Time Controller Series User Manual
Section 6: Operating the Time Controller Software
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6.2.1.4
Safe delays
In configuring the input and output channels (see Sections 6.2.2 and 6.2.3), the user can specify a
signal delay up to 1 second, at a precision of 1 picosecond. However, as the signal events are stored
in a buffer before being released after the desired delay, the buffer might overflow if the input signal
frequency is too high.
By selecting the
‘Coer
ce to safe delays
’
checkbox, the Time Controller software limits the input and
output delays to a secure maximum of 4 microseconds each, to prevent such an overflow. If this
option is disabled, a delay field
’s text
will be coloured when its value is above 4 microseconds.
Hovering the mouse over the coloured text will display a warning message stating the maximum
event frequency that can be reliably registered with for a given input or output delay (see Figure 15).
Figure 15: Warning message for an unsafe input delay (top) or output delay (bottom)
, if ‘Coerce to safe delays’ i
s deselected
in the device settings
6.2.2
Configuring Start and Input Channels
Use the Channels configuration view to configure the start and input channels:
Figure 16: Input channels configuration view