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Event signals can be lost under the following circumstances:
• in a single time-controlled high-priority process
(also in combination with the externally controlled process)
• in the externally controlled process (also in combination with one or
more time-controlled processes).
In several time-controlled processes event signals cannot be lost; the
following condition will nevertheless be counted. Here the parameter
must be interpreted as a poor timing characteristic, which should be improved in any case.
Loosing event signals means that (since the last start of the process)
fewer process cycles have been executed than event signals occurred,
probably the amount fewer which is indicated. Lost event signals cannot be compensated by the operating system.
A loss of an event signal is equated to the fulfilment of the condition:
• in time-controlled processes:
max. latency+length > 2 × Processdelay
• in externally controlled processes:
When processing the section EVENT: has just been finished, a new
external event signal is already waiting. Any more event signals
having arrived during this processing time will be lost.
Sometimes it happens that, despite a true condition, no event is lost.
Thus, you play it safe reducing the amount of true conditions as far as
possible.
3.9.4
Global Variables Window
The window Global Variables displays which global variables (Par_1 …
Par_80, FPar_1 … FPar_80) and arrays (Data_1 … Data_200) are used in a
source code or a project.
To start or update the display click the button Scan Global Variables
in the Parameter Window (see Displaying used global variables and arrays,
page 34).
The window is part of the Info range (see page 62).
ADbasic 5.00, Manual March 2010
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