ETC Eos v1.3 - Manual (Page 287)

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Using Show Control 273
Time Code
Eos has time code functionality based on a timing source and a list of events that execute at
specific times of that timing source. You can compile event lists and have them play back later while
following a timing source.
Time code lists can receive timing data from either SMPTE or MIDI sources. Eos accepts up to 32
SMPTE sources and 32 MIDI Time Code (MTC) sources (each are numbered from 1-32).
Enabling Time Code
Eos has global enablers for MIDI Time Code and SMPTE. These are found in Setup, Show Control,
page 87 .
If the MIDI Time Code setting is disabled, all MTC event lists are disabled as well. If enabled, all
MTC lists are enabled. The same is true for SMPTE.
Timing Data
Timing data is given in the form of (hours) : (minutes) : (seconds) : (frames). Therefore a timing
value of 06:25:15:20 would be 6 hours, 25 minutes, 15 seconds, 20 frames.
The number of frames per second is determined by the timing source and the event list must be set
to this same number of frames when programming. Number of frames can be 24, 25, or 30.
Internal vs. external time
Under normal operation, Eos receives timing information from an input source, using a show control
gateway. This timing source is referred to as external time, since it is coming from a source external
to Eos.
If the external time source stops for any reason, each event list within Eos has an internal timing
source which will assume control. This internal timing source requires three pieces of information to
determine how to generate its timing: first time, last time, and frame rate.
When the internal clock reaches the last time, it will reset to the first time and continues running.
Although external timing may run faster or slower than real time, the internal clock runs only at real
time.
Color coding
The color of the time in the “Status” column of the event list display indicates the source of the
timing data. The colors and indications are:
Green - Valid external timing is being received.
Red - The internal clock is the data source and is running.
Grey - No timing data is available.