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
100
5.3.24 ~AA0

Description :
This function reads the module status, which will be latched until the ~AA1 command is
sent
.
If the module status=0x04, all output commands will be ignored.

Syntax :
~AA0[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

!AASS[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
SS 2-character status value in HEX format as follows:
Bit_0 = reserved
Bit_1 = reserved
Bit_2 = 0

OK,
1

Host watchdog failure
Bit_7 = 1

Host watchdog timer is enabled.
[chk] 2-character checksum. If the checksum is disabled

no [chk]
(CrLf) End Character

Example :
command: ~010(CrLf)
response: !0100(CrLf)
command: ~020(CrLf)
response: !0204(CrLf)
command: ~020(CrLf)
response: !0280(CrLf)
The status of module 01 is OK
The status of module 02 is “host watchdog
failure”

HOST is off-line now
The status of module 02 is ---host watchdog
is running
For: I-7521/I-7522/I-7522A/I-7523/I-7524/I-7527