Bcntc - Omron CJ - REFERENCE MANUAL 02-2010 Reference Manual

BCNTC

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 9999 (BCD).
Operand Specifications
Word addresses
Area
CIO WR HR
N
S OK OK OK
R
Flags
Name
Error Flag
Equals Flag
Note In C-series PLCs, the BIT COUNTER (BITC) instruction will cause the Error Flag to go ON if the content of an indirectly
addressed DM word (*DM) is not BCD, or the DM area boundary is exceeded. BCNTC(621) will not cause the Error Flag
to go ON in these cases.
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Mnemonic Variations
BCNTC @BCNTC
Block program areas Step program areas
OK OK
Description
Indirect DM/EM
@DM
AR T C DM EM
@EM
OK OK OK OK OK OK
Label
P_ER • ON if N is not within the range 0001 to 9999 BCD.
• ON if result exceeds 9999 BCD.
• OFF in all other cases.
P_EQ • ON if the result is 0000.
• OFF in all other cases.
Function
code
Counts the total number of ON bits in the specified
621
word(s).
BCNTC
BCNTC(621)
N: Number of words
N
S S: First source word
R R: Result word
Subroutines
OK
Data type
WORD
UNIT
WORD
Registers
addresses
Con-
stants
*DM
DR
*EM
OK OK
OK ---
---
OK
Operation
3. Instructions
Function
SFC action or
Interrupt tasks
transition programs
OK OK
Size
1
Variable
1
Flags
Pulse
bits
Indirect
IR TK CF
using IR
--- --- --- ---
OK
3
TR
bits
---
1109