ICP DAS USA I-87211W User Manual page 50

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: $012
Response: !01400A00
Reads the configuration of module 01.
BaudRate: 115200, Checksum: Disabled.
Command: $052
Response: !05400940
Reads the configuration of module 05.
BaudRate: 57600, Checksum: Enabled.
Related Commands:
Section 1.9 Configuration Table
Section 2.1 %AANNTTCCFF
50/93 I-87211W User Manual V2.5, Oct. 2010
I-87211W User Manual