valve used to be easy, because each one had its own area of utility. For on-off, full, or no-flow requirements, ball and gate valves were favored; where tight shutoff was not required, butterfly and slide valves were used. As a result, beliefs were formed which may inhibit the selection of the best valve for a job. Globe valves are used for throttling purposes and where positive shutoff is required, in sizes up to 6 in. Globe valves have a replaceable
What is Industrial Ethernet?
The Ethernet network is a local-area network (LAN) protocol developed by Xerox Corporation in cooperation with DEC and Intel in 1976. Ethernet uses a bus or star topology, and supports data transfer rates of 10 Mbps (standard) or 100 Mbps (using the newer 100Base-T version).The Ethernet specification served as the basis for the IEEE 802.3 standard, which specifies the physical and lower software layers. Ethernet uses the CSMA/CD access method to handle simultaneous demands. It is one of the most widely implemented LAN standards. OSI Reference ModelDeveloped by International Standards Organi