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+--- Forum: C-Bus to KNX Translator (https://www.comfortforums.com/forum-103.html)
+--- Thread: Problem with send message from c-bus to knx (/thread-4585.html)
- m.j.sorokin - 12-29-2016
In this case, the device does not work with all the claimed features!
Application 56 \"Lighting\" in my project is almost entirely filled with light groups. And i need use additional aplications for send and recive data for other systems (Air Conditiones, ventilation, UPS...) managment and control from Color Touch Screens of c-bus...
Aplication like Zones, Security and Trigers are not suitable for these purposes.
I need to use an application such as light, but with a different address, so that I could self-define the values of these groups in the range from 0 to 255.
In the description specified that I can use the custom application, and the software allows this configuration. Why, in fact, this feature does not work?
And still like to clarify one issue. The brochure is specified that the device can transmit group adress with the types of Floating Point (2-byte), and Scaling (1-byte). In any c-bus applications and group adress I can use these types?
- slychiu - 12-30-2016
The Cbus to KNX translator was not designed to support the HVAC and Ventilation Applications. You will not be able to make these work using Custom applications
It does support Custom applications. However using Invalid or reserved application numbers like 70 and 71 may cause problems in CBUS not related to this product
Custom applications must be able to map to the supported KNX Address Types On/Off, Relative DIM, Floating Point, Scaling. If they cannot be mapped then it will not work
As the manual explains about Floatng point and Scaling KNX types
- On/Off means a 1-bit KNX telegram corresponding to a CBUS On/Off message.
- RelativeDim means a 4-bit KNX telegram which corresponds to a CBUS Relative Dimming command.
- Time means a Time KNX telegram corresponding to a CBUS Time message.
- Date means a Date KNX telegram corresponding to a CBUS Date message.
- Floatiing Point means a KNX Floating Point telegram. The incoming CBUS message has its object value converted to a floating point (ââ¬ÅEIS 5ââ¬Â) 2-byte telegram.
- Scaling means a the CBUS object value is sent as a KNX 1-byte (ââ¬ÅEIS 6ââ¬Â) telegram. For example CBUS Lighting application ON value is transmitted to the KNX mapped group address as a 1 byte value of 255, and CBUS Off signal is translated to a 1-byte telegram value of 0
- m.j.sorokin - 01-16-2017
You write that the compiler supports custom applications. But there can be problems in the c-bus network with these groups...
I tested the transfer of these groups on the network, via the touch screen, the group changed and transmitted within the network.
Problems occur on your device during transmission from c-bus network to knx.
For testing, I used the following tools:
For c-bus network: USB conection to network (5500PACA) and C-bus Toolkit v.1.14.6- ---
For KNX network: TCP/IP connection to WEB interface of Logic Machine 5 (Openrb)
For Cytech c-bus knx translator: USB connection and Bus Translator Configurator v.1.0.1.0 (config in attachment)
In this video I use only group Lighting applications (56). Transmission in both directions is operating normally.
https://youtu.be/fVh3c1QOEk4
In this video I use the application 49. It is evident that the group is transferred to the c-bus network. Even in the logs of your device can be seen that from a c-bus network comes status changes of this group.But changes dont transmit to KNX network.
https://youtu.be/0cLSgiX23mg
Custom application groups has type like groups in Lighting (56) application. And can be set ON, OFF, or ramped from 0 to 255.
- slychiu - 01-16-2017
You are saying that when you use custom application 49 like a lighting application, you can send the lighting command from Cbus, but it is not sent to KNX
How about in the other direction, does the mapped KNX group send to cbus work? I could not foillow the video
- m.j.sorokin - 01-16-2017
From knx to c-bus groups transmit normaly. link to video dont work?
- slychiu - 01-16-2017
We will look into this issue, perhaps a potential bug
- m.j.sorokin - 01-17-2017
Thank you. Please take this matter in the near future, since I have a fixed period of time to work the change. If I do what I can to help, ready to give any information or to conduct any testing equipment.
- slychiu - 01-21-2017
Can you test the cvus to knx firmware 1.006 attached to see if it will enable to custom application
Note that you can use custom applications 48 ($30) to 95 ($5F) as alternate Lighting applications. Other applications not recognised are still not accepted
- m.j.sorokin - 01-22-2017
Excellent! I check everything on Monday and the results write.
- m.j.sorokin - 01-24-2017
Today I tested the firmware cbusknx1_006.
In general, everything works
. But there are a few comments:1. Application âââ95 ($5F) are reserved for the network Dali. You can add any other application that is not reserved in the C-bus Toolkit software?
2. The system provided for in Application âââ136 ($ 88) - Heating. It works as well as the Application âââ56 ($38) - Lights. You could not just add it to use?
****Just wanted to clarify the next moment, whether it is possible in any of the c-bus application use variables type integer or Float? Or is it in the c-bus is not possible?