Omron CJ - PROGRAMMING MANUAL 08-2008 Programming Manual page 312

Cycle Time/High-speed Processing
PLC Setup
274
the address will not be output to the index register and will be output to A595
and A596 instead. To store the address in an index register, use a Data Move
instruction (e.g., MOVL(498)) to copy the address in A595 and A596 to an
index register.
■ Conditions Flags
Conditions Flags will not be updated following execution of instructions pro-
cessed in the background. To access the Conditions Flag status, execute an
instruction that affects the Conditions Flags in the same way, as shown in the
following example, and then access the Conditions Flags.
■ Outputting to Index Register IR00
If SRCH(181) is executed to output the I/O memory map address of the word
containing the matching value (the first word if there is more than one) to an
index register, the address will not be output to the index register and will be
output to A595 and A596 instead.
■ Outputting to Data Registers (DR) for SRCH(181)
If SRCH(181) is executed to output the matching data to a data register, the
data will not be output to the data register and will be output to A597 instead.
■ Matching Text Strings
If SRCH(181) finds matching data, it will not turn ON the Equals Flag, but will
turn on A59801 instead.
■ Instruction Errors
If an instruction execution error or illegal access error occurs for an instruction
being processed in the background, the ER or AER Flags will not be turned
ON and A39510 will be turned ON instead. A39510 will remain ON until the
next time an instruction is processed in the background.
■ Outputting to Data Registers (DR) for MAX(182) or MIN(183)
If MAX(182) or MIN(183) is executed with a data register specified as the out-
put word for the minimum or maximum value, an instruction execution error
will occur and the ER Flag will turn ON.
When using the CX-Programmer, make the settings on the CPU Settings Tab
Page.
Section 6-1