585
Table Data Processing Instructions Section 3-16
Note C and C+1 must be in the same data area.
R1: First word in range
R1 specifies the first word in the search range. The words from R1 to R1+(C–
1) are searched for the desired data. (C is the number of words set in C.)
Note R1 and R1+C–1 must be in the same data area.
Operand Specifications
Description SRCH(181) searches the range of memory from R1 to R1+C–1 for words that
contain the comparison data (Cd). If a match is found, SRCH(181) writes the
PLC memory address of the word to IR0 and turns the Equals Flag ON.
(If there are two or more matches, just the address of the first word containing
the comparison data is written to IR0.)
When bit 15 of C+1 has been set to 1, SRCH(181) writes the number of
matches to DR0. When bit 15 of C+1 is 0, DR0 is left unchanged.
R1
R1+(C–1)
15 0
---to
Search range
Area C R1 Cd
CIO Area CIO 0 to
CIO 6142
CIO 0 to CIO 6143
Work Area W0 to W510 W0 to W511
Holding Bit Area H0 to H510 H0 to H511
Auxiliary Bit Area A0 to A958 A0 to A959
Timer Area T0000 to T4094 T0000 to T4095
Counter Area C0000 to C4094 C0000 to C4095
DM Area D0 to D32766 D0 to D32767
Indirect DM addresses
in binary
@ D0 to @ D32767
Indirect DM addresses
in BCD
*D0 to *D32767
Constants Specified values
only
--- #0000 to #FFFF
(binary)
Data Registers --- DR0 to DR15
Index Registers ---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
R1+(C–1)
C
R1 Search
Match
Cd
PLC memory
address
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