Rockwell Automation D64046.5.1 U MNL WIN DDMC - Manual (Page 66)

Configuring SDS Instructions
Chapter 4
4-30
Important: Since it is concerned with state only, the NOT function is
used to negate the state associated with that particular input. For example:
!1&4 means that if the state in equation 1 is NOT true AND the state in
equation 4 is true, then proceed to the destination step.
The system displays the operator in the window on the lower left corner of
the screen, next to the input, forming your equation as you continue.
Important: The following procedure is another method by which you
can AND your inputs. From the Equation Edit screen:
Press [F1] - Select Input to select the first input of your
equation.
Press [F1] - Select Input again to select your second input.
Using this method, the AND is automatically placed between your inputs.
5. Continue selecting inputs and operands until your equation is complete.
The following conditions apply to every equation you enter:
If you want to use a single input in more than one equation within a
single step, you need to duplicate it in the I/O Defines on the I/O
Definition screen.
Inputs do not have to be contiguous. The order in which each input
occurs or goes true is not significant as long as the Boolean expression
is fulfilled.
More than one expression can be entered and mixed with transitions to
create logical OR functions.
Up to four logical AND combinations can be defined in an 8 input SDS,
which would be the equivalent Boolean of A+B or C+D or E+F or
X+Y. Up to eight AND conditions can be defined for a 16 or 32 I/O
SDS.
6. When you have finished entering your equation, press
[F10] - Accept Equation.