Python syntax

[Taxus]

Hi Raymond,

EC[m] tells you, that the logic module has been triggered by a telegramm arriving at pin number m, and
EN[m] tells you the value of the telegramm.

Greetinx!

[Warichet]

The solution which worked for me is:
"((EN[9] & 1)==1)" to test if bit 1 is set
"((EN[9] & 2)==2)" to test if bit 2 is set
"((EN[9] & 4)==4)" to test if bit 4 is set

Hé, hé
Thank for the tip . Will try it asap

That worked for me without any problems after I first tried it in the same way as you did...

The same cause often yields the same result

Another question, about the variables EN and EC

EN Array The current value of the inputs.
EC Array of Boolean
  1 == A telegramm has been received at the input.

I don't see the subtle difference.
A word of explanation is welcome.

Thank you very much.

[MarcNaroska]

Hey Raymond!

I had this problem before while developing my Rolladen-Baustein.
The solution which worked for me is:
"((EN[9] & 1)==1)" to test if bit 1 is set
"((EN[9] & 2)==2)" to test if bit 2 is set
"((EN[9] & 4)==4)" to test if bit 4 is set
and so on.

That worked for me without any problems after I first tried it in the same way as you did...

[Warichet]

Hi,

I'l having a problem with the logical "AND" in the conditional part of the Python expression.

5012|0|"(EN[9] & 1)"|"EN[1]"|""|1|0|0|0
5012|0|"(EN[9] & 2)"|"EN[2]"|""|2|0|0|0

I'm trying to do a bit wise test on a 8 bit status byte (0-255).
If the input value EN[9] = 3 and I do a logical "AND" with 1, the result should be non-zero (i.e. 1 in this case) and the formula should be executed. Right ?

If the input value EN[9] = 3 and I do a logical "AND" with 4 (or 8 or 16 or 32 or 64 or 128), the result should be zero (i.e. 0 in this case) and the formula should not be executed. Right ?

If I "force" the condition to 1, the formula works as expected, so I'm pretty sure I've a mistake with the "AND" in the condition, maybe a syntax problem ?

I wonder if it is allowed to have an "AND" in the condition, at all ?
According to the doc, yes, as long as the result is of type boolean 0-non zero.
NB: the "AND" in the formula part of the expression works fine.

Any hint ?