Det-Tronics S3 Graphics - Manual (Page 283)

13-58 EQP LOGIC EDITOR
Version 6.0
EQP LOGIC EDITOR
Once the controller is set as a “SIL Controller” and a SIL device is chosen, the screen should look similar to that 3.
of the figure below. If a devices’ name is not in red text, then the project is not SIL 2 compliant, this is also true
for the controller.
If there is difficulty reading red text on a black background, it is possible to change the background color by click-
ing the “Point Color” button as seen on the example screen above.
SIL Logic
The “Premier Logic Editor” within S 3 is designed to make life easy for the user to create and determine if a logic
program complies with SIL 2. The program or custom function block will comply with SIL 2 if all the logics in the
program are red, with the exception of the connecting paths, comments and user defined functions. Custom
user defined functions are always in black regardless whether the function is SIL 2 compliant or not. If the plan is
to include a user defined function block
in a SIL 2 program, it must be manually
verified as SIL 2 compliant. The figure
to the left, and on the following page
display some examples of SIL 2 and
non-SIL 2 logic.
SIL 2 LOGIC
SIL 2 compliant. Everything is red.