Advantech ADAM 4100, User Manual, Page: 85 / 155

Chapter
4
Chapter 4 Command Set 4-45
4.6.7
$AAX2
Name
Read Safety Flag
Description
Requests the Safty Flag of the digital I/O
module to see whether the safety value has
been executed since Write Safety Value command was
set.
Syntax
$AAX2(cr)
$ is a delimiter character.
AA (range 00-FF) represents the 2-character
hexadecimal address which is to be accessed.
X0 is the read safety flag command.
Response
!XX (cr) if the command is valid.
XX is two-hexadecimal character – (00: OFF, 01: ON)
?AA(cr) if an invalid command has been issued.
! is a delimiter character indicating that a valid command was
received
? is a delimiter character indicating that the
command was invalid
(cr) is the terminating character, carriage return (ODh).