ADAM-4000 Series User Manual 196
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 settings 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 received valid command.
? is a delimiter character which indicates an invalid command.
AA (range 00-FF) represents the 2-character hexadecimal
address of a digital I/O module.
(cr) is the terminating character, carriage return (0Dh).
Example command: %2324400600(cr)
response: !24(cr)
The command tries to configure module by changing
address 23h to address 24h, assigning baud rate 9600,
setting no checksum checking and supporting Advantech protocol.
The response indicates that the configuration was successful.
Table 7.1: 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
09 57.6 kbps
0A 115.2 kbps
Note! All configuration parameters can be changed dynamically, except
checksum and baud rate parameters. They can only be altered when
the INIT* terminal is grounded. (Please Refer to Baud rate and Check-
sum, in Chapter 2 for the correct procedure.)
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