Bcnt - Omron CJ - INSTRUCTIONS Reference Manual

BCNT

Instruction
BIT COUNTER
Symbol
Applicable Program Areas
Function block
Area
definitions
Usage OK
Operands
Operand
N Number of words
S First source word
R Result word
N: Number of words
The number of words must be 0001 to FFFF (1 to 65,535 words).
Operand Specifications
Area
CIO WR HR
N
S OK OK OK
R
Flags
Name
Error Flag
Equals Flag
Function
BCNT(067) counts the total number of bits that are
ON in all words between S and S+(N-1) and places
the result in R.
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Mnemonic Variations
BCNT @BCNT
Block program areas Step program areas
OK OK
Description
Word addresses
AR T C DM EM
OK OK OK OK OK
Label
ER • ON if N is 0000.
• ON if result exceeds FFFF.
• OFF in all other cases.
= • ON if the result is 0000.
• OFF in all other cases.
Function
code
Counts the total number of ON bits in the specified
067
word(s).
BCNT
BCNT(067)
N
N: Number of words
S S: First source word
R: Result word
R
Subroutines
OK
Data type
UINT
UINT
UINT
Indirect DM/EM
addresses
Con-
stants
@DM *DM
DR
@EM *EM
OK OK
OK OK ---
---
OK
Operation
to
S+(N–1)
T
3. Instructions
Function
SFC action or
Interrupt tasks
transition programs
OK OK
Size
1
Variable
1
Registers Flags
Pulse
bits
Indirect
IR TK CF
using IR
--- OK --- --- ---
N words
Counts the number
of ON bits.
Binary result
R
3
TR
bits
---
465