15
DMX Control
The
Protean XMi
can be controlled by any DMX lighting control system with 16bit precision
for pan, tilt and zoom. Also, if the correct lens is used this can be controlled also. The unit
uses 8 DMX channels for full control. Selecting DMX protocol and setting t
he ‘
Base
Addres
s’
is done using the
Multi Function Controller.
Ch Base Address
- Pan coarse
Ch Base + 1
- Pan fine
Ch Base + 2
- Tilt coarse
Ch Base + 3
- Tilt fine
Ch Base + 4
- Zoom coarse
Ch Base + 5
- Zoom fine
Ch Base + 6
- Focus
Ch Base + 7
- Iris
Not all channels need to be used. At any time the operator can take manual control using the
Multi Function Controller
. The unit automatically reverts to DMX control when it detects no
operator input
and
the DMX value changes significantly.
The
Proteân XMi
ensures that movement is not jerky yet remains accurate. Loss of data is
tolerated because the firmware predicts future positions based on the previous move profile
and fills in any gaps. This also enables operation with very low data rates and data drop-outs,
with just the minimum of variance from the desired move profile.
To inhibit DMX control of any channel, ensure the DMX value does not change.
Motion Control
Full positional motion control can be achieved by using any number of motion control
software applications. The unit continuously outputs
Free-D
or
Mstar
metadata in either
standard angular format or RAW numerical format. The RAW format enables metadata and
control over the full 360degrees of movement.
The unit can be controlled with commands in
Dstar, Mstar, DMX
or
Free-D
protocols. Using
Mstar
protocols enables simultaneous motion control along with all other commands (eg.
CCU commands) to be sent on the same data stream, either via RS422 or via an IP network.
Dstar protocol
RS485, 9600 baud, 8 data bits, no parity, 1 stop bit.
Mstar protocol
RS422, 38400 baud, 8 data bits, no parity, 1 stop bit.
DMX protocol
RS422, 250,000 baud, 8 data bits, no parity, 2 stop bits.
RS422 line is not terminated to 120 ohm.
FreeD Protocol
RS422, 38400 baud, 8 data bits, odd parity, 1 stop bit
