ICP DAS, ZT-2017 and ZT-2017C AI Series User Manual, Version 1.0.1
Page 65
Copyright © 2012 by ICP DAS Co., Ltd. All Rights Reserved.
6.2.20
~AA2
Description
This command is used to read the Host Watchdog timeout value for a specified
module.
Syntax
~
AA2[CHECKSUM](CR)
~
Delimiter character
AA
The address of the module to be read in hexadecimal format (00 to FF)
2
The command to read the Host Watchdog timeout value
Response
Valid Command
!AAEVV[CHECKSUM](CR)
Invalid Command
?AA[CHECKSUM](CR)
!
Delimiter character to indicate a valid command
?
Delimiter character to indicate an invalid command
AA
The address of the responding module in hexadecimal format (00 to FF)
E
The status of the Host Watchdog
0: The Host Watchdog is disabled
1: The Host Watchdog is enabled
VV
Two hexadecimal digits to represent the timeout value in tenths of a
second. For example, 01 denotes 0.1 seconds and FF denotes 25.5
seconds.
There will be no response if the command syntax is incorrect, there is a
communication error, or there is no module with the specified address.
Example
Command
~
032
Response !031FF
Reads the Host Watchdog timeout value for module 03 and returns a response
indicating that the command was successful, with a value of 1FF, which denotes
that the Host Watchdog is enabled and the Host Watchdog timeout value is 25.5
seconds.
