3. Instructions
244
CS/CJ/NSJ Series Instructions Reference Manual (W474)
CNT/CNTX
Applicable Program Areas
Operands
N: Counter Number
The counter number must be between 0000 and 4095 (decimal).
S: Set Value
BCD: #0000 to #9999
Binary: &0 to &65535 (decimal) or #0000 to #FFFF (hex)
z Operand Specifications
Flags
Note In CS1D CPU Units for Duplex Systems, CS1 CPU Units, and CJ1 CPU Units, these are turned OFF.
Instruction Mnemonic Variations
Function
code
Function
COUNTER CNT/CNTX --- 546
CNT/CNTX(546) operates a decrementing
counter.
Symbol
CNT CNTX
BCD Binary
Area
Function block
definitions
Block program areas Step program areas Subroutines Interrupt tasks
SFC action or transition
programs
Usage OK Not allowed OK OK OK OK
Operand Description
Data type
Size
CNT CNTX
N Counter Number COUNTER COUNTER 1
S Set Value WORD UINT 1
Area
Word addresses
Indirect DM/EM
addresses
Con-
stants
Registers Flags
Pulse
bits
TR
bits
CIO WR HR AR T C DM EM
@DM
@EM
*DM
*EM
DR IR
Indirect
using IR
TK CF
N --- --- --- --- ---
OK
--- --- --- --- --- ---
--- OK --- --- --- ---
S OKOKOKOKOK OKOK OK OK OK OK
Name Label Operation
Error Flag P_ER • ON if N is indirectly addressed through an Index Register but the address in the Index Register is not
the address of a counter Completion Flag or counter PV.
• ON if in BCD mode and S does not contain BCD data.
• OFF in all other cases.
Equals Flag P_EQ Unchanged (See note.)
Negative Flag P_N Unchanged (See note.)
CNT
N
S
Count input
Reset input
N: Counter number
S: Set value
CNTX(548)
N
S
Count input
Reset input
N: Counter number
S: Set value
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