I am in the early stages of planning our system and I am starting with Front Door Access. I have been looking at the farfisa PL11P and a 12v Rim Lock Release all of which I have a good grasp of.
The complication is that I need to be able to open the door, whilst in 'Day Mode', from the outside without a key, keypad or anything else for that matter, I had thought of an IR beam BUT the door needs to be latched shut due to the wind and we don't have a handle with a latch (ie the only latch is the rim lock), security during the day is not an issue.
In 'Night Mode' I want the IR beam deactivated so that the front door can't be opened without a key from the outside but can be opened using the phones.
Finally in 'Away mode' (or any of the other modes for that matter) if someone arrives and needs to leave a parcel then we can remotely open a completely different lock (on a large secure box) to allow them access to that.
Any thoughts on how to achieve this would be very helpful.