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:

The alfresco areas on your property may be open-to-the-sky, semi-enclosed or entirely covered. These spaces add to the expanse and functionality of the indoor spaces and make your yard more functional. Having an outdoor feature like a patio or deck is a great way to make optimum use of the outdoor areas on your property.

But you also need to have the right type of lighting systems installed, if you want to use these areas optimally after dark as well. When you are getting your patio designed and installed, it’s a good idea to get the outdoor lighting planned and installed as well.

A skilled and experienced electrician will be able to provide ideas and designs on the type of lighting installations that can be added to your yard spaces. When you have well-illuminated outdoor areas on your property, you are more encouraged to use them and it adds to the safety of your home as well. Here are some tips to light up your patio and garden spaces:

The right type of lighting can have a significant impact on the way the spaces look. Even the most well-designed and well-installed patios and landscapes can look lack-lustre and drab if they aren’t illuminated well. Outdoor lighting is about getting the mood and ambience right. A skilled electrician would be able to advice you on which types of fittings and fixtures, colours, placement and sizes will complement the look of your home and the landscaping. There are a number of different types of light fixtures that can be installed on your patio, such as:

As you can see, there are a number of different types of lighting that can be added to the patio and garden space to add to their functionality and aesthetics and create the right mood and ambience.

Electrical safety testing is an important part of any Electrician’s job. It should be done periodically—by a professional and to a very high standard.

An Electrician will undertake an inspection to ensure there are no deficiencies in an electrical installation. Over time, an electrical product will deteriorate. Age, wear and tear, environmental factors, poor maintenance, and improper use can all cause electrical products to malfunction and stop working. When this happens, it is the Electrician’s responsibility to ensure the product is repaired as soon as possible. If this is not possible, then the product should be not be used. Faulty electrical products are very dangerous and can cause injury or death if not handled with care.

Maintaining Safety at All Times

A periodic inspection of all portable electrical appliances will reduce the risk of them malfunctioning in the future. An inspection is an ideal opportunity to check for any signs of electrical equipment being overloaded, to locate any potential electrical shock risks, and to highlight any defective work. It should only ever be done by professionals who understand what they are doing.

Although portable appliance testing is not compulsory for companies within the United States, those that have periodic inspections find it brings them peace of mind. Appliance testing is done in many military and science installations in throughout the country.