User`s guide

Universal Library User's Guide Analog Input Boards - PCI-DAS1602, PCI-DAS1200 & PCI-DAS1000 Series
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The clock edge used to trigger analog output updates for the external pacer may be rising or falling and is
selectable using InstaCal.
Counters
The source for counter 4 may be internal or external and is selectable using InstaCal.
Although counters 4, 5 and 6 are programmable through the counter functions, the primary purpose for some
of these counters may conflict with these functions.
Potential conflicts include:
 PCI-DAS1200, PCI-DAS1000 Series: Counters 5 and 6 are always available to the user. Counter 4 is
used as a residual counter by some of the analog input functions and methods.
 PCI-DAS1602 Series: Counters 5 and 6 are used as DAC pacers by some analog output functions and
methods. Counter 4 is used as a residual counter by some of the analog input functions and methods.