Using a Siemens PLC to Control Your Home

Do you remember those futuristic films where the protagonist uses a wireless scanner to open the front door, walks in and tells the lights to go on and the music to play? Well, as in so many cases, science fiction has now become science fact. Smart Homes are no longer the subject of fantasy, but big business and a vital part of the IoT (Internet of Things). Alexa not only plays your favourite tunes, but can control the lighting, heating and security cameras around your home. If you want to, you can programme in your daily routines to give you an alarm call, broadcast weather and traffic reports, open the curtains, turn on selected lights and even switch on the coffee pot. All you need is a smart phone and the right app, and the home of the future can be yours.


With the ever-increasing popularity of the Smart Home, lighting manufacturers are recognising the potential for incorporating the new technologies into light bulbs, lamps, LED strips, garden lights and more. On/Off switching, brightness, sequencing and colour combinations can all be remotely controlled, together with outdoor and security light systems for the garden or driveway.


Automatic opening and closing of blinds and curtains is simple when using a Siemens PLC such as LOGO! Precise positioning can be programmed via your smartphone app or voice command, so that you can wake up to the gentle increase of natural daylight, or time operations to simulate your presence, so your home continues to look occupied while you are away.

Climate Control

It’s almost unheard of to live in any home without some kind of heating and cooling system. A comfortable temperature ensures a pleasant atmosphere for all the occupants, which can be individually tailored for every family member’s own particular thermostat.

Pools and Water Features

Not just your pool or jacuzzi, but perhaps a spot-lit fountain display can also be programmed into a Siemens PLC like LOGO! Such tasks as heating, pumping and cleaning of the water are controlled and run automatically. The system monitors the temperature and water quality, as well as controlling any underwater or poolside lights.

Access — Doors/Gates/Garages

Many homes have been security-enhanced with CCTV systems. These have been developing over the years, and can offer programmable, smart access control. Home-owners today can view their camera feeds remotely, get alerts via smartphone apps for unexpected movement, and record or store footage in the cloud.

Additional Safety Features

We have all experienced the anxiety of wondering whether we remembered to switch off the coffee machine or the stove, close the windows or lock the doors. Using a Siemens PLC to control a smart home helps to remove the source of these worries. The system can monitor all your appliances, and switch off the current automatically if you really have forgotten to do something critical. You’ll be able to open the door remotely in case of an emergency, and if the presence detection feature perceives uninvited guests in your house it will text you an alarm message. Additional options are an intelligent, self-testing smoke detector which contacts the Fire Brigade when a pre-defined time has elapsed, and a panic button which will instantly turn on lights or alarms.

Hello, I am Ryan, I work for Rowse in Plymouth UK. Rowse is an electrical wholesaler, automation and control supplier and pneumatics specialist