How to achieve KNX Dynamic Text/String Display

176 views
Skip to first unread message

NickV

unread,
Nov 11, 2018, 2:46:23 PM11/11/18
to Loxone English

Hey all,

My install is going very well and I've got my head round KNX, but I'm somewhat stuck trying to display custom strings on my KNX MDT Glass switches.  I can see in the KNX setup how you display a dynamic string by telling the button config to pull it from an actuator, which is great, and I can set that actuator up on Loxone Config but that's where I'm running out ideas.

I'm looking to include the current target room temperature on the display in the format "Target temp 22.5C".  I can see the IRC has an output showing the current temperature, but I can't see an option to template this for display, e.g. "Target temp {}C" in either Loxone Config or ETS.  There also doesn't appear to be a Loxone function block that takes an analogue value and outputs a string, and there's no apparent template facility on either the KNX Text Actuator in Loxone Config, nor the configuration of the switch itself in ETS.

Has anyone achieved this, and am I missing something super dumb?

Nick

Tico

unread,
Nov 11, 2018, 4:40:27 PM11/11/18
to loxone-...@googlegroups.com
I'm not familiar with the KNX MDT switches, but as far as text strings in Loxone goes, you might try a State Block.

State Block.png


Feed the desired Target temp into AI1 of the State Block, and the Text Output can be fed from TQ to the application.

Duncan

unread,
Nov 12, 2018, 3:16:02 AM11/12/18
to loxone-...@googlegroups.com
you can display values or text from loxone but you need different types of outputs: up to 4 objects are cycled through in the information/standby menu, and these are specified using state elements 1 to 4 in the ETS configuration of your glass switch

1) temperature - set the information screen in ETS to show 1 of the 4 elements as type state value 1, and in state value 1 configure this as temperature (it will set data type 9, with a preset text as degC, and you can add a label such as 'outside'

add a group address to the new item in group object
create a standard group actuator with the same address and set it to EIS type 5, set the actuator to send regularly eg 2 or 5 mins to auto update the display
link your temperature in loxone to the EIS actuator

2) for text messages - set 1 of the state elements to state text 1 (over object 120) - there is also a 2nd message state text 2 over object 121 if needed.
these are 14 bytes long and will be trunkated if your message is too long
add group addresses to the state text 1 object (and state text 2 if required)

create a knx text actuator in loxone and give it the matching group address
create a state object in loxone and configure it so your different values or inputs create state-text outputs that contain your message
connect the TQ text output of the state object to your knx text actuator
Capture.JPG
Capture1.JPG
Capture2.JPG
Capture3.JPG
Capture4.JPG
Capture5.JPG

NickV

unread,
Nov 12, 2018, 1:50:04 PM11/12/18
to Loxone English
Superb, status block is exactly what I was looking for.  Thanks both, will get these switches whipped into shape!
Reply all
Reply to author
Forward
0 new messages