Advantech Data Acquisition Modules ADAM 4000 User Manual page 225

4021
$AA0
Name 4 mA Calibration command
Description Stores the current output value 4 mA for reference in the
specified address in analog output module.
Syntax $AA0(cr)
$
AA
address whose data are to be sent.
0
(cr)
Response !AA(cr)
?AA(cr)
There is no response if the module detects a syntax or
communication error, or even if the specified address does
not exist.
!
received.
?
invalid.
AA
hexadecimal address of the analog output module.
(cr)
6-11 ADAM 4000 Series User's Manual
is a delimiter character.
(range 00-FF) represents the 2-character hexadecimal
is the 4 mA Calibration command.
is the terminating character, carriage return (0Dh).
if the command was valid.
if an invalid command was issued.
delimiter character indicates that a valid command was
delimiter character indicates that the command was
(range 00-FF) represents the responding 2-character
is the terminating character, carriage return (0Dh).
Before issuing the 4 mA Calibration command, the analog
output module should be trimmed to the correct value with
the Trim Calibration command. A millimeter or a resistor
and voltmeter should be connected to the module's output.
(Please refer to the analog output module's Trim
Calibration command and Chapter 8, Calibration, for a
detailed description.)
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Chapter