17
2.6 $AA4
Description:
Reads the synchronized data
Syntax:
$AA4[CHK](cr)
$ delimiter
character
AA address
of
reading/response module (00 to FF)
4
command to read the synchronized data
Response:
Valid Command:
!S(Data)
Invalid Command:
?AA
S
status of synchronized data, 1=first read, 0=been readed
(Data)
synchronized DIO value. See Section 1.10 for data
format.
Example:
Command: $014
Receive: ?01
Read address 01 synchronized data, return no data available.
Command: #**
no response
Send synchronized sampling to all modules.
Command: $014
Receive: !10F0000
Read address 01 synchronized data, return S=1, first read, and
synchronized data 0F00
