Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 355)

Parameter Type Definitions
cntSource-(Daq9513CountSource)
Definition Description
DcsTcnM1* TC toggled output of previous (N-1) counter
DcsSrc1 Counter 1 input (pin36 of P3)
DcsSrc2 Counter 2 input (pin19 of P3)
DcsSrc3 Counter 3 input (pin17 of P3)
DcsSrc4 Counter 4 input (pin15 of P3)
DcsSrc5 Counter 5 input (pin13 of P3)
DcsGate1 Counter 1 gate (pin37 of P3)
DcsGate2 Counter 2 gate (pin18 of P3)
DcsGate3 Counter 3 gate (pin16 of P3)
DcsGate4 Counter 4 gate (pin14 of P3)
DcsGate5 Counter 5 gate (pin12 of P3)
DcsF1 Onboard 1 MHz Clock
DcsF2 Onboard 100 kHz Clock
DcsF3 Onboard 10 kHz Clock
DcsF4 Onboard 1 kHz Clock
DcsF5 Onboard 100 Hz Clock
*invalid with daq9513SetMasterMode
tod-(Daq9513TimeOfDay)
Definition Description
DtodDisabled Time of day function is not used
DtodDivideBy5 A 50Hz signal is being applied to pin 36 of P3 to generate time of day input
DtodDivideBy6 A 60Hz signal is being applied to pin 36 of P3 to generate time of day input
DtodDivideBy10 A 100Hz signal is being applied to pin 36 of P3 to generate time of day input
Returns
DerrInvCntSource Invalid source
DerrInvTod Invalid time of day mode
DerrInvDiv Invalid divisor
DerrNotCapable No 9513 available
DerrNoError No error
For more details on error messages refer to the Daq Error Table. The table precedes Appendix A.
Function Usage
All daq9513SetMasterMode parameters default to zero after daqOpen.
Configuring the Frequency Output Pin and Comparators
The frequency output source (cntSource) parameter selects what signal will be output on the frequency output
(fout) pin. The fout source can be any one of the following:
• the counter inputs--Src1 to Src5 (P3 pins 36, 19, 17, 15 or 13)
• the counter gates--Gate1 to Gate5 (P3 pins 37, 18, 17, 16 or 14)
• an internal frequency--F1 to F5
The sources F1 through F5 correspond to the frequencies 1 MHz, 100 kHz, 10 kHz, 1 kHz and 100 Hz.
The fout divider will divide the selected source by 1 to 16 before outputting the signal on the fout pin.
The 2 comparator flags (comp1 and comp2) control the comparators associated with counters 1 and 2. If
a comparator is set to true, the value in the corresponding alarm register (set with the
daq9513SetAlarm
function) will be compared with the value in the counter. The output of the
corresponding counter will become true when the value in the counter reaches the value in the alarm
register; the output remains true until the counter value changes. The polarity of the output depends on
the output control (set with the
Programmer’s Manual 938295 9513 Counter-Timer Commands D-15