ICP DAS USA I-87211W User Manual page 32

Note: 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: %0109400600
Response: !09
Sets the address from 01 as 09. The response "!09"
indicates that the command is valid.
Command: $092
Response: !09400600
Success to read the configuration of this module.
Command: %0905400940
Response: ?05
Changes the Baud Rate of module 01 to 57600bps.
The module returns an invalid command because it
is not in INIT* mode.
Command: %0905400940
Response: !05
Changes the Baud Rate of module 01 to 57600bps
and the module returns a valid response.
32/93 I-87211W User Manual V2.5, Oct. 2010
I-87211W User Manual