Advantech Data Acquisition Modules ADAM 4000 User Manual
Page 257
Digital I/O and Relay Output
Counter/Frequency Command Set
7-22 ADAM 4000 Series User’s Manual
$AAX2
Name
Read Safety Flag command
Description Requests the Safety Flag of the addressed 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 that you will access to.
X2
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 which indicates a valid command.
?
is a delimiter character which indicates an invalid
command.
(cr)
is the terminating character, carriage return (ODh).
4055, 4056S, 4056SO,
4060, 4068, 4069