ICP DAS USA M-7026, User Manual

Page: 48 / 185

M-7026
M-7026 User Manual Rev: 1.5 Date: 2016/03/10
48
2.11 $AA3NVV
Description:
This command is used to trim the calibration for Analog Output channel N of a
specified module.
Syntax:
$AA3NVV[CHKSUM](CR)
$
Delimiter character
AA The address of the module to be trimmed in hexadecimal format (00
to FF)
3 The command to trim the calibration
N The Analog Output channel to be trimmed, zero based (0-1)
VV A two-digit hexadecimal value representing the trim calibration. Use
00 to 5F to increase the voltage in increments from 0 to 95, and use
FF to A1 to decrease the voltage in increments from 1 to 95.
Response:
Valid Command: !AA[CHKSUM](CR)
Invalid Command: ?AA[CHKSUM](CR)
! Delimiter character to indicate a valid command
? Delimiter character to indicate an invalid command
AA The address of the responding module in hexadecimal format (00 to
FF)
There will be no response if the command syntax is incorrect, there is a
communication error, or there is no module with the specified address.
Note:
The “enable calibration” command, ~AAEV (see Section 2.47), must be sent
before this command is used. See Section 1.8.2 for details.
Examples:
Command: ~01E1 Response: !01
Enables calibration on module 01 and returns a response indicating that
the command was successful.
Command: $01301F Response: !01
Increases the voltage for Analog Output channel 0 of module 01 to by an
increment of 1F (31) and returns a response indicating that the command
was successful.
Command: $013060 Response: ?01
Attempts to increase the voltage for Analog Output channel 0 of module
01 by an increment of 60 (96), but returns a response indicating that the
command was unsuccessful because the increment value is not within
the valid range.