BOOL $P_SEARCH
Returns TRUE (1) if block search is active

BOOL $P_SEARCH1
Returns TRUE (1) if block search with calculation is active.

BOOL $P_SEARCH2
Returns TRUE (1) if last selected search type was "block search without calculation".

INT $P_SEARCHL
supplies the last selected search type:
(coding analogous to PI service _N_FINDBL)
0 : No search
1 : Search without calculation
2 : Search with calculation on contour
3 : Reserved
4 : Search with calculation at end of block
5 : Search in extended program test