Dear all
Can anyone explain how to use more than 16 causes for the C&E block? I have 23 causes for one effect in the shutdown matrix.
Regards
Asim
In reply to Alfred Pol:
Alfred offers a valid solution. There are many variants possible that will yield the same result. You could also simply use two C&E blocks and combine their effecst in an OR gate to get the same result.
Another approach might be to group your causes in a logical manner, such that their effect represents that group of causes. Say five causes come from inlet pressures. 6 more come from another related grouping. You might have 3or 4 C&E blocks that feed a final block that combines these "grouped" causes with remaining causes such that the final C&E requires less than the maximum 16 Causes.
By breaking the problem down into several groupings, it might result in a cleaner FB diagram and provide indications for displays and such.
Andre Dicaire