Martin MAC 350 Entour Bedienungsanleitung PDF herunterladen (Seite 21)

DMX operation 21

DMX operation

WARNING! Read “Safety Information” on page 3 before installing, powering, operating or servicing

the MAC 350 Entour.

This section describes only DMX control features that require particular explanation. See “MAC 350 Entour

DMX protocol” on page 32 for full list of the DMX channels and values required to control the different

effects. See “Effects” on page 19 for a full description of the fixture’s effects.

8- and 16-bit control

The MAC 350 Entour has two DMX operating modes, 8-bit and 16-bit. 16-bit mode uses three more DMX

channels than 8-bit mode and provides all the features of 8-bit mode plus fine control of rotating gobo, pan

and tilt. You can select the DMX operating mode in the PSET menu.

Where fine control is available, the main control channel sets the first 8 bits (the most significant byte or

MSB), and the fine channels set the second 8 bits (the least significant byte or LSB) of the 16-bit control

byte. In other words, the fine channel works within the position set by the coarse channel.

Fixture reset

If an effect loses its indexing and fails to move to programmed positions, the fixture can be reset from the

controller by sending the “Reset” command on DMX channel 1.

If DMX reset is disabled in the control menu (PERS→DRES→OFF), the reset command can only be

executed if color 8 is selected (DMX value 128 or 145 - 148 on channel 3) and gobo 6 is selected (DMX

value 24 - 27 or 52 - 55 on channel 4).

If PERS→DRES is set to 5SEC, the reset command must be sent for 5 seconds before it is executed.

Pan/tilt speed and effects speed channels

The pan/tilt and effects speed channels 11 and 12 in 8-bit mode or 14 and 15 in 16-bit mode provide two

methods of controlling the speed of pan/tilt and effect movement: “tracking” and “vector”.

Tracking versus vector control

Important! Movement may be rough and unpredictable if controller fade times are combined with vector speed

values.

if you select tracking mode, speed is determined by the cross-fade time programmed on the controller. With

this method, the controller divides a movement into tiny steps that the fixture “tracks”, or follows.

If you select vector mode, the fixture determines speed according to the DMX value you send on the speed

channel. Vector mode therefore allows you to control the speed of scene changes on controllers without

cross-faders. It can also give smoother movement, particularly at slow speeds, when using a controller that

sends slow or irregular tracking updates.

If the DMX controller has variable cross-fade times, set them to zero when using vector mode.

Personality overrides

Using the pan/tilt speed channel, you can set pan and tilt to tracking mode and at the same time set the

fixture’s own pan/tilt speed setting to normal or fast from the DMX controller, overriding the pan/tilt speed

setting available in the fixture’s control menus.

Using the effects speed channel, you can set the effects to tracking and at the same time set shortcuts to on

or off from the DMX controller, overriding the shortcuts setting available in the fixture’s control menus.

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Martin MAC 350 Entour Bedienungsanleitung Seite 21