Advantech Data Acquisition Modules ADAM 4000 User Manual page 226

4021
$AA1
Name 20 mA Calibration command
Description Stores the current output value of the addressed analog
output module as 20 mA reference.
Syntax $AA1(cr)
$
AA
address whose data are to be sent.
1
(cr) is the terminating character, carriage return (0Dh).
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)
6-12 ADAM 4000 Series User's Manual
is a delimiter character.
(range 00-FF) represents the 2-character hexadecimal
is the 20 mA Calibration command.
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 20 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.)
Analog Output Module Command Set