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What is an FPGA?

Posted: 24 September 2007

FPGA stands for “field programmable gate array”, which is an integrated circuit containing a large number of “logic blocks” which the user can program (and in most cases re-program) to provide the fun....... More >

Picking the Right PLC Programming Language

Posted: 10 September 2007

Which language should you choose for use with your programmable controller? Among the five languages defined in IEC 61131-3, ladder diagrams or ladder logic is generally the most widely applied in Nor....... More >

Factors Affecting Network Bandwidth

Posted: 1 September 2007

Bandwidth is defined as the carrying capacity of a circuit. It's usually measured in bits per second for digital circuits, or in hertz for analog circuits. Though a hardwired network is also limit....... More >

Stepper Motors: An 8-Point Guide

Posted: 25 August 2007

A stepper motor based system provides a simple, low-cost method of motion control. However, successful use stepper motion control is highly application dependent. Here are eight general points of appl....... More >

Ten Common Mistakes in Automation Purchasing

Posted: 20 August 2007

Buying automation equipment can be a complex process. Experience gained from common purchasing mistakes can serve as a useful guide: 1. No equipment specification Failure to define your co....... More >

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Selecting a Pneumatic Valve

Posted: 6 August 2007

Valves are at the heart of pneumatic control systems, with directional and proportional control valve varieties serving as major choices. Directional control valves (DCVs) are arguably t....... More >

Using Safety Integrity Levels - Part 2

Posted: 30 July 2007

Applying the safety integrity level (SIL) concept has been ongoing in process industries but is relatively new in production automation. SIL ratings (1, 2, 3, and 4) use the probability of a dangerous....... More >

Using Safety Integrity Levels - Part 1

Posted: 21 July 2007

Applying the SIL (safety integrity level) concept has been ongoing in process industries but is relatively new in production automaton. It offers different, perhaps more flexible, means of assessing r....... More >

Ten Reasons to Use Adjustable-Speed AC Drives

Posted: 16 July 2007

Modern AC adjustable-speed drives (ASDs) have come a long way in their own right and as an alternative solution to dc drives. There are many reasons for using ASDs - here's a summary of their benefits....... More >

Troubleshooting RS-485 Networks

Posted: 9 July 2007

RS-485 technology remains a mainstay of myriad communication networks. Here's an eight-step recipe for checking common failures and making troublesome RS-485 networks work. 1. RS-485 uses an unbala....... More >

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