User Manual

ADAM-6000 Series User Manual 178
$aa7
Name Read DI Channel Status
Description This command requests that the specified module
return the status of its digital input channels.
Syntax $aa7(cr)
$ is a delimiter character.
aa (range 00-FF) represents the 2-character hexadecimal
slave network address of the ADAM-6000 module.
(Always 01)
7 is the Digital Data In command.
(cr) is the terminating character, carriage return (0Dh)
Response !aa(data)(cr) if the command is valid.
?aa(cr) if an invalid operation was entered.
There is no response if the module detects a syntax error or
communication error or if the address does not exist.
! delimiter indicating a valid command was received.
? delimiter indicating the command was invalid.
aa (range 00-FF) represents the 2-character hexadecimal
slave network address of an ADAM-6000 module. (data)
a 2-character hexadecimal value representing the values of
the digital input module.
(cr) is the terminating character, carriage return (0Dh)
Example command: $017(cr)
response: !0101 (cr) The command asks the specific module
at address 01h to return the values of all DI channels.
DI channel 0 is ON and channel 1 is OFF since the return
value is 1 (01b).