3. Instructions
1042
CS/CJ/NSJ Series Instructions Reference Manual (W474)
WDT
Applicable Program Areas
Operands
T: Timer setting
Specifies the watchdog timer setting between 0000 and 0F9F hexadecimal or between &0000 and
&3999 decimal.
z Operand Specifications
Flags
Related PLC Setup Settings
z CX-Programmer settings
Instruction Mnemonic Variations
Function
code
Function
EXTEND MAXIMUM
CYCLE TIME
WDT @WDT 094
Extends the maximum cycle time, but only for the cycle
in which the instruction is executed. WDT(094) can be
used to prevent errors for long cycle times when a
longer cycle time is temporarily required for special
processing.
Symbol
WDT
Area
Function block
definitions
Block program areas Step program areas Subroutines Interrupt tasks
SFC action or transition
programs
Usage OK Ok OK OK OK OK
Operand Description Data type Size
T Timer setting Constants only 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
T --- --- --- --- --- --- --- --- --- --- OK --- --- --- --- --- --- ---
Operand Description Data type
Error Flag ER • ON if the watchdog timer setting exceeds 40 seconds.
• OFF in all other cases.
T: Timer setting
WDT(094)
T
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