Logical functions

Hallo,

Is the following questions possible with Velbus ?

I’ve 3 inputs called I1, I2 and I3 (VMB7IN).
I’ve 1 output called O1 (VMB4RYNO).
I’ve 1 virtual output called vO1 (VMB4RYNO).

In normal situation, everything has value 0.

Output O1 gets the value 1 when input I1 or I2 or I3 gets the value 1 but only if virtual output vO1 has the value 1.
If vO1 has the value 0, than the value of O1 stays 0, even I1, I2 or I3 gets the value 1.

Thanks for your answer !

regards, Hans

Hi,

This can be done quite easily:

1 - mount every input to achieve an OR function (action MOMENTARY):
INITIATOR: I1 / SUBJECT: O1 / ACTION: momentary
INITIATOR: I2 / SUBJECT: O1 / ACTION: momentary
INITIATOR: I3 / SUBJECT: O1 / ACTION: momentary

2 - Suppress O1 as long as vO1 is open:
INITIATOR: vO1 / SUBJECT: O1 / ACTION: 37. Inhibit at open switch

Kris

Hallo Kris,

Thanks for this solution. It’s what I need.

But I have a question about setting the value of vO1 to 1.

  1. Is it possible that contact vO1 only has the value 1 between 8.00u en 12.00u for example ?

and

  1. Is it possible that contact vO1 gets the value 1 at 21.00u and gets the value 0 at 8.00u ?

Thanks again !

Hans

please take a look at the SUPPORT/FAQ (Dutch part of velbus website)
The first item tells you how the use sun rise programmation, you only have to change the relay by your virtual relay.

Kris

You can also use the logical functions in homecenter.

more info: homecenter.be/downloads/550/

Kris Daelman