ICP DAS USA M-7026, User Manual

Page: 35 / 185

M-7026
M-7026 User Manual Rev: 1.5 Date: 2016/03/10
35
2.4 #AAN
Description:
This command is used to read data from Analog Input channel N of a specified
module.
Syntax:
#AAN[CHKSUM](CR)
#
Delimiter character
AA The address of the module to be read in hexadecimal format (00 to
FF)
N The Analog Input channel to be read, zero based (0-5)
Response:
Valid Command: >(Data)[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)
(Data) The data from the specified Analog Input channel. See Section 1.9.4
for details of the data format.
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.
Examples:
Command: #032 Response: >+025.13
Reads data from Analog Input channel 2 of module 03 and returns a
response indicating that the command was successful, and that the
Analog Input value is +025.13 (+25.13 mV).
Command: #02F Response: ?02
Attempts to read data from Analog Input channel 15 of module 02, but
returns a response indicating that the command was unsuccessful
because channel 15 does not exist.
Related Commands:
Section 2.1 %AANNTTCCFF, Section 2.3 #AA, Section 2.10 $AA2, Section
2.18 $AA7CiRrr
Related Topics:
Section 1.9.4 Analog Input Type Codes and Data Format