and+or?

[MikeB]

If I create a program that contains both an 'and' and an 'or' in the IF statement, how does it get parsed?

 

IF

status "switch 1" is on

and status of "switch 2" is on

or status of "switch 3" is on

 

Is it parsed like this:

 

IF

[status "switch 1" is on

and status of "switch 2" is on]

or status of "switch 3" is on

 

or like this:

 

IF

status "switch 1" is on

and [status of "switch 2" is on

or status of "switch 3" is on]

 

 

It might be nice to clarify that in the program content window when the commands are entered.

[Chris Jahn]

Hi Mike,

 

All the And conditions are grouped together, making your first example the correct one.

 

i.e.

A and B or C and D is equivalent to (A and or (C and D)

[MikeB]

Thanks...

 

So, I can combine these 2 programs:

 

If
       Program 'Floor 1 Status Update' is False
   And Status  'FoyerControls1G' is not Off

Then
       Set  Scene 'Floor1StatusLight' Off

Else
  - No Actions - (To add one, press 'Action')

 

 

If
       Program 'Floor 1 Status Update' is False
   And Status  'MasterBedControls1G' is not Off

Then
       Set  Scene 'Floor1StatusLight' Off

Else
  - No Actions - (To add one, press 'Action')

 

 

 

..with this:

 

 

If
       Program 'Floor 1 Status Update' is False
   And Status  'FoyerControls1G' is not Off
    Or Program 'Floor 1 Status Update' is False
   And Status  'MasterBedControls1G' is not Off

Then
       Set  Scene 'Floor1StatusLight' Off

Else
  - No Actions - (To add one, press 'Action')

 

Correct?

[Chris Jahn]

Yes, you can combine these programs.

 

You should also be aware of the And (...) / Or (...) buttons, they allow you to explicitly specify parentheses so you can have more complex programs.

[MikeB]

Doh!!!! I didn't even see that!

 

OK, so is this the equivelant?

 

If
       Program 'Floor 1 Status Update' is False
   And (
            Status  'MasterBedControls1G' is not Off
         Or Status  'FoyerControls1G' is not Off
       )

Then
       Set  Scene 'Floor1StatusLight' Off

Else
  - No Actions - (To add one, press 'Action')

[yardman 49]

Mike:

 

That looks to me like it should work.

 

I used the parentheticals already in one program and they worked as expected.

 

 

Best wishes,