A Programmable Logic Controller (PLC) receives information from one or more inputs. This semiconductor control device processes the information based on a software program. Finally, it sends an output control signal. The microprocessor based control system performs functions such as timing, logic, sequencing and others. The PLC follows instructions from an operator-defined program.

These intelligent systems provide reliable, high-speed monitoring and control of processes in automated applications. In addition, they are easy to program and configure.

Once the program updates the output, the CPU starts over and the cycle repeats again. The cycle depends on the number of inputs, outputs, and size of the program, while the action will depend on the inputs coming from a variety of sensors.

The input sensors include components such as switches, proximity sensors, photoelectric sensors, pressure switches, level switches, encoders and temperature sensors, while the output devices include actuators, relays, switches, and many more.

PLCs rely on software programs that help them in making the necessary decisions. The PLCs are programmed through a variety of tools, which may differ in ease of use, appearance, and complexity. The most commonly used PLC programming language is Ladder Logic, a graphical software that uses common electrical symbols. Other languages include Function Block Diagram (FBD), Sequential Function Chart (SFC) and Structured Text (ST).

The programming is done on the device such as a computer or handheld device after which it is transferred to the PLC memory using a communication interface.

Selecting a suitable PLC that will address your current and future needs can be a challenge, especially with the large number of different PLCs on the market today. The available PLCs have varying capabilities, physical sizes, complexity, cost, power requirements, scalability and other parameters. Therefore, it is necessary to determine the correct programmable logic controller for your specific application. Special systems can be designed for use in harsh environments.

The Programmable Logic Controller has revolutionized and simplified controls in automation and industrial applications. PLCs are easy to install, wire, program and modify to suit changing application requirements. These control systems are usually available in a wide range of sizes that ensure finding exactly what you need for any application.

More than 47,000 house fires in the U.S. are caused by faulty electrical work and wiring each year. Modern living has placed many more demands on the average home’s electrical system than were ever imagined just a few short decades ago. Computer systems, gaming systems, large appliances, and smart systems all draw a lot of electricity and can easily overload a circuit that wasn’t designed for that kind of demand. However, increased electrical demand is just one of several reasons to update your home’s electrical system.

1. Your home is more than 30 years old. Your home doesn’t have to be a century home to have outdated wiring. If it was built before 1985, it’s a good idea to have your old electrical wiring evaluated by a licensed electrical contractor.

2. You frequently trip the breaker or blow the fuse. If you frequently have to reset the circuit breakers in your main electrical control box or replace the fuses, it’s likely a sign that at least one of your electrical circuits cannot handle the demand for power.

3. You need extension cords. If you need extension cords to plug in a desk lamp or (worse) your electronics, you probably don’t have enough wall outlets in your rooms. Older homes often only have one or two outlets per room, less than is needed by most households.

4. Your lights dim or flicker when an appliance turns on. If the lights in your room dim when the furnace kicks in or the refrigerator cycles, this can also be a sign that your old electrical wiring may not be able to safely power your home.

5. Your outlets are discolored. Discolored outlets can also be an indication of unsafe surges in power.

Leaving old electrical wiring in place can be dangerous for you and your family. If you have encountered any of the above situations, it’s a good idea to have an experienced electrical contractor evaluate your home’s wiring.

Kolb Electric has been helping Maryland, Virginia, and Washington, DC homeowners with all their electrical needs for 90+ years. We have a full staff of licensed electricians with experience on major projects like home rewiring.

Call us at 877 287-1179 to schedule an appointment today.

Dimmer switches block varying amounts of electrical current from flowing into your lights. Not only does this save energy, it can also help extend the life of your lights! The amount of energy saved is, of course, not guaranteed, and savings may vary  depending on factors such as how much you dim the lights, how long they are dimmed, and which types of bulbs you choose. Ultimately, this means that you get to save money on your energy bills.

If you can’t install dimmer switches in every room, try to install them where you can get the most bang for your buck – typically in master bedrooms, kitchens, dining rooms, hallways, and living rooms.

Call us or contact us online to learn more about the savings opportunity offered by dimmer switches.

Whether you want to watch a movie in the family room or host a dinner in the dining room, dimmer switches can enhance the atmosphere and set the mood. By dimming the lights, you can create a romantic or cozy setting. Also, if you have young children or guests over who aren’t familiar with your home, dimming the lights at night allows them to find their way around.

A dimmer will make light bulbs last longer—the softer the light, the longer the bulb lasts. You can add between three and four years to a bulb’s life with proper dimming.

If you want to install dimmer switches in Maryland, Virginia, or Washington, DC, call Kolb Electric! We’ve been serving the MD, VA, and DC area since 1925. You can count on our experienced electricians to get the job done right the first time.

Being able to run a successful small business takes an exceptional amount of hard work and know-how, but even then you are not guaranteed to make a profit. While talent and dedication to your craft are major pieces to the formula of success, sometimes you simply need an outside perspective to gain the ability to see the whole picture of what could make or break your Des Moines business. For example, consider a local bakery. While it takes expert levels of knowledge to bake an excellent bread and to create the types of cakes and pastries that keep customers returning to your store, your bakery could benefit greatly from a visit by the local electricians at Electrical Gurus. Not only do we offer the electrical maintenance services that can keep every business up and running, but we also can assist your business by creating specialty lighting to enhance your storefront and bring in even more customers.

The speciality lighting services offered by the electrical contractors at Electrical Gurus have a vast number of benefits for a local business such as a bakery. While our professional staff can obviously handle the electrical installation, our designers can create specialty lighting that highlights not only the exterior of your bakery but also improves the interior. From creating lighting for display cases that showcase your delicious cupcakes and French breads to vibrant menus and shop signs that attract business, our specialty lighting electrical service will certainly improve the way customers see your business.

If you are looking for ways to improve your local Des Moines business, call the commercial electricians at Electrical Gurus today for expert specialty lighting design that will make your business truly shine!