How to toggle Two Relay channels

Can someone explain how to toggle between two relay channels?

When A is on or turned on B should be or turned off and reverse.

 

Assuming you have a device that handles scenes (i.e. Neo/Saturn switch etc or a logic device), just create 2 scenes that set the relays to opposite actions then trigger the appropriate scene. You can do this via a single switch (search for scene toggle).

Otherwise just buy a change over relay and control it by a single cbus relay.

Note that if both relays being energised is a bad thing, software solutions are generally considered to be unreliable.

 

Or a C-Bus change over relay L5504RVFC

 

Or just get the existing C-bus relay to drive a separate simple change-over relay

 

Thanks guys, I was able to achieve the toggle by setting two scenes on my saturn switch.
But ..... now one is always on ....
I think did not correctly describe the scenario.

A - Triple-LED lights
B - Heat Lamp

When A is on, B should be Off / If B is switched on, A should turn Off - Able to get this working.
But either A or B is on, How to turn both off?

 

Create a third All Off scene. You can either trigger it from another switch or use a long press so set a preset value.

 

@Ashley Thanks, I used Scene capability and did the following on a 6-button Saturn Switch taking from your suggestion
B1 : A On / B Off
B2 : A Off / B On
B3 : A Off / B Off

So I have achieved the necessary requirement (This was for IXL Tactic). So good for now.



Though, I would have liked to achieve this with just two buttons, Like
B1 : First Press : A On / B Off
B1 : Second Press : A Off / B Off

B1 : First Press : A Off / B On
B1 : Second Press : A Off / B Off


Not sure if there is any way to achieve this?

 

Unfortunately you can only toggle between off and on (i.e 0 and 255 (100%)) which only allows 2 action selectors for two scenes. If you were happy with a short press for On and a long press for OFF you could make the short press a preset and the long press an off and get what you wanted. Otherwise if you have a logic unit it's pretty simple to implement the toggle functions.

Personally I find the eDLT's a bit brain dead for my liking. Of only they had kept all the micro functions in addition to the widgets.....

 

You could do this with two buttons. Just use two "both off" scenes.

Sc1: A on, B off (Trigger group X=255)
Sc2: A off, B off (Trigger group X=0)
Sc3: A off, B on (Trigger group Y=255)
Sc4: A off, B off (Trigger group Y=0)

Just make sure your indicator kill situation is correct and this should work fine, I would have thought.


Alternatively, since the both-on situation doesn't really matter if it only happens for a few fractions of a second, you could do it with only two scenes.

Sc1: A off (Trigger group B=255)
Sc2: B off (Trigger group A=255)

Then just make Button 1 be On/Off group A and Button 2 = On/Off group B


Both of these solutions require either a logic device with a proper scene engine, or multiple scene-capable input devices so you can have different trigger groups.