Skip to main content
Demo phase – venfree is still being built.
venfree.de
Login
venfree/KNX Devices/Functions/KNX Logic Module & Timer

KNX Logic Module & Timer

KNX logic modules and timers compared: Theben LM 241 with AND/OR/NOT logic and weekly timer.

A KNX logic module combines bus telegrams with AND, OR, and NOT operations, without custom ETS application programming. Timer channels switch devices at fixed times or according to weekly schedules.

BE-08024.02 Binäreingang 8-fach 24V
MDT		8134 €Details
TR 648 top2 RC KNX
Theben		1343 €Details

Prices are net list prices (excl. VAT). Actual street prices may vary.

Related KNX Functions

KNX Switch Actuator
11 devicesfrom 18 €/ch
KNX Presence Detector & Motion Sensor
3 devicesfrom 93 €/ch

KNX Wiki: Basics

KNX Communication Object (CO)
A communication object (CO) is a data point on a KNX device. It has a type (DPT), a direction (send/receive), and is linked to COs on other devices via group addresses.
Read article →
KNX Group Address
A KNX group address (GA) is a logical address that links communication objects (COs) of different devices. Whatever is written to a GA is received by all other COs bound to that GA, the publish-subscribe principle of KNX.
Read article →
KNX Flags – C, R, W, T, U, I
KNX flags control the behaviour of a communication object on the bus. They define whether a CO can send, receive or respond to telegrams, and whether it requests a value on startup.
Read article →
KNX Scene
A KNX scene stores the states of multiple devices as a single data point (DPT 17.001). When the scene is recalled, all associated actuators are simultaneously set to their stored values.
Read article →

Frequently Asked Questions

KNX Logic Module & Timer: What is it?

A KNX logic module combines bus telegrams with AND, OR, and NOT operations, without custom ETS application programming. Timer channels switch devices at fixed times or according to weekly schedules.

KNX Logic Module & Timer: What does it cost?

In the venfree catalog from 17 € per channel (net list price, excl. VAT). The total depends on the number of channels and the manufacturer.

KNX Logic Module & Timer: Which manufacturers are available?

In the venfree catalog: MDT, Theben, among others.

KNX Logic Module & Timer: How many do I need?

It depends on the number of channels. venfree automatically calculates the requirement from your rooms and functions, free and without an account.

Need a KNX Logic Module & Timer?

venfree automatically calculates how many channels and devices you need, based on your rooms and functions. Free, no account required.

Plan now
← Function overviewKNX Devices →KNX Wiki →