Programmable logic controllers provide automatic control of processes so that very little human intervention is required. Yet, this results in a well-coordinated, repetitive process.

These systems automatically start and shut down critical equipment in large and complex manufacturing processes. When in operation, programmable logic controllers ensure that all conditions are met before starting up a certain machine or process. In addition, the PLC continues monitoring the entire system using a variety of sensors.

Consequently, this ensures that everything runs as programmed. The PLC will trip if it detects a malfunction or abnormality in any of the monitored parameters.

The operating environment, size of the processes, ease of access by operators and maintenance personnel influence the choice of PLC.

A harsh environment with dust or small particles will require a PLC system with an appropriately IP rated enclosure. This prevents ingress of foreign particles into the system. The available space and layout also influence the choice. Therefore, most users require easy access for reprogramming, maintenance, or troubleshooting.

The simplest form of a PLC, all the basic components of a PLC include the I/O points, CPU, and software program. It is typically housed in a single enclosure. These PLCs are attached directly to the equipment being controlled.

Modular PLCs consists of several components on a common bus within a base unit to allow extending of the input and output. These units work on an expandable base unit. Therefore, it provides all the basic components of a PLC, i.e., a power supply, I/O points, memory and the CPU, and slots for additional cards.  These modules, which may be from the same or different manufacturers, are plugged together into a base unit.

This follows the same modular concept, but each of the modules plugs into a rack. The add-on modules are contained in racks which are then linked together through a network of connections. Since the rack mounting PLC is highly scalable, it allows very large systems to be assembled.

In energy management, the PLC monitors and controls equipment such as boiler systems. It helps the organization increase energy efficiency and safety. PLCs are also used in numerous everyday activities. They are found in factories, homes, commercial buildings, airports, unmanned car parks, and more.

Finally, some practical applications include:

In most offices, hallways, and other lower level and flat ceiling environments you will find some sort of tube lighting in place. The most common technology that is found to be used is currently fluorescent, but after this post that might slowly change for some because this alternatives to fluorescent office lighting and all of those other uses listed above is going to change your mind on which technology is the truly efficient one.

Although it is completely harmless while in the tube itself, accidents always happen. When a fluorescent tube is broken, a LED fluorescent tube alternative, you will skip this issue entirely because LED technology does not require any sort of mercury to work!

While LED technology is pretty much good to go in a greater range of temperatures, fluorescent lamps only works at it’s peak performance when it is in room temperature type environments. So LED technology is much more flexible in which temperatures it can operate properly at, fluorescents are only suitable for inside only applications. But even then, LED still wins for all of these other reasons listed on this post! And a thing to remember is that fluorescent technology isn’t better than LED is indoors, it’s just that it only works optimally at room temperatures. But when you replace fluorescent light with LED, you still get all the benefits that LED brings and they aren’t picky about the temperature at all.

When you hear the words non-directional, what exactly does that mean to you? Well, in the world of lighting it basically means that such fixture emits lights 360 degrees (or in all directions). This causes 30-40% of all the light being emitted by a fluorescent tube to be wasted due to the trait it carries of non-directional emission of light. With LED, it has directional lighting which allows you to direct the light where it needs to go and isn’t going to waste being emitted 360 degrees.

Let alone all of the other benefits that a a return on investment when you start looking at what contact us with any questions you have!

You have probably become so used to smoke alarms you rarely even notice they are in a room. That means you don’t notice when they are not around either. Or if they are working properly or placed in an appropriate place. Smoke alarms are one of those things that we ignore until we burn toast and remember we have them. Then they become an annoyance and the batteries are popped out with the intention of replacing them once the smoke has cleared out. Unfortunately, because they are so easily forgotten, they are often not replaced. An electrician in Glendale, like those at The Electric Connection, has a few facts to tell you about smoke alarms. These facts remind us why those little white discs in the corner are so important.

1-Smoke alarms need to be replaced every ten years. Most people assume they are good forever.

2-30 percent of home fires are in homes that have expired smoke alarms or no smoke alarms at all.

3-It is imperative you test your smoke alarm every month. A Glendale electrician points out it takes less than a minute to complete this potentially life-saving task.

4-Batteries should be replaced in each smoke alarm every 6 months, regardless if they are working. Fresh batteries are best.

5-Opting to go with at least one hard-wired smoke alarm on each floor is a good option. These will be installed by an electrician. Glendale homeowners can rest assured they will always have protection whether the batteries are fresh or not.

6-Every bedroom in the house should have a smoke alarm. A smoke alarm should be on each floor as well. 66 percent of homes do not have the minimum number of smoke alarms recommended.

If you would like to add another layer of protection and have hard-wired smoke alarms installed, give The Electric Connection a call today and schedule your installation.

When it comes to crime, it’s evident that there’s an appeal to darkness. Less visibility means less chance of getting caught. The 2014 National Incident-Based Reporting System (NIBRS)—an annual Uniform Crime Reporting (UCR) Program publication that’s released by the FBI—includes detailed crime data, such as time of day and type of offense. More than 18,000 law enforcement agencies participate in the UCR Program and provide data voluntarily. NIBRS’ Crimes Against Persons data shows that of the 1,093,466 incidents reported in 2014, 562,104 (51.4 percent) were between the hours of 6 p.m. and 6 a.m. Crimes Against Property data shows a lower—yet significant—39.4 percent of 3,493,904 reported incidents taking place between those same hours.

In an attempt to lessen crime and increase energy savings, many cities and businesses have started replacing traditional high-intensity discharge (HID) lights with LED bulbs, light engines, and fixtures. These actions have paid off. In 2008, Los Angeles began a project to retrofit 215,000 lights with LED lights. Since implementation of the project, color-rendering indexes (CRI) than HID fixtures. CRI refers to how accurately a light source reveals the true colors of objects, people, and surroundings. The CRI of an HID bulb can range from zero (high-pressure sodium) to about 65 (metal-halide). LED fixtures are capable of having CRIs of 75 and higher. Lights with a CRI of 80 or higher are considered to show colors most accurately and increase visibility, which is especially important for security purposes and parking lot surveillance.