Advantech Adam - 4021, User Manual, Page: 168 / 286

ADAM-4000 Series User Manual 156
Figure 7.3 Data format for FF (8-bit parameter)
Response AA(cr) if the command is valid.
?AA(cr) if an invalid parameter was entered or the INIT*
terminal was not grounded when changing baud rate or
checksum setting were attempted.
There is no response if the module detects a syntax or
communication error, or even if the specified address does not exist.
! is a delimiter character which indicates a valid command.
? is a delimiter character which indicates an invalid command.
AA (range 00-FF) represents the 2-character hexadecimal
address of the module.
(cr) i s the terminating character, carriage return (0Dh).
Example command: %0120510600(cr)
response: !20(cr)
The ADAM 4080D module is configured by changing
address 01 to a new address 20, choosing frequency
measurement module, assigning 9600 to baud rate, setting
frequency gate time 0.1 second and no checksum checking
or generation.
The response indicates that the command was received.
Wait seven seconds to let the new configuration settings
take effect before you issue a new command to the module.
Table 7.3: Baud Rate Codes
Baud Rate Code (Hex) Baud Rate
03 1200 bps
04 2400 bps
05 4800 bps
06 9600 bps
07 19.2 kbps
08 38.4 kbps