Logic module

What is a KNX logic module and what options does the device offer when linking simple and highly complex functions? Why do we recommend logic modules as a useful addition to any KNX system? Find out here.

KNX is the standard protocol for smart home and building automation. A system equipped with KNX technology enables you to control all connected devices in your household via a touch panel or remotely. The KNX technology is used not only in private homes or shops, but also in industrial buildings, hospitals, schools, high-rise buildings, universities, yachts and ferries and other facilities. The KNX automation system in residential or industrial buildings connects a large number of devices within the same facility. This allows information to be exchanged very quickly and maximizes efficiency in the workplace. There are hardly any limits to the size of a system and its complexity. KNX can be connected to different systems like BACnet, LON, LCN, RS485, LoRa, NB-IOT, Zigbee and others. This creates almost unlimited possibilities. Changes and extensions are possible at any time, quickly and inexpensively. The KNX automation makes our life more comfortable because it is:

  • flexible - Almost all functions in the house can be controlled via KNX. Numerous brand manufacturers offer a wide variety of compatible devices.
  • User-friendly - All electrical devices are easy to control. All control modules can be operated manually.
  • safe and secure - the KNX system is not based on 230V, but on harmless 24-30 V. With the KNX Secure function, the system is particularly secure.

 

With the KNX technology, the house, property and outbuildings can be controlled and monitored automatically. The use of additional control centers is not necessary. The KNX system fulfills a large number of functions, for example lighting, air conditioning and security systems. Work steps and daily routines are accelerated and the energy in our living space is used more efficiently.

 


Easy installation:

As series installation devices, logic modules are quickly clamped onto the DIN rail. The KNX connection is made using a special terminal.


 

In order to create a perfect setup, numerous primary and secondary components can and must work together in a system. This includes KNX logic modules. These are always used when the installed KNX devices lack the necessary logic functions for specific tasks or higher-level central control and regulation tasks are required. As a modular installation device with a width of 1 to 2 modular widths, logic modules and scene modules/event modules also fit into small installations. An additional power supply is not necessary. The device draws its energy from the KNX system.

What are KNX logic modules used for?

KNX logic modules are a very useful and important addition to any KNX system. This means that additional functions can be reliably mapped. With the help of KNX logic modules, you can define a wide variety of dependencies and logically link group addresses. It is possible to implement simple and highly complex functions, from the alarm system to meter monitoring. You always remain decentralized and independent of central server components.

Source: eibabo®, MDT SCN-LOG1.02 logic moduleImage: MDT SCN-LOG1.02 logic module

KNX logic modules offer linking functions with:

  • all common logic gates, filter functions, time functions
  • Time modules with comparison function and run-on time
  • converters and multiplex modules
  • delay blocks
  • light scene modules
  • Monitoring functions of bus participants
  • complex specific blind controls
  • hour counters
  • temperature switches or temperature modules
  • Converters for converting telegrams
  • Sequencer modules for generating multiple telegrams
  • and many more

 

TIP

Even if a KNX server/visualization is used, we recommend a KNX logic module for failure monitoring or for relevant functions that must be ensured in the event of a KNX server failure.


You are still not sure what practical use logic modules have? We will show you with a very simple example:

Suppose you have a small pond with a fountain on the patio of your house. Now you want the fountain to be running when you are home in the evening. The easiest would be to turn it on and off manually. No automation is used here. Using a timer is a bit more convenient. This means that the fountain runs in the evening after work, for example from 5 p.m. to 9 p.m. However, this is not yet intelligently automated. If the fountain's power supply is connected to the KNX bus, you could set the switch-on time in the evening and let the fountain run until sunset. But what if you sit longer on your terrace at the weekend and don't want the fountain to switch off when the sun goes down. This is where the logic module comes into play. In addition to timing and sun control, you can now command the fountain to keep running as long as the patio lights are on.

How are KNX logic modules programmed?

The KNX logic module is usually parameterized via the ETS (Engineering Tool Software). Complex KNX logic modules are processed using a simple graphic editor, which also enables laypersons to easily program and commission them. These logic modules often require free additional software/plug-in provided by the manufacturer.

Are there different KNX logic modules?

eibabo® has a large portfolio of KNX modules that are designed for a wide variety of tasks. These include KNX logic modules, KNX logic building blocks, KNX security modules, KNX application building blocks, KNX time building blocks, KNX logic controls, KNX link building blocks, KNX monitoring building blocks, KNX function modules, KNX scenes/event building blocks, KNX visualization servers and KNX logic controllers. When buying, make sure you choose high-quality goods from manufacturers such as ABB, Berker, Buderus, Busch-Jaeger, Hager, Jung, MDT, Merten, Schneider-Electric or Siemens.

 

eibabo - technology store

 

Catalogue content:


In this eibabo® catalogue Installation bus systems > Logic component for bus system you will find items from the following product groups:

Item overview:

  • Alarm module
  • Application controller
  • Application module
  • Bus technology
  • Controllers
  • Function module
  • Logic module
  • Monitoring module
  • Security module
  • Socket cover
  • Zone terminal


from the following manufacturers:

Manufacturer overview catalogue Logic module:

  • ABB
  • BUDERUS
  • Busch Jaeger
  • Gira
  • MDT
  • Merten
  • Schneider Electric
  • Siemens


 
What is a KNX logic module and what options does the device offer when linking simple and highly complex functions? Why do we recommend logic modules as a useful addition to any KNX system? Find... read more »
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Logic module - for expanding the range of KNX functions

What is a KNX logic module and what options does the device offer when linking simple and highly complex functions? Why do we recommend logic modules as a useful addition to any KNX system? Find out here.

KNX is the standard protocol for smart home and building automation. A system equipped with KNX technology enables you to control all connected devices in your household via a touch panel or remotely. The KNX technology is used not only in private homes or shops, but also in industrial buildings, hospitals, schools, high-rise buildings, universities, yachts and ferries and other facilities. The KNX automation system in residential or industrial buildings connects a large number of devices within the same facility. This allows information to be exchanged very quickly and maximizes efficiency in the workplace. There are hardly any limits to the size of a system and its complexity. KNX can be connected to different systems like BACnet, LON, LCN, RS485, LoRa, NB-IOT, Zigbee and others. This creates almost unlimited possibilities. Changes and extensions are possible at any time, quickly and inexpensively. The KNX automation makes our life more comfortable because it is:

  • flexible - Almost all functions in the house can be controlled via KNX. Numerous brand manufacturers offer a wide variety of compatible devices.
  • User-friendly - All electrical devices are easy to control. All control modules can be operated manually.
  • safe and secure - the KNX system is not based on 230V, but on harmless 24-30 V. With the KNX Secure function, the system is particularly secure.

 

With the KNX technology, the house, property and outbuildings can be controlled and monitored automatically. The use of additional control centers is not necessary. The KNX system fulfills a large number of functions, for example lighting, air conditioning and security systems. Work steps and daily routines are accelerated and the energy in our living space is used more efficiently.

 


Easy installation:

As series installation devices, logic modules are quickly clamped onto the DIN rail. The KNX connection is made using a special terminal.


 

In order to create a perfect setup, numerous primary and secondary components can and must work together in a system. This includes KNX logic modules. These are always used when the installed KNX devices lack the necessary logic functions for specific tasks or higher-level central control and regulation tasks are required. As a modular installation device with a width of 1 to 2 modular widths, logic modules and scene modules/event modules also fit into small installations. An additional power supply is not necessary. The device draws its energy from the KNX system.

What are KNX logic modules used for?

KNX logic modules are a very useful and important addition to any KNX system. This means that additional functions can be reliably mapped. With the help of KNX logic modules, you can define a wide variety of dependencies and logically link group addresses. It is possible to implement simple and highly complex functions, from the alarm system to meter monitoring. You always remain decentralized and independent of central server components.

Source: eibabo®, MDT SCN-LOG1.02 logic moduleImage: MDT SCN-LOG1.02 logic module

KNX logic modules offer linking functions with:

  • all common logic gates, filter functions, time functions
  • Time modules with comparison function and run-on time
  • converters and multiplex modules
  • delay blocks
  • light scene modules
  • Monitoring functions of bus participants
  • complex specific blind controls
  • hour counters
  • temperature switches or temperature modules
  • Converters for converting telegrams
  • Sequencer modules for generating multiple telegrams
  • and many more

 

TIP

Even if a KNX server/visualization is used, we recommend a KNX logic module for failure monitoring or for relevant functions that must be ensured in the event of a KNX server failure.


You are still not sure what practical use logic modules have? We will show you with a very simple example:

Suppose you have a small pond with a fountain on the patio of your house. Now you want the fountain to be running when you are home in the evening. The easiest would be to turn it on and off manually. No automation is used here. Using a timer is a bit more convenient. This means that the fountain runs in the evening after work, for example from 5 p.m. to 9 p.m. However, this is not yet intelligently automated. If the fountain's power supply is connected to the KNX bus, you could set the switch-on time in the evening and let the fountain run until sunset. But what if you sit longer on your terrace at the weekend and don't want the fountain to switch off when the sun goes down. This is where the logic module comes into play. In addition to timing and sun control, you can now command the fountain to keep running as long as the patio lights are on.

How are KNX logic modules programmed?

The KNX logic module is usually parameterized via the ETS (Engineering Tool Software). Complex KNX logic modules are processed using a simple graphic editor, which also enables laypersons to easily program and commission them. These logic modules often require free additional software/plug-in provided by the manufacturer.

Are there different KNX logic modules?

eibabo® has a large portfolio of KNX modules that are designed for a wide variety of tasks. These include KNX logic modules, KNX logic building blocks, KNX security modules, KNX application building blocks, KNX time building blocks, KNX logic controls, KNX link building blocks, KNX monitoring building blocks, KNX function modules, KNX scenes/event building blocks, KNX visualization servers and KNX logic controllers. When buying, make sure you choose high-quality goods from manufacturers such as ABB, Berker, Buderus, Busch-Jaeger, Hager, Jung, MDT, Merten, Schneider-Electric or Siemens.

 

eibabo - technology store

 

Catalogue content:


In this eibabo® catalogue Installation bus systems > Logic component for bus system you will find items from the following product groups:

Item overview:

  • Alarm module
  • Application controller
  • Application module
  • Bus technology
  • Controllers
  • Function module
  • Logic module
  • Monitoring module
  • Security module
  • Socket cover
  • Zone terminal


from the following manufacturers:

Manufacturer overview catalogue Logic module:

  • ABB
  • BUDERUS
  • Busch Jaeger
  • Gira
  • MDT
  • Merten
  • Schneider Electric
  • Siemens
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