Chapter 4 Command Set 4-71
$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 of the analog input module which is to be read.
X represents the setting WDT command.
nnnn (range 0000~9999) represent the specified value of
communication cycle you want to set.
(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 error or
communication error or if the specified address does not exist.
! delimiter character indicates a valid command was received.
? delimiter character indicates 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 set the WDT cycle as 1234 in the input module at
address 02.
NOTICE: If the value of “nnnn” is 0000, the communication WDT
function will be disable.
4015, 4019
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