EDAM-4200 Series User’s manual Version 1.03
8.4.51
~AA0
Read watchdog timeout status
Description: Read watchdog timeout status
Command:
~AA0 [CHK](cr)
Syntax:
~
Command leading code
AA
Module address ID (01 to FF , Always 01)
0
command for reading watchdog timeout status
CHK
Check sum
(cr)
Carriage return
Response:
!AASS (cr)
Valid command.
?AA[CHK](cr)
Invalid command
!
Delimiter for valid command
?
Delimiter for invalid command
AA
Module address ID
SS
Two hexadecimal digits that represent the host watchdog status.
bit(7) - Host watchdog enable/disable ,
= 0 - Disable.
= 1 - Enable.
bit(2) - Host watchdog timeout status,
= 0 - indicates that no host watchdog timeout has occurred.
= 1 - indicates that a host watchdog timeout has occurred.
bit(6,5,4,3,1,0) - reserved(always 0)
CHK
Check sum
(cr)
Carriage return
Note:
The host watchdog status is stored in EEPROM and can only be reset by using the ~AA1 command
.
Example 1:
Reads the host watchdog status of module 01 and returns 00, meaning that the host watchdog is
disabled or no host watchdog timeout has occurred.
Command:
~010(cr)
Response:
!0100(cr)
Example 2:
Reads the host watchdog status of module 01 and returns 04, meaning that a host watchdog
timeout has occurred.
Command:
~010(cr)
Response:
!0104(cr)
Ref. command:
~**, ~AA1, ~AA2, ~AA4V, ~AA5V, ~AA3EVVV, ~AA3PPP , ~AA3P
Printed Date: 27 February 2018
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