ICP DAS USA I-7080, Руководство пользователя

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I-7080, I-7080D, I-7080B, I7080BD User Manual (V 2.2) ------------------ 50
2.26 $AA7N
Description
: Read the overflow flag of counter. The user can use
$AA6S comand to reset counter & clear overflow flag.
Syntax
: $AA7N[chk](cr)
$ is a delimiter character
AA=2-character HEX module address, from 00 to FF
N=0
counter 0
1 counter 1
[chk]=2-character checksum, if checksum disable no [chk]
(cr)=0x0D
Response
: valid command !AAS[chk](cr)
invalid command ?AA[chk](cr)
no response syntax error or communication
error or address error
! is a delimiter character indicating a valid command
? is a delimiter character indicating a invalid command
AA=2-character HEX module address
S=0
no overflow
1 is overflow
[chk]=2-character checksum, if checksum disable no [chk]
(cr)=0x0D
Example
:
command: $0170(cr)
response : !011(cr)
command: $0160(cr)
response : !01(cr)
command: $0171(cr)
response : !010(cr)
Counter 0 is overflow.
Clear the overflow flag.
Counter 1 is OK.
7080/7080D