Advice on wiring and reed sensor

Hi,

I'd like to use a Shelly Plus 1 to control our car port entrance gates, which are managed by a DiTEC VIVAH controller, and add a reed sensor to get information whether the gates are closed.

The questions I have are:

The controller has three switching circuits that are relevant, one for open, one for close and one step-by-step for a combined open-stop-close action. If I'd want to go for independent open/close, I'd need two Shelly Plus 1 devices, correct? From your experience with such gates, which is the better approach, having only one action for open-stop-close (like with the remote control) or have two independent for open and close, which might be more handy for automation and rules?

Can you recommend any reed sensor that works well outdoors and accepts up to 230V?

I am not very experienced when it comes to electrical wiring, my understanding from the diagrams is that I'd have to do it like this. I'd take the 220V power supply and use it to power the Shelly. Therefore the reed sensor would also have to support 220V. For the actual switching, I'd connect the 1/0 of the Shelly to the terminals from DiTEC for the step-by-step action if I'd decide to go for that one. Does that make sense?

Here are the wiring diagrams of the two devices:

OK, after looking at this more closely, maybe there is a better way. I see that the DiTEC also has 24V DC output, and an output for a lamp that would light up if the gate is open. Maybe I could use that instead of the reed sensor. Based on the diagrams posted above, the wiring would then look like in the image below.

Again, does this make sense, would it work this way? And is the 0.5A of the output enough to power the Shelly Plus 1?

Here are more complete picture of the wiring I think should work for the 24V approach, with using the open indicator lamp instead of a reed switch. If weather allows I'll try this setup today or tomorrow.

I can report that it works as expected - I set it up like shown in the previous post, with 24V DC power supply from the DiTEC, and using the gate lamp pins as sensor. Both activating the doors and receiving the open status works fine, so I do not even need the reed switch.

I have now completed this little project and wrote a blog post on it - though garage/gate door integration has probably been done a zillion times before, it might still be of interest for anyone who is looking at the same components I am using - the Ditec VIVAH gate controller, the Shelly Plus 1 and openHAB. The project includes a script that translates the ON/OFF/Flashing of the gate open indicator lamp to a nicer OPEN/CLOSED/MOVING status.

https://www.the-ninth.com/blog/ditec-viv…-plus-1-openhab