Panasonic FP Series User Manual

Bitwise Boolean instructions
543
Part III FP Instructions
F135_BCU
Number of ON bits in 16-bit data
The number of 1 (ON) bits is stored in the 16-bit area specified by d.
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.
PLC types
Availability of F135_BCU (see page 1321)
Variable Data type Function
s ANY16 source
d INT destination area for storing the number of bits in the ON (1)
state
For Relay T/C Register Constant
s - WY WR WL SV EV DT LD FL -
d WX WY WR WL SV EV DT LD FL dec. or hex.
Description
Counts the number of bits in the ON state (1) in the 16-bit data specified by s if the trigger EN is in
the ON-state.
Data types
Operands
Example
In this example the function has been programmed in ladder diagram (LD) and structured text
(ST).The same POU header is used for all programming languages.
POU header
All input and output variables used for programming this function have been declared in the POU
header.
Body
When the variable start is set to TRUE, the function is carried out.
LD
ST
When programming with structured text, enter the following:
IF start THEN
F135_BCU(checked_value1, output_value);
END_IF;

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