STUDIO SC USER GUIDE
Synchronization of the Desk with MIDI Signal
All the Studio desks can be driven by using an external device, which can provide a MIDI,
signal (i.e. a sequencer or keyboard). A MIDI signal is a digital protocol designed to allow
Musical Instruments to communicate. It is used frequently in lighting by remote control. It
connects via a 5 pin DIN connector.
First of all the work channel must be set: the Midi protocol allows 16 channels (from 1 to
16) to be used. To set the right channel we must use the Settings dip-switch placed on
the rear side panel of the Studio. In the case of more desks controlled by a Midi device,
just select a different channel for each desk.
The MIDI INPUT information the desks receives is:
• NOTE ON: the range 36-59 identify the channels from 1 to 24 to be switched on (it can
be used even with the double preset mode); while VELOCITY is used to set the light
output level;
• NOTE OFF: the range 36-59 identify the channels from 1 to 24 to be switched off;
• PROG CHG: the range 0-23 select the registers;
• ALL CHANNEL OFF: is used to switch off all the channels. The instruction is
CONTROL CHANGE 7Bh 0h;
• BANK SEL: is used to select the current page. The instruction is CONTROL CHANGE
0h followed by a number 0 to 23 (page 1 to 24).
There is the possibility to control more than one desk via Midi simply using a Studio desk
like a Master and all the others as a Slave. There are no special settings to do on the
Master desk, just plug the Midi cable and play. In this case the Slave desks must be set
on Midi Channel 1.
The MIDI OUTPUT information sent from the desk is:
• PROG CHG: is used to change a register on the Slave desk every time you push a
register button on the Master desk;
• BANK SEL: is used to change a page on the Slave desk every time you select a page
on the Master desk.
WARNING: the register buttons must be set in SELECTOR or ON/OFF mode when the
desk is controlled via Midi. Furthermore, the only way to run Scanner Programs via Midi
is assigning them to the Memory Registers.
SGM Light Technology 12/12/2000 Ver. 2.04
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