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Tutorial 3. How to Insert steps in a DVR sequence file.
3.0
Once again we will use the dvrloop1 sequence file of tutorial 1 to illustrate this edit.
3.1
Using the ‘File / Open’ menu, load dvrloop1 into the ‘Sequence Builder’ as in tutorial 2.
3.2
This time we will cause the DVR to PAUSE 5 seconds after the start i.e. time point
00:00:07:00, then wait 5 seconds before continuing to the end of the loop.
3.3
Point to ‘01’ in the ‘Step’ column and click once. Notice 3 buttons appear below the
sequence table.
3.4
With Step 01 highlighted, click on ‘Step Insert’. Notice a new ‘WAIT FOR’ step is inserted
and the last 2 steps are pushed down. This has created a single step which has a minimum 1 frame time
delay.
3.5
Now click on ‘WAIT FOR’ (i.e. step 01) in the ‘Event’ column.
3.6
The ‘Device/Command Selector’ opens and we can edit the new command to be a WAIT
UNTIL time point 00:00:07:00. Note the difference between WAIT FOR (a simple delay of a number
of tics or frames) and WAIT UNTIL (a delay until the current time point is equal to or greater than the
programmed time).
3.7
We now need to enter a ‘PAUSE AT’ command to hold the video paused at this frame.
Single click on 02 in the Step column and click ‘Step Insert’ to insert another new dummy step. Edit
the command at step 02 to be ‘PAUSE AT’ time point 00:00:07:01 i.e. 1 frame after the ‘WAIT
UNTIL’.
3.8
We have now inserted a new pause command in the sequence, We now need a ‘WAIT FOR’
command to give a 5 second delay.
3.9
This time double-click on 03 in the Step column. Notice that this also inserts a dummy ‘WAIT
FOR’ command. Click on ‘WAIT FOR’ in the Event list and edit it for a delay of 5 seconds.
3.10 You should now have steps 00 - 05 programmed, however this sequence won’t work because
the ‘WAIT UNTIL’ command will do nothing until it sees a time frame equal to or greater than
00:00:12:00 and we left the DVR in PAUSE at step 02. We need to add a new ‘PLAY FROM’
command after the 5 second delay (step 03).
3.11 Insert a new step immediately before step 04, either by double-clicking 04 in the Step column
or single click and ‘Step Insert’ button.
3.12 Now edit Step 04 by clicking on ‘WAIT FOR’ in step 04. Select ‘PLAY FROM’ and enter
time code 00:00:07:02 i.e. 1 frame on from the current pause position.
3.13 Save this new sequence as dvrloop2, and download it to DVR sequence 00.
