Skills or Topics to master to be a Good Industrial Automation Engineer
Engineering is not just about building machines and structures. It's about understanding how things work and using that knowledge to design and improve systems. Industrial automation is a field of engineering that deals with the design and implementation of systems that automate industrial processes. As an engineer, if you want to master the skills of industrial automation, you need to know a few things. Here are some topics that you should be familiar with: - PLCs and Ladder Logic: Programmable logic controllers (PLCs) are used in industrial automation to control machine processes. They use a type of programming called ladder logic, which is a graphical way of representing Boolean logic. If you want to be good at industrial automation, you need to understand how PLCs work and how to program them using ladder logic. - HMI and SCADA: Human-machine interfaces (HMIs) and supervisory control and data acquisition (SCADA) systems are used to monitor and control industrial processes.
PLCs and Ladder Logic
PLCs are used extensively in industrial and commercial applications, where programming is often completed by non-engineers or those not familiar with ladder logic. PLCs have the advantage of being able to process a variety of input/output types (analog, digital, etc.),as well as provide limited decision-making ability (i.e., logical operations). They are commonly used to control manufacturing processes, such as assembly lines and conveyor systems, as well as provide the ability to interface with other equipment in the facility (i.e., programmable controllers can be daisy-chained together). Ladder logic is a graphical programming language that uses a set of symbols to represent Ladder diagrams were originally developed to represent relay logic networks. These diagrams were designed so that electrical engineers could more easily visualize and understand the operation of relay-based circuits. Over time, engineers began using ladder diagrams to control programmable logic controllers (PLCs),which led to the development of ladder logic as a programming language. Ladder logic is based on Boolean logic, which means that it can only represent two states: on and off. In ladder diagram form, these states are represented by the symbols shown in Figure 1. When a symbol is "on" or "true," it is represented by a continuous line; when it is "off" or "false," it is represented by an interrupted line.
SCADA and HMI
Supervisory control and data acquisition (SCADA) systems and human-machine interfaces (HMIs) are two key technologies in industrial automation. SCADA systems are used to monitor and control industrial processes, while HMIs provide a graphical interface for interacting with those processes. In this article, we'll take a closer look at SCADA and HMI technology, exploring their key features and differences. SCADA systems are used to collect data from various sensors and devices in an industrial environment, then use that data to control equipment and processes. SCADA systems typically include three main components: -A central controller unit for storing data and running algorithms -Remote terminal units (RTUs) for collecting data from field devices -Human machine interfaces (HMIs) for displaying process information to operators RTUs are often connected to field devices via networks such as Modbus or Profinet. HMIs can be connected to the central controller unit via Ethernet or wireless protocols such as WiFi. One key difference between SCADA and HMI systems is that SCADA systems are designed to work with a variety of different protocols, while HMIs are usually designed to work with a specific protocol. For example, an HMI might be designed to work with Modbus RTU devices, while a SCADA system would be able to work with Modbus RTU, Modbus TCP/IP, Profinet, etc. another key difference is that SCADA systems are more focused on monitoring and collecting data, while HMIs are more focused on providing information to operators. This means that HMIs typically have more graphics and visualizations than SCADA systems. Both SCADA and HMI systems play important roles in industrial automation, but it's important to understand the differences between them before choosing a system for your facility.
VFDs and Motor Control
An Engineer must have a complete understanding of VFDs (Variable Frequency Drives) and motor control in order to have a complete understanding of industrial automation. VFDs are devices that change the speed of an AC motor by changing the frequency of the power that is supplied to the motor. This can be done either manually or automatically. Motor control is the process of controlling the speed, direction, and torque of an AC motor. This can be done either manually or automatically.
Sensors and Transducers
Sensors and transducers are the two main types of devices used to measure process variables. Sensors are used to measure variables such as temperature, pressure, level, and flow. Transducers are used to convert one form of energy into another form of energy. Some of the most common types of sensors used in industrial automation applications include: -Thermocouples -RTDs -Thermistors -Pressure sensors -Flow sensors -Level sensors Some of the most common types of transducers used in industrial automation applications include: -Transmitters -Converters -Signal conditioners
Pneumatics and Hydraulics
Pneumatics and hydraulics are two types of technologies that are used in industrial automation. Pneumatics uses compressed air to power machines, while hydraulics uses fluid power. Both technologies have their own advantages and disadvantages, and both are essential for any engineer who wants to master the skills of industrial automation.
Electrical Theory
A large part of industrial automation training is dedicated to electrical theory. This is essential for two reasons. The first is that a large portion of machines and automated equipment are powered by electricity. The second reason is that many of the sensors and control devices used in industrial automation rely on electrical signals to function properly. As such, it is important for engineers to have a strong understanding of electrical theory before they can be expected to effectively design or troubleshoot industrial automation systems. Some of the key topics that should be covered in any comprehensive electrical theory training program include: -Basic Electricity concepts ( volts, amps, watts, etc.) -How electricity is generated and distributed -How to read and interpret electrical schematics -Ohm's law and its applications -Series and parallel circuits -AC vs DC power -Magnetism and electromagnetic principles -Transformers and passives components
Motors and Generators
Electric motors and generators are devices that use electromagnetism to convert electrical energy into mechanical energy, or vice versa. They are essential components in a wide variety of industrial and consumer applications, including air conditioning and heating systems, automotive systems, pumps and compressors, machinery controls, power tools, and hand-held electric razors. There are three main types of electric motors: AC (alternating current) motors, DC (direct current) motors, and universal motors. AC motors are the most common type of motor used in industrial applications. They usually have two or more poles (magnetic North and South poles that interact with each other to create rotational force),and they rotate at a constant speed. DC motors also have two or more poles, but the magnetic fields are generated by DC current instead of AC current. Universal motors can run on either AC or DC power. Generators are devices that convert mechanical energy into electrical energy. The most common type of generator used in industrial applications is the alternator, which uses rotating coils of wire to generate an alternating current (AC).
Process Control
In process control, a "process" is any activity that takes an input, does something to it, and produces an output. The input and output can be things like fluids (liquid or gas),electricity, mechanical motion, light, heat, or sound. The "something" that the process does to the input can be pretty much anything you can think of: measuring it, moving it, filtering it, heating it up or cooling it down, compressing it or decompressing it, etc. And of course the output of one process can be the input to another process. For example, the output of a pressure sensor might be an electrical signal that goes to a controller. The controller might use that signal to adjust the flow of fluid through a valve. So as you can see, process control is a very broadly defined term. It can apply to any time you need to automatically control some process in order to achieve some goal.
Instrumentation
Instrumentation is the branch of engineering that deals with the design, construction, and operation of systems for measuring physical quantities such as length, mass, temperature, flow rate, and other variables. Instrumentation engineers develop new ways to measure physical phenomena and design and build instruments that can be used to observe and record the behavior of these phenomena. Instrumentation engineers work in a variety of industries, including manufacturing, healthcare, energy, aerospace, and automotive. They may work in research and development, product development, or production. In some cases, they may also be involved in sales and marketing or customer service.
Project Management
Project management is the process of planning, executing, and monitoring a project to ensure its successful completion. Engineers must be familiar with project management principles in order to effectively plan and execute industrial automation projects. There are a number of different project management methodologies that can be used to manage an industrial automation project. The most popular project management methodology is theProject Management Body of Knowledge (PMBOK). Other popular methodologies include Six Sigma and Lean. Engineers should also be familiar with the various tools and techniques that are used in project management. These tools and techniques can be used to help plan, execute, and monitor a project. Some of the most popular tools and techniques include Gantt charts, milestone charts, earned value analysis, and critical path analysis.