Panasonic FP Series User Manual

Bit-shift instructions
96
Part II IEC Instructions
SHL
Shift bits to the left
To add an enable input and enable output to the instruction, select [With EN/ENO] from the
"Instructions" pane (LD, FBD or IL editor). To reuse an instruction select "Recently used" from the
context menu or press <Ctrl>+<Shift>+<v> in the programming window.
Bit shift to the left, zero-filled on right:
00
·········
D
15 1211 8 7 4 3 0
·· ·· ·· ··
D
15 1211 8 7 4 3
0
0
0
Source register
Target register
(n = 4 bits)
Bit position
Bit position
n bits starting from bit position
0 are filled with 0s.
PLC types
Availability of SHL (see page 1330)
Data type I/O Function
1st input input value
2nd input number of bits by which the input value is shifted to the left
ANY_BIT
output as input result
 If the second input variable N (the number of bits to be shifted) is of
the data type DWORD, then only the lower 16 bits are taken into
account.
 The number of steps may vary depending on the PLC and parameters
used, see also Table of Code Intensive Instructions in the online help.
Description
SHL shifts a bit value by a defined number of positions (N) to the left and fills the vacant positions
with zeros.
Data types
Example
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.
POU header
All input and output variables used for programming this function have been declared in the POU
header.
This example uses variables. You can also use a constant for the input variable.

Panasonic FP Series Specifications

General

Mounting	DIN rail
Type	PLC
Communication Interface	RS-232, RS-485, Ethernet (depending on model)
Input Voltage	100-240V AC or 24V DC (depending on model)
Output Type	Relay, Transistor
I/O Points	Varies by model
Operating Temperature	0°C to 55°C
Dimensions	Varies by model
Weight	Varies by model