ICP DAS USA I-7521, User Manual

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I-7521/I-7522/I-7522A/I-7523/I-7524/I-7527 User’s Manual,Ver2.5 Aug.2015
110
5.3.31 $AAL[data]

Description :
This function will write data to the expansion board DO 0/1/2/3
Note: Supported by the firmware version 3.01 and upward.

Syntax :
$AALbbbb[chk](CrLf)
$AALcb[chk](CrLf)
$AALh[chk](CrLf)
$ Delimiter character
AA 2-character module address in HEX format. The valid range is from
00 to FF
0 1 2 3
b Set to On Set to Off
c DO0(pin25) DO1(pin26) DO2(pin27) DO3(pin28)
Pin assignment refers to Sec.1.4
h 4-bit DO value in HEX format. DO0 is at LSB. The valid values are 0~9,
a~f and A~F.
[chk]
2-character checksum. If the checksum is disabled

no [chk]
(CrLf) End Character

Response: valid command

!AA[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
[chk] 2-character checksum. If the checksum is disabled

no [chk]
(CrLf) End Character

Example: (Assume the AA address value of the I-7522A module is 01)
command: $01L1000(CrLf)
response: !01 (CrLf)
command: $01L21(CrLf)
response: !01 (CrLf)
command: $01L30(CrLf)
response: !01 (CrLf)
command: $01LE(CrLf)
response: !01 (CrLf)
For: I-7522A
Sets DO3=ON, DO2, DO1, DO0=0
Sets DO2=ON, other DOn values are
unchanged.
Sets DO3=OFF, other DOn values are
unchanged.
Sets DO0=OFF, DO1, DO2, DO3=ON