Comfort Automation/ Security System Forums - KNX (EIB)

KNX/Logic Example

Sat, 20 May 2023 23:37:52 -0400

This example shows how KNX/Logic can implement Logic conditions with If/Then/Else actions more easily than using other KNX logic products.
This requirement is for a public toilet in a large public building eg Railway or Airport. A KNX Human Presence Counter is installed (eg https://www.steinel.de/en/sensors-profes...33200.html ), to count the number of people in the male and female toilets. The logic required is as in the flowchart below. Basically, the Fan speed is determined by the number of people detected. if the number is >5, the fan speed goes from low to medium, and if >10 the speed goes to High immediately. However if the people counted is less than 9, the fan speed goes from High to Medium after some time eg 15 minutes and if the people detected is less than 5, the fan speed goes from medium to low after eg 15 minutes. The purpose is for energy saving for a facility that is open 24 hours a day 7 days a week. This system is implemented in all the toilets in the facility, thus can result in significant energy saving in the building or buildings.

Another requirement not mentioned above is that the maximum counter of the Male and Female Toilets is used in the logic, so the logic uses the larger number based on the 2 toilets in its determination of fan speed

In Comfigurator, go Modules Tab > Controller, and the right pane with KNX/Logic Properties. Select KNX > Comfort Tab as shown below.
Add the 3 KNX objects; 1 byte Scaling Values (EIS6).
0/0/2 is the Fan speed. Map to Counter 17
0/0/15 is the 1st Toilet People Count. Map to Counter 15
0/0/16 is the 2nd Toilet People count. Map to Counter 16

Each KNX object is mapped to a Counter Register in this program. Counters are 16 bit registers in Comfort which hold values and can execute Responses, or Programs based on the counter value.

In the Counters screen below, each Counter can be assigned to a Response or program in Comfort. This allows the Response to perform logic on the counter based on the Value in the counter. Counters 15 and 16 are both assigned to the same Response.

The Response assigned to the counter is programmed in the Responses Screen (Events > Responses)

The Responses consists of Actions, The text of the Response is duplicated below:

If Counter Counter015 >= 10 Or Counter Counter016 >= 10 Then
    Set Counter017(17) = 255
    Stop Timer Timer01(1)
    Exit Response
Else
    Do Medium After 10 Seconds Using Timer01(1)
End If
If Counter Counter015 >= 5 Or Counter Counter016 >= 5 Then
    If Counter Counter017 = 255 Then
        Do Medium After 10 Seconds Using Timer01(1)
    Else
        Do Medium
        Stop Timer Timer01(1)
    End If
Else
    If Counter Counter017 = 255 Then
        Do Medium After 10 Seconds Using Timer01(1)
    Else
        Do LOWFAN After 10 Seconds Using Timer01(1)
    End If
End If

Do Medium means Do the Medium response which sets fan speed to Medium Value.
Do LOWFAN means Do the LOWFAN Response which sets the fan speed to Low.

Timers (max 32 timers) can also be used to implement delays between actions.
Do LOWFAN After 10 Seconds Using Timer01(1) means delay for 10 seconds then do LOWFAN.. 10 second delay is used for testing so that we do not have to wait so long to test. When testing is completed, the delays can be increased to say 15 minutes.
Stop Timer means stop the timer to prevent the target Response from executing.

Sample ucm/KNX file

Tue, 12 Jul 2022 02:42:30 -0400

This is a very simple cclx file with KNX, see alarms to KNX and KMX to comfort acting as keypad keys

knxsample.cclx (Size: 373.28 KB / Downloads: 3)

Invert zone open/closed sent to KNX

Thu, 13 Feb 2020 09:41:58 -0500

Hi Chiu
currently, when mapping comfort zones to KNX Group Addresses, 0 = Off, 1 = On.
Is it possible, to allow the user to invert the values sent to the bus: 0 = On, 1 = Off ?
Thanks
Massimo

KNX/Logic Processor

Sat, 23 Mar 2019 03:11:59 -0400

Cytech is pleased to introduce the KNX/Logic Processor.

The KNX Logic Processor is an Automation Controller with a KNX Interface which can work with other Cytech interfaces including CBUS, Z-Wave, GSM, Modbus, Velbus, IRIO, HIO Hotel I/O. KNX/Logic is applicable to an automation system which does not require the Comfort Intruder Alarm, but has the same capability of Comfort for Responses, Time Programs, Timers, Counters, Flags, and Sensors. It does not have the Voice recording/playback, voice menu, dial out, and telephone interface of Comfort and does not have any inputs and outputs.

Key Features

2 way KNX Interface able to send telegrams to KNX and receive from KNX
Scheduling with 32 Time Programs.
KNX buttons can be mapped to Comfort Counters, Flags and sensors, allowing control of non-KNX appliances like air-conditioners and other 3rd party automation systems
Synchronise KNX/Logic real time clock to KNX devices. KNX/Logic has automatic Daylight saving adjustments and Sunrise/Sunset times based on locations. The optional UCM/ETH03 module is synchronised to Internet Time Servers.
Read Temperature and other sensors on the KNX bus or supply temperature readings or setpoints to KNX from Cytech modules like MSM01 Multisensor Module
Functions as a Central Processor/controller for an KNX network which is able to coordinate the functions of all the subsystems including security, lighting, HVAC, and others. KNX/Logic is able to take action based on conditional logic, for example, when the time is between 7 PM and 7 AM, on selected days of week etc
Control KNX devices by Cytech mobile apps (iOS and Android)
Interfaces to other systems eg C-bus, Modbus, etc by Cytechs UCM interface modules

Specifications

UCM size 108 x 88 mm
Direct connection to KNX bus
Power Supply 12V to 15V 1A wallmount universal adaptor 90V to 240VAC with UK, EU or US plug. The KNX Bus is isoolated from KNX/Logic voltages.
Control Menu Ã¢â¬â 8 Control Groups, each with 10 control keys, each control key has 10 Action keys.
512 Responses for custom programming
255 Counters can be mapped to KNX, Cbus, Zwave, IRIO, HIO etc
255 Flags can be mapped to KNX, Cbus, Zwave, IRIO, HIO etc
32 Sensor Registers can be mapped to KNX, Cbus, Zwave, TSM etc
32 Time Programs or Schedules
Sunrise/Sunset times with automatic daylight saving time adjustments
64 Timers for programmed delays 1 to 65534 seconds.
Current Consumption 30 mA @12V
Connected to KNX Bus via bus cable (2 wires).

KNX

KNX Physical addresses can be assigned to KNX/Logic, Area 0 to 15, Line 0 to 15, Physical Address 1 to 200
KNX to Comfort allows 256 Group addresses to be mapped to Comfort.

KNX/Logic website is here https://www.cytech.biz/brochure/knx-logic.html

Comm failure when configuring 3rd party device on KNX BUS

Mon, 24 Sep 2018 08:58:28 -0400

We have a confusing problem on a couple of sites where a communication failure for KNX UCM occurs each time we update the configuration of a 3rd party device that is also connected to the KNX bus.

3rd party device is a LOXONE miniserver (I know, don\'t laugh!)

Every time we update the configuration for that device something triggers a communication failure between Comfort and the KNX UCM.

I can\'t see anything wrong on the KNX bus (in the ETS group monitor) but the unit does issue quite a few \'read\' telegrams when it boots in order to sync itself to the system.
I can\'t see anything wrong in the monitor of the KNX UCM when we write to the Miniserver.

The event log in comfort simply logs the communication failure (as one would expect) and not the cause.

We do however see some items in the UCM IO monitor that I can\'t find any more info about when this happens.

The serial protocol lists the items as...\"TT - Monitor Data The format depends on the specific UCM Type and is not covered in the general protocol\"

Is there any info available on the format of this message?
Specifically the following messages...
< TT13BC112F1132E300800C20
< TT13BC1127114EE10081
< TT13BC11121002E10081
< TT13BC110F1006E10081
< TT13BC110F100EE10081
< TT13BC11101007E10081
< TT13BC1110100FE10081
< TT13BC11070A26E10000
< TT139C11070A26E10000

Also these status messages occur at about the same time as some of the \'TT\' messages and seem to refer to module 15, but I can\'t see this referenced in the serial protocol and can\'t work out which module it would be.
< SS0F000A
< SS0F0000

are any of these relevant to our problem?

Comfort to KNX website

Sat, 25 Nov 2017 10:37:51 -0500

Check out the new Comfort to KNX page on the all-new Comfort website https://www.cytech.biz/brochure/comfort-to-knx.html

Problems in knx2

Tue, 07 Nov 2017 02:37:28 -0500

Hi,
Every time i start the configurator with last default file the program reports the following mistake and the software donÃÂ´t start.

System.NullReferenceException: A referÃÂªncia de objecto nÃÂ£o foi definida como uma instÃÂ¢ncia de um objecto. em Comfort.UcmKnx2ToComfort.get_RegisterName() em Comfort.UcmKnx2ToComfort.AddReferences(Dictionary`2 references, UcmKnx2 ucmKnx2) em Comfort.UcmKnx2.AddReferences(Dictionary`2 references) em Comfort.Configuration.BuildReferences() em Comfort.Configuration.GetReferences(ConfigListItem configListItem) em Comfort.Response.FlagOmittedResponses(Configuration configuration) em Comfort.Response.EncodeResponses(Configuration configuration, Boolean flagRequireWriteToEeprom) em Comfort.Form1.SetNewConfiguration(Configuration newConfiguration, Boolean keepPanel) em Comfort.Form1.NewConfiguration(String filename) em Comfort.Form1..ctor(String filename) em Comfort.Program.Main(String[] arguments)

My configurator ver is 3.12.1 but i think the problem is with the latest update to knx2 of my knx ucm.
Can someone help me ?
Kind Regards,

Selectively report Zone Status to KNX bus

Tue, 06 Jun 2017 12:49:27 -0400

Hello

I have 21 motion detectors connected to Comfort and during normal house activity it causes a lot of traffic on the KNX bus and delays on the transmission of information from Comfort to KNX.
I would like to skip the sending, from Comfort to KNX, of the status report for the motion sensors but still receive information of the non-motion sensor zones.
Is there a way to selectively report zone status to KNX bus ?

( by the way in the \'UCM/KNX2 - Comfort to KNX Interface\' pdf manual in page 27 it is referred \"In the screen shot above, the zone status is assigned to Group address 0/1/1.\" but there is no such screenshot . Please correct manual)

Regards
Eurico

Temperature from KNX

Thu, 20 Oct 2016 10:25:12 -0400

Hi,
I am a user from Portugal and I have a problem in the KNX module when receiving temperatures from knx in celciuos. I assign a 2 byte object in knx and put it in a sensor, but the temperature values lost the decimal values in cytech. For example, 21.60ÃÂºC appears as 22 in cytech. Is there any way to keep the values with the decimal part?
Thanks,

UCM/KNX2

Sat, 18 Jun 2016 08:51:53 -0400

The 3rd generation KNX Interface is called UCM/KNX2 (after UCM/EIB and UCM/KNX)
see webpage https://www.cytech.biz/brochure/comfort-to-knx.html

The main improvements over UCM/KNX2 are;

Improved Mapping of KNX to Comfort objects (see below). Separate mapping for KNX to Comfort registers and Comfort registers to KNX support KNX objects having different control and feedback addresses.
Comfort Inputs/Zones can be mapped to KNX 1-bit objects so Comfort Input changes (On/Off) can provide feedback for KNX, for example for status of Airconditioners by Current sensor. A different KNX address can be mapped to Output or Counter to control the Airconditioner or appliance. In the UCM/KNX, Zone Responses were needed to send status to KNX.
Comfort Outputs can be mapped to KNX so that Output On/Off changes can be mapped to KNX 1-bit objects. A different KNX address can be mapped to the same Output. This allows different KNX control group address and Status group address for output control
Flags to KNX allow Comfort Flags to be mapped to KNX 1-bit objects. A different KNX address can be mapped to the same flag in KNX to Comfort. This allows different KNX control group address and Status group address. Flags can be used to control other devices in Comfort which act on the same flag.
Counters to KNX (1-bit) allow Comfort Counters to be mapped to KNX 1-bit objects to send On/off command or status. Counters to KNX (1-byte) allow Comfort Counters to be mapped to KNX 1-byte objects to send levels. Different KNX addresses can be mapped to the same Counter in KNX to Comfort. For example, a KNX 1-bit address can be mapped to a Comfort Counter. The same KNX device can send a 1 byte value which is mapped to the same Comfort Counter as dimming level, as well as map a 4-bit group address to the same counter for relative dimming. The Comfort counter can be mapped to a 1-bit KNX address for on/off feedback as well as to a KNX 1 byte address for absolute dim level.
Sensors to KNX allow Comfort sensors to be mapped to KNX 2-byte Floating Point objects.
With the enhanced mapping of Comfort Registers to KNX, it should not be necessary to use Responses to send commands to KNX, although this is stil possible. This simplfies programming and saves tim
easier entry of KNX addresses, by just typing the address eg 1/2/3 instead of selecting Main. mid, and subgroup addresses from pulldown lists. Comfigurator will check that the group address is unique
Disarm to Security Off by 1 bit KNX address is possible. This should be applied to specific KNX scenes or situations and not as a general button, for security reasons

Mapping of KNX to Comfort
Mapping of KNX Objects include 1-bit, 4-bit, 1-byte, Time, Date, 2-Byte Floating Point, 2 Byte Counter.

KNX 1-bit (EIS1)
Map to Counters, Flags, Outputs, Output Pulse, Output Toggle, Virtual Input, Arm Security (Security Off, Away, Night, Day, Vacation), Bypass zone, Panic

Mapping to Output means that a KNX 1-bit address turns on and off any Comfort output directly
Mapping to Output Toggle will toggle the output
Mapping to Output Pulse sends a 1 second pulse to the output
Mapping to Flag allows a 1-bit KNX address to be mapped to a flag so that changing the KNX state causes the flag to change state accordingly. In the reverse direction, Flags to KNX allows flags states to change KNX 1 bit group addresses.
Mapping to Virtual Input means the KNX object eg motion sensor can act like a real Input to the security system, according to Zone Types and will trigger the zone Response
Mapping to Arm Security allows the KNX object to Arm the security sysyetm to Away, Night, Day, Vacation. Disarm to Security Odd is not allowed, althoughh it is listed in the options
Mapping to Bypass zone means the KNX object can bypass and unbypass any Alarm Zone.
Mapping to Panic means the KNX Object can trigger a Panic Alarm when pressed

KNX 4-bit (EIS2)
4-bit relative values can be mapped to Comfort Counters. The counter value is calculated based on the relative change

KNX 1-byte (EIS6)
1-byte Objects (EIS6) can be mapped to Comfort Counters and Keypad Key. Mapping to Keypad Key allows a virtual keypad on a KNX touchscreen to arm or disarm the security system.

KNX 2-byte Floating Point (EIS5)
2-byte Floating Point Objects (EIS5) can be mapped to Comfort Sensors

KNX 2-byte Counters (EIS10)
2 byte Counter Objects (EIS10) are mapped to Comfort Counters.

Mapping of Comfort to KNX
New tabs Alarm to KNX, Inputs to KNX, Outputs to KNX, Flags to KNX, Sensors to KNX, Counters to KNX (1-bit), Counters to KNX (1-byte) allow mapping of Comfort registers to KNX to provide Control and Status feedback to KNX

In Monitor Mode, the meaning of the telegrams from KNX are shown

Cytech at BEX Asia with KNX South East Asia

Tue, 15 Sep 2015 10:05:00 -0400

Cytech was part of the KNX exhibit at BEX Asia 2015 at Marina Bay Sands

see https://www.facebook.com/CytechComfort/p...7848412401

KNX Test Buttons

Sat, 20 Jun 2015 08:37:35 -0400

In the KNX configurator screen, after adding or learning KNX addresses, select the KNX group address in the centre pane, and press the [color=\"#ff0000\"]Switch Device ON[/color] or [color=\"#ff0000\"]Switch Device Off[/color] buttons (on the right pane) to test the KNX address.

This should switch on or off the KNX device. It is not necessary to WRITE to EEPROM for the UCM/KNX to use the test buttons. See the screenshot below

However, there is a BUG in Comfigurator up to 3.10.4 - The Test buttons do not work for KNX group addresses 1/7/X (where X is the subgroup). This is a problem for the test buttons only, but the actions to send a command to control 1/7/X will work

Save status of knx GA and resend it to bus after 1 minute of 230V return

Fri, 17 Apr 2015 11:23:36 -0400

Hi!We have a project where we need the values of certain group addresses to be restored 1 minute after a power failure. That would be very easy with a response \"after power return\", but we have an equipment in the bus that when the power fails, sends a reset to those GA.With this in mind, we need to know if Comfort can save these variables before power failure to counters, and doesn\'t allow any writings in these counters during the first minute of power return. Afterwards we would make a response for power return in order to write in knx the saved status of the counters.

Example: file *.cclx for UCM/KNX

Fri, 24 Oct 2014 16:16:40 -0400

Hi all,I\'m a newcomer and i\'m finding out UCM/KNX, can you give me a program complete for UCM/KNX?Thanks!

responses linked to knx

Tue, 07 Oct 2014 11:06:55 -0400

Hi all,

I want to get a response from a zone input to send cyclically, the response is linked to a 1 bit on / off knx group address.

Please help