User manual

Chapter 3 Software Overview
NI-DAQ User Manual for PC Compatibles 3-102 ni.com
• Configure analog input (analog output) operation to trigger upon
receiving a pulse on the counter output.
• Counter produces a pulse when the clock value reaches the desired
time interval.
3. Poll the armed attribute of the counter until it is disarmed, when the
counter has generated the trigger pulse.
4. At the end of the operation, free up any hardware and software
resources. After powering up, the clock will run until the power to
the TIO ASIC is turned off.
RTSI Bus Trigger Functions
The Real-Time System Integration (RTSI) Bus Trigger functions connect
and disconnect signals over the RTSI bus trigger lines.
Refer to the NI-DAQ Function Reference Online Help file to determine
which functions your device supports.
RTSI_Clear
Disconnects all RTSI bus trigger lines from
signals on the specified device.
RTSI_Clock
Connects or disconnects the system clock from
the RTSI bus.
RTSI_Conn
Connects a device signal to the specified RTSI
bus trigger line.
RTSI_DisConn
Disconnects a device signal from the specified
RTSI bus trigger line.
Select_Signal
Connects or disconnects a device signal to a
RTSI bus trigger line.
Refer to the NI-DAQ Function Reference Online Help file to determine if
your device supports RTSI.
RTSI Bus
The RTSI bus is implemented via a 34-pin ribbon cable connector on
the AT, NEC, PCI E Series, PCI-DSA, and 671X devices. The RTSI bus
is implemented on VXI-DAQ devices using the VXIbus trigger lines.
On PXI DAQ and DSA devices, the RTSI bus is implemented using
PXI trigger bus lines. On 1394 E Series DAQ devices, the RTSI bus is
implemented with a 15-pin mini-DSUB connector. The RTSI bus has a