What are the RSLogix 5000 Software Components?

I: RSLogix 5000 Programming Software. Tip: Because all Logix5000 platforms have All ControLogix, FlexLogix, and CompactLogix PLC types used common control engine, RSLogix 5000 software is used to program and configure all Logix5000 systems. Used to perform the following tasks: • Develop and modify code – (e.g., ladder logic, function block diagrams, Structured Text etc.) • Monitor project and system component operation during operation • Configure hardware modules (communication module, I/O module, etc..) II. RSLogix 5000 Software Advantage. RSLogix 5000 software offers the following benefits: • Flexible, easy-to-use, Windows®-based editors and components • I/O configuration wizards • Ability to copy […]

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Simple Series Circuits

Let’s start with a series circuit consisting of three resistors and a single battery: The first principle to understand about series circuits is that the amount of current is the same through any component in the circuit. This is because there is only one path for electrons to flow in a series circuit, and because free electrons flow through conductors like marbles in a tube, the rate of flow (marble speed) at any point in the circuit (tube) at any specific point in time must be equal. From the way that the 9 volt battery is arranged, we can tell […]

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NPN vs PNP sensors

How to wire PNP and NPN sensors? What’s the difference and why should anyone care? If you’re confused by the terms PNP and NPN, then hopefully this post will shed some light on the differences between the two.  In the context of this post, they refer to the construction of a sensor’s transistor and whether it has a p-type or n-type semiconductor. The “N” stands for “Negative” and the “P” stands for “Positive”.  With respect to sensors, an NPN device is one that can switch the negative side of the circuit while a PNP device switches the positive side. The […]

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Capacitors

A capacitor is a two-terminal, electrical component. Along with resistors and inductors, they are one of the most fundamental passive components we use. You would have to look very hard to find a circuit which didn’t have a capacitor in it. What makes capacitors special is their ability to store energy; they’re like a fully charged electric battery. Caps, as we usually refer to them, have all sorts of critical applications in circuits. Common applications include local energy storage, voltage spike suppression, and complex signal filtering. Circuit Symbols There are two common ways to draw a capacitor in a schematic. […]

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How to use a Multimeter?

Using a Multimeter A multimeter is used to make various electrical measurements, such as AC and DC voltage, AC and DC current, and resistance. It is called a multimeter because it combines the functions of a voltmeter, ammeter, and ohmmeter. Multimeters may also have other functions, such as diode and continuity tests. The descriptions and pictures that follow are specific to the Fluke 73 Series III Multimeter, but other multimeters are similar. Important note: The most common mistake when using a multimeter is not switching the test leads when switching between current sensing and any other type of sensing (voltage, […]

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Testing a PNP or NPN sensor

How to Test Whether a Sensor has a PNP or NPN Type Output Using a Multi meter? If you are replacing a 3 wire sensor which operates on DC voltage, it is important to know whether the sensor’s output is a PNP or NPN type. Often this information is printed on the sensor itself, but it is not uncommon for it to be scratched off over a long period of time. Set the multi meter to DC voltage. This is indicated by either the letters “VDC” or “DCV” or by a symbol which looks like 3 dashed lines over a […]

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What is the difference between PNP and NPN when describing 3 wire connection of a sensor?

Most industrial proximity sensors  (inductive, capacitive, ultrasonic and photo electric) are solid state. The term solid state refers to the type of components used within the sensor. Solid state electronic components such as transistors are used to switch the output of the sensor upon detection of an object. Two specific types of 3 wire sensors are available; PNP and NPN. The difference is a result of the internal circuit design and type of transistors used. A key point to observe is that PNP and NPN has nothing to do with whether the sensor is normally open (N/O) or normally closed (N/C), i.e. a PNP sensor may be either N/O […]

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Diodes

Introduction Once you graduate from the simple, passive components that are resistors, capacitors, and inductors, it’s time to step on up to the wonderful world of semiconductors. One of the most widely used semiconductor components is the diode. In this tutorial we’ll cover: What is a diode!? Theory of diode operation Important diode properties Different types of diodes What diodes look like Typical diode applications Suggested Reading Some of the concepts in this tutorial build on previous electronics knowledge. Before jumping into this tutorial consider reading (at least skimming) these first: What is Electricity Voltage, Current, Resistance, and Ohm’s Law […]

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Resistors

Resistors, ( R ) are the most fundamental and commonly used of all the electronic components, to the point where they are almost taken for granted. There are many different Types of Resistor available for the electronics constructor to choose from, from very small surface mount chip resistors up to large wirewound power resistors. The principal job of a resistor within an electrical or electronic circuit is to “resist” (hence the nameResistor), regulate or to set the flow of electrons (current) through them by using the type of conductive material from which they are composed. Resistors can also be connected […]

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Transistors

Transistors can be regarded as a type of switch, as can many electronic components. They are used in a variety of circuits and you will find that it is rare that a circuit built in a school Technology Department does not contain at least one transistor. They are central to electronics and there are two main types; NPN and PNP. Most circuits tend to use NPN. There are hundreds of transistors which work at different voltages but all of them fall into these two categories. Transistors are manufactured in different shapes but they have three leads (legs). The BASE – […]

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