Advantech Adam - 4021, User Manual, Page: 184 / 286

ADAM-4000 Series User Manual 172
The command orders the counter/frequency module at
address 03 to disable its digital filter. The module returns
its address indicating that it has executed the command successfully.
4080
7.2.3.2 $AA4
Name Read Filter Status command
Description Read the digital filter status of the addressed counter/
frequency module.
Syntax $AA4(cr)
$
is a delimiter character.
AA (range 00-FF) represents the 2-character hexadecimal
address that you will access to.
4 is the Read Filter Status command.
(cr) is the terminating character, carriage return (0Dh).
Response !AAS(cr) if the command is valid.
There is no response if the module detects a syntax or
communication error, or even if the specified address does not exist.
! is a delimiter character which indicates an invalid command.
AA (range 00-FF) represents the 2-character hexadecimal
address of the module.
S is the digital filter mode.
S = 0 means filter is disabled
S = 1 means filter is enabled
(cr)
is the terminating character, carriage return (0Dh).
Example
command: $034(cr)
response: !030(cr)
The command requests the counter/frequency module at
address 03 to return whether its digital filter is ON or not.
The module returns its address which indicates that its
digital filter is disabled.