Chapter 4
Chapter 4 Command Set
4-23
4.4.13
$AAXnnnn
Name Watchdog Timer Setting
Description This command set the Watchdog Timer communication
cycle.
Syntax $AAXnnnn(cr)
$ is a delimiter character.
AA (range 00-FF) represents the 2-character hexadecimal
address which is to be read.
X represents the setting of WDT command.
nnnn (range 0000~9999) represents the specified value of
communication cycle.
(cr) is the terminating character, carriage return (0Dh).
Response !AA(cr) if the command was valid.
?AA(cr) if an invalid operation was entered.
There is no response if the module detects a syntax or
communication error, or even if the specified address does
not exist.
! is a delimiter character indicating that a valid command
was received.
? is a delimiter character indicating that the command was
invalid.
AA (range 00-FF) represents the 2-character hexadecimal
address of the analog input module.
(cr) represents terminating character, carriage return (0Dh).
Example command: $02X1234(cr)
response: !02(cr)
The command sets the WDT cycle as 1234 from address 02
of the input module.
NOTICE: If the value of “nnnn” is 0000, the communication WDT
function will be disabled.
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