Panasonic FP Series Programming Manual page 500

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Shifts in data to the smallest address of the specified data table and compresses the data in the

table toward the higher address. The data in the table specified by d1 and d2 is rearranged as

Data specified by s is shifted in to the area specified by d1 (starting address).

Non-zero data is shifted (compressed) in sequential order, in the direction of the higher address in

the specified range.

Starting area d1 and ending area d2 should be the same type of operand.

Be sure to specify d1 and d2 with "d1  d2".

If the content of s is "0", only a compressed shift is carried out.

This instruction also exists as a P instruction (for FP2/2SH, FP3/5, FP10/10SH PLC types), which

is only executed at the rising edge of the EN trigger. Select [Insert P instruction] from the

"Instructions" pane if you require a P instruction. To facilitate reuse, the instruction then appears

under "Recently used" in the pop-up menu. Press <Ctrl>+<Shift>+<v> within the programming

area to open the list of recently used elements.

Availability of F99_CMPW (see page 1326)

For an example on how to construct a FIFO buffer using F/P99 and F/P98, see

Example 2 from F/P98.

Data table shift-in and compress

data to be shifted in

starting address of area that is compressed into which

data from s is shifted

end address of area where data is compressed

Arithmetic instructions

dec. or hex.