3
Using the commands
The MTX has 3 communication ports which all accept the same commands:
- RS232 port
- RS485 ports
-
TCP/IP
The RS232/RS485 ports must be configured with 19200 baud, 8 data bits, 1 stop bit, no
parity
The TCP/IP port accepts command’s at port 5001. The MTX accepts maximum 1
simultaneous TCP/IP connection.
Command overview
Startsymbol
|
destination
|
source
|
command
|
argument’s
|
checksum
|
stopsymbol
Example: Set volume zone 1 to -30dB
ASCII
#
|
X001
|
web
|
SV1
|
30
|
U
|
return
Important:
- The address of the MTX is fixed at X001.
- The checksum is CRC-16 excluding the ‘#’. You can replace the checksum with
‘U’, this is always accepted as checksum.
- return = 0x0d 0x0a
- source address has a maximum length of 4 characters and cannot contain “|” or
“#”
Command flow
1) The client sends a command to the MTX
2) The MTX acknowledges the command by returning the same command and a ‘+’ as
Argument.
3) The MTX updates all client’s with the new information
All volume, routing and tone settings will be lost if the device is switched off. To keep
the changes you must save them with the “SAVE” command. All device settings that are
configured through the configuration page of the website are saved automatically with
every change.
