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Each instruction has at least a command and an attribute. In many cases, extra values are
necessary, such as a numeric or binary value. Instructions always have to be ended with
<CR>, carriage return. No space between the last character of the instruction and the <CR>.
Instructions are not case sensitive!
The 4 possible commands are: SET, GET, INC and DEC. With the INC and DEC command, a
“step value” can be specified. This needs to be a positive number between 1 and 10. A step
value higher than 10, will result in a step value of 10. If no value is specified, default value 1 will
be used. This means that with every INC or DEC command, the value will increase or decrease
by 1 step.
Example: the master level is -50 and the following instruction is sent:
INC MASTER<CR> (you want to turn up the master volume by 1 step)
The master level now will be -49. Now the next instruction is sent:
DEC MASTER 8<CR> (you want to turn down the master volume by 8 steps at once)
The master level is now set to -57 because the unit has decreased the master level by 8 steps
as requested. The unit will reply via RS232: MASTER -57 (with VALFB on, and provided that
the value has been changed) or “Instruction executed!” (with VALFB off). When you send the
instruction: “SET MASTER -99<CR>”, the unit will set the master level to “OFF” and will reply:
“MASTER OFF”, because the lowest possible master level is -80. Since the requested level is
below the lowest possible level value, the unit will set the master level to the OFF (mute) position.
From here, commands will be shown between “…”, and the <CR> or carriage return is omitted
in the text for clarity.
Below is a list with all possible commands and attributes. Possible commands are SET, GET,
INC, DEC. When SET is used, a value needs to be specified. This can be a numeric value or a
binary value (ON or OFF). When INC or DEC is used, and no value is specified, the default
step value 1 is used. Valid values ranging from 1 to 10 can be specified when using INC or
DEC commands. When using the “SET” command, you can specify a value within the range
of possible values, for example, you want to set the master level to -45dB without knowing the
actual level : the command looks like this : “SET MASTER -45”
Not all possible commands require a value. If a value is necessary (or optional), it will be
mentioned. Please note that all audio related parameters that have been edited, will be lost after
cycling the power, unless the instruction “SET STORE ON” is sent.
LEVEL
: here you can set the level of the channels relative to each other, it is advised to leave
this parameter set to 0, unless you want to decrease the level of the subwoofer by for example 3
dB. In this case the command looks like this: “SET LEVEL SUB -3”
Please note that this parameter will NOT change if the MAXLEVEL is set to a value lower than the
LEVEL value.
MAXLEVEL
: here you can specify the maximum level for each channel individually. Possible
commands are SET, GET, INC, DEC. Please note that the lowest LEVEL or MAXLEVEL parameter
will be used. As a consequence, when MAXLEVEL value is lower than LEVEL value, the LEVEL will
change to the value of MAX LEVEL.
