ICP DAS USA I-87211W User Manual page 65

2.18 @AA
Description:
The command is used to read the status of the digital
input/output ports.
Syntax:
@AA[CHKSUM](CR)
@ Delimiter character
AA Address of the module in hexadecimal format (00
to FF)
Response:
Valid Command:
Invalid Command:
> Delimiter for a valid command.
? Delimiter for an invalid command.
AA Address of the module in hexadecimal format (00
to FF)
(Data) The status of the digital input/output ports as a
four-digit hexadecimal value
The highest byte represents Digital Output and
the last byte is reserved
There will be no response if the command syntax is incorrect,
there is a communication error, or there is no module with the
specified address.
>(Data)[CHKSUM](CR)
?AA[CHKSUM](CR)
65/93 I-87211W User Manual V2.5, Oct. 2010
I-87211W User Manual