Lab.gruppen LUCIA Quick Start Manual

LUCIA Serial Dongle - RS-232
Quick Start Guide
General
This section describes general features of the LUCIA RS232
protocol. The LUCIA has the following features:
• Volume control
• Mute control
• DSP Matrix control (and thereby source-selection)
• Status readings
About the hardware
GND, TX and RX
The three connections compounds a regular RS232 interface.
GPO
GPO is directly linked to the Lucia amp's GPO interface
(explained in the Lucia quick start guide).
Preparations
• In order to use the Serial Dongle the Lucia amp must be
updated to software rev:924 or higher.
• In the Lucia Application Browser the control port must be
setup to function RS232.
RS-232 Connection schematic
A RS-232 connection to a LUCIA unit can be established from a
computer via a USB Serial Adapter and a LAB.GRUPPEN Serial
Dongle as sketched below:
Sub-D 9 female Serial Dongle
(Looking at the pins RS-232
Controlling
Pin Signal
Device 5
9
5 GND GND
3 TXD TX
RX
2 RXD
6
GPO
1
Communication Settings
The LUCIA uses 9600 bit/s, 8 databit, no parity and 1 stopbit.
Flow control (software or hardware) are not employed.
Command/Response
All commands/responses are in clear ASCII text and must be
terminated with a <CR> Carriage Return (0x0D).
V2.0.1 09-25-2017
A54-00001-60759
Synchronization
A single <CR> can be used to empty the LUCIA command buff er
to synchronize further communications.
Unknown/Unsupported Commands
If the LUCIA receives an unknown command string, it will
respond with "ERROR UNKNOWN COMMAND".
Visibility and persistence of settings
Parameters set through the RS-232 protocol are added on top
of the persistent settings of the LUCIA as set by the Application
Browser. Thus RS-232 infl icted settings are read with the
available RS-232 status polling commands and are not visible
through the Application Browser. The parameters set through
RS-232 remain when LUCIA enters and exits standby, but
only volume settings for RS-232 control persist when LUCIA
is powered down. Application Browser set settings persist
throughout the power cycle.
Controls
Step output volume up or down
stepvolume [output channels 1 to 4]
Command
[+/- level in dB]<CR>
Adjusts the output volume a number of
steps on the given channels. It is possible
to adjust the volume on multiple output
channels at once by using comma as
Function
separator. The step level range is
description
-100 to 0 dB. When the volume is at
-100 dB the channel is considered muted.
The resolution of the volume control
is 0.5 dB
One channel
Usage
examples
Multiple channels
One channel
Multiple channels
Error in parameters
Returns
Note: The returned volume level is the
resulting volume level.
Note: If multiple outputs are adjusted the
volume levels are only reported for
available outputs.
LUCIA
GPIO Port
Set output volume to a specifi c level
setvolume [output channels 1 to 4]
Command
[level -100 to 0 dB] <CR>
Adjusts the output volume to a specifi c
level for the given channels. It is possible
to adjust the volume on multiple output
Function channels at once by using comma as
description separator. The level range is -100 to 0 dB.
When the volume is at -100 dB the channel
is considered muted. The resolution of the
volume control is 0.5 dB
One channel
Usage
examples
Multiple channels
Returns
Mute/Unmute all outputs
Command
Function
description
Usage
examples
Returns
Set a matrix patch point gain
Command
Function
description
stepvolume 1 -2
stepvolume 1,2 -2
OK STEP VOLUME
CH1:-2
OK STEP VOLUME
Usage
CH1:-4 CH2:-2
examples
ERROR STEP
VOLUME
Returns
Clear matrix and optionally set patch points gain
Command
Function
description
setvolume 1 0
setvolume 1,2 -11.5
OK SET VOLUME
One channel
CH1:0
OK STEP VOLUME
Multiple channels
CH1:-11.5 CH2:-11.5
ERROR STEP
Error in parameters
VOLUME
Note: If multiple outputs are adjusted the
volume levels are only reported for
available outputs.
setmute [state]<CR>
Mutes or unmutes all outputs
Mute all outputs setmute 1
Unmute all outputs setmute 0
Mute all outputs OK MUTE 1
Unmute all outputs OK MUTE 0
Error in outputs ERROR MUTE
setmtx [channel in][channel out]:[gain]...
<CR>
Sets gain for one or more matrix patch
points. A patch point is specifi ed by input
and output channels concatenated without
separator. It is possible to set multiple patch
points in one go (see usage examples). The
gain range is -31 to 0 dB. When gain is at
-31 dB the patch point is considered unset.
The resolution of the set gain is 0.5 dB
Patch in1 to out1 setmtx 11:0
Patch multiple setmtx 11:0
channels 12:-1 22:-2
Unset one patch
setmtx 11:-31
point
Patch in1 to out1 OK SETMTX 11:0
OK SETMTX 11:0
Patch multiple
12:-1 22:-2
Unset one patch point OK SETMTX 11:-31
Error in parameters ERROR SETMTX
clrmtx [channel in][channel out]:[gain]...
<CR>
Clears the matrix (all patch point gains are
set to -31 dB), then sets the gain for one or
more specifi ed patch points. It is possible to
set multiple patch points in one go
(see usage examples). The gain range is
-31 to 0 dB. When gain is at -31 dB the
patch point is considered unset.
The resolution of the gain is 0.5 dB