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.

If you are upgrading your home’s electrical work for a renovation or remodel, then there are some truly simple ways you can elevate your new lighting to “wow” status, and now is the time to do so!

If your home is a bit on the older side, the best way to modernize is with new LED recessed lighting cans. The reason for this is simply due to the smaller nature of modern cans, which allow for a much higher ceiling than you may have. Areas like kitchens, for instance, very often have lowered ceilings to account for the room that antiquated fluorescent or recessed lighting needs to have. Today’s recessed lighting cans can fit in the space between the floor joists and the future drywall, allowing for the absolute maximum ceiling height, which immediately improves the feel of most rooms.

Do you have a dedicated entry to your home, such as a mudroom or enclosed patio? Nothing modernizes and simplifies these areas as easily as a motion-activated switch. In fact, these upgrades can be done after-market if your switch is positioned correctly using inexpensive switch replacements found at your local hardware store. The key here is that your switch has to be positioned correctly, often on the adjacent wall, which is often not the case. Otherwise, you will need to enter the room before the switch can sense your movement, which defeats the purpose in most applications. Planning for motion switches during the remodel can open up this possibility with ease.

Here is where we really get to go wild; a pressure switch may seem like a frivolity, but actually adds a great amount of value when used correctly. For instance, if there will be space between your upper kitchen cabinets and the ceiling, then adding in over-cabinet lighting creates an incredible effect; better still, piggybacking off of the circuit used for under- or over- cabinet lighting to create an interior cabinet lighting system is really not difficult to do at all. From there, simply add a pressure switch to your cabinet doors and voila, you’ve achieved a million-dollar home look for almost no extra cost if done when your other cabinet lighting circuitry is being installed. Similarly, if you’re able to reimagine your pantry with a closing door, simply put a pressure switch in the door frame that compresses when closed, turning off the light immediately, and depresses when opened to instantly turn on the light. It may not sound like much, but anyone visiting your home will be amazed by your ingenuity; plus, it takes almost no extra work to install, only requiring the switch box to be located on the corresponding portion of the wall and a small wire to snake through a drilled hole in the door frame.

The best way to achieve these and other inexpensive tricks for added value and usability is to partner with inspired electricians that are willing to make these types of suggestions. At Electrical Gurus, you’ll find the most skilled and dedicated electricians in Des Moines.

With the start of the school year and the holiday season approaching, it seems as though the mound of expenses just keep piling up. You’re budgeting for school shopping, lunches, holiday shopping and making sure your lights stay turned on. This season tends to be the most expensive for many home owners.

Luckily, we have a few ideas on how to cut back on utility bills and lower your electric bill. We also provide home inspections for everyone in the Northern Virginia area and look at ways you can utilize the most out of your electrical appliances. You may be heading into a time filled with many expenses but you can pad your pocket with money saved from lowering your utility bill. Check out these tips that will help you with your utility bills and give you peace of mind during this hectic season!

Install Dimmer Switches

When you install dimmer switches, you can use only as much light as you need. With a traditional light switch, the only settings are on and off, meaning you are either using 0% electricity or 100%. With a dimmer, you have an entire spectrum of settings in between. Being able to decrease the amount of light you use inevitably results in lower energy bills. Install dimmers in the rooms you use the most like the kitchen, living room, bathrooms, and bedrooms; this will allow you to take advantage of the greatest savings possible.

Keep Your Fridge and Freezer Full

Everyone always tells you to keep the fridge closed. But did you know that keeping your fridge and freezer full can also save money? Food acts as insulation and lessens the amount of time that the fridge has to run to stay cool. This will be easy to do with all of those lunches your family will have to pack for school and for the Thanksgiving and Christmas holidays.

Install Ceiling Fans

Keep the air circulating in your home, and your air conditioner won’t have to work as hard. Ceiling fans can help lower your electric bill by up to 30 to 40 percent. While a ceiling fan doesn’t actually decrease the temperature of a room, the draft makes the room feel cooler – allowing you to raise the thermostat and be just as comfortable. You can even use your ceiling fans in the winter months! Many people are unaware that ceiling fans can be used to circulate warm air during cooler months of the year. By running the blades clockwise, ceiling fans push warm air down from the ceiling without creating a draft.

Get Rid of “Phantom Loads”

A shocking 75 percent of the energy used by home electronics is consumed when they’re turned off. These “phantom” users include: televisions, videogame consoles, stereos, computers and many kitchen appliances—basically anything that holds a time or other settings. A simple solution? Plug all of these items into power strips; then, get in the habit of turning off the strips between uses.  This will cut back on utility bills and will help combat overloading fuses.

Switch to LEDs

LED light bulbs use 90 percent less energy than incandescent bulbs. Switch out the most widely used bulbs in your home. Then, replace the rest as they burn out. LED lights tend to last much longer than traditional bulbs so you won’t have to replace them as often – saving you money.

You might be tempted to repair your wires on your own, but it is much safer to obtain our electrical wiring repair services. Wiring repair is not only complicated but can be dangerous for those without the proper tools, experience and training. Our electricians have all three of these things. We will take care of your wiring repair needs for a reasonable price, and you can rest easy knowing that your electricity is in good hands.