Filter
Top Products
314
5-25-13 DATA SEARCH – SRCH(––)
R
1
: First word in range
IR, SR, AR, DM, HR, TC, LR
N: Number of words
IR, SR, AR, DM, HR, TC, LR, #
Ladder Symbols Operand Data Areas
@SRCH(––)
N
R
1
C
C: Comparison data, result word
IR, SR, AR, DM, HR, LR
SRCH(––)
N
R
1
C
Limitations N must be BCD between 0001 to 6656.
R
1
and R
1
+N–1 must be in the same data area.
Description When the execution condition is OFF, SRCH(––) is not executed. When the
execution condition is ON, SRCH(––) searches the range of memory from R
1
to
R
1
+N–1 for addresses that contain the comparison data in C. If one or more ad-
dresses contain the comparison data, the EQ Flag (SR 25506) is turned ON and
the lowest address containing the comparison data is identified in C+1. The ad-
dress is identified differently for the DM area:
1, 2, 3... 1. For an address in the DM area, the word address is written to C+1. For ex-
ample, if the lowest address containing the comparison data is DM 0114,
then #0114 is written in C+1.
2. For an address in another data area, the number of addresses from the be-
ginning of the search is written to C+1. For example, if the lowest address
containing the comparison data is IR 114 and the first word in the search
range is IR 014, then #0100 is written in C+1.
If none of addresses in the range contain the comparison data, the EQ Flag (SR
25506) is turned OFF and C+1 is left unchanged.
Flags ER: Indirectly addressed DM word is non-existent. (Content of DM word is
not BCD, or the DM area boundary has been exceeded.)
N is not BCD between 0001 and 6655.
EQ: ON when the comparison data has been matched in the search range.
Special Instructions Section 5-25