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4.22 Read latched digital input
Modules:
For 9041,9044,9050,9052,9053,9060,9063X,9065X
Description:
Read latched digital input
Command:
$AALS[CHK](cr)
Syntax:
Response:
(see Note)\
$
Command leading code
AA
Module address ID (00 to FF)
L
Command for reading latched digital input
S
=1 latched high status
=0 latched low status
CHK
Check sum
(cr)
Carriage return
!HHLL[CHK](cr)
Valid command
?AA[CHK](cr)
Invalid command
!
Delimiter for valid command
?
Delimiter for invalid command
HH
High byte Latched input status
LL
Low byte latched input status
00
Always be 00
CHK
Check sum
(cr)
Carriage return
Example: Read latched input status of module address ID=30
Command: $30L1<CR>
Response: !012300<CR>
! Command is valid.,
High byte latched status(D8~D15)=01
Low byte latched status(D0~D7)=23
Example: Clear latched input status of module address ID=30
Command: $30C<CR>
Response: !30<CR>
! Command is valid., and clear latched input status
Example: Read latched input status of module address ID=30
Command: $30L1<CR>
Response: !000000<CR>
! Command is valid.,
High byte latched status(D8~D15)=00
Low byte latched status(D0~D7)=00
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