ICP DAS USA I-7521, Руководство пользователя

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I-7521/I-7522/I-7522A/I-7523/I-7524/I-7527 User’s Manual,Ver2.5 Aug.2015
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5.3.18 $AA4

Description :
This function reads the synchronized data.

Syntax :
$AA4[chk](CrLf)
$
Delimiter character
AA 2-character module address in HEX format. The valid range is from 00
to FF
[chk] 2-character checksum. If the checksum is disabled

no [chk]
(CrLf) End Character

Response : valid command

!AASV[chk](CrLf)
invalid command

?AA[chk](CrLf)
no response

syntax error, communication error, or address error
! Delimiter character indicating a valid command
? Delimiter character indicating an invalid command
AA 2-character module address in HEX format
S=1 first reading,
S=0 not the first reading
V D0=DI1, D1=DI2, D2=DI3, D3=DI4, D4=DI5
[chk] 2-character checksum. If the checksum is disabled

no [chk]
(CrLf) End Character

Example : (Assume the AA address value of the I-7521 module is 01)
command: #**(CrLf)
response: no response
command: $014(CrLf)
response: !0117(CrLf)
command: $014(CrLf)
response: !0113(CrLf)
DI1=DI2=DI3=1
DI1=DI2=1, DI3=0
Orders all modules to perform synchronized
sampling
For: I-7521/I-7522/I-7522A/I-7523/I-7524/I-7527