Chapter 4 Command Set 4-191
4080, 4080D
Chapter 4
$AA4
Name Read Filter Status
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 of counter/frequency module that you want to interro-
gate.
4 identifies 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 error or
communication error or if the specified address does not exists.
! is a delimiter character indicating the command was valid.
AA (range 00-FF) represents the 2-character hexadecimal
address of a counter input 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
addressed module returns its address to indicate that its digital
filter is disabled.
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