Panasonic FP Series Programming Manual page 563

Hide thumbs Also See for FP Series:

Table of Contents

Bit-shift instructions

The function shifts the value at output d to the right. The number of bits at output d to be shifted to

the right is specified by the value assigned at input n. This shift can lie between 0 and 255 (only the

lower value byte of n is effective). Bits cleared because of the shift become 0. When input n = 0, no

shift takes place. A shifting distance larger than 32 does not make sense, since when n = 32 the

value at output d is already filled with zeros. The bit at position n - 1 (the last bit shifted out to the

right) is simultaneously stored in special internal relay R9009 (carry flag) so that it can be evaluated

accordingly. When n = 0 the content of the carry flag does not change.

The [n bits] are filled with 0s

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 F102_DSHR (see page 1320)

In this example, the same POU header is used for all programming languages. For an example

using IL (instruction list), please refer to the online help.

Right shift of 32-bit data in bit units

number of bits to be shifted (range: 16#0 to 16#FF)

32-bit area to be shifted to the right

for an instant

The data in the nth bit

is transferred to R9009

(carry flag)

 the bit at position n - 1 has the value 1.

dec. or hex.