Advantech Data Acquisition Modules ADAM 4000 User Manual
Page 226
Analog Output Module Command Set
6-12 ADAM 4000 Series User’s Manual
$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)
$
is a delimiter character.
AA
(range 00-FF) represents the 2-character hexadecimal
address whose data are to be sent.
1
is the 20 mA Calibration command.
(cr
) is the terminating character, carriage return (0Dh).
Response
!AA(cr)
if the command was valid.
?AA(cr)
if an invalid command was issued.
There is no response if the module detects a syntax or
communication error, or even if the specified address does
not exist.
!
delimiter character indicates that a valid command was
received.
?
delimiter character indicates that the command was
invalid.
AA
(range 00-FF) represents the responding 2-character
hexadecimal address of the analog output module.
(cr)
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.)
4021