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Chapter 1
Introduction
6711/6713/6715 User Manual
1-2
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♦
PCI/PXI/Compact PCI-6711/6713 only
Often with other DAQ devices, you cannot easily synchronize several
measurement functions to a common trigger or timing event. The
PXI/CompactPCI-6711/6713 device has the Real-Time System Integration
(RTSI) bus to solve this problem. The RTSI bus consists of our RTSI bus
interface and a ribbon cable to route timing and trigger signals between
several functions on as many as five DAQ devices in your computer. If you
are using the PXI-6711/6713 in a PXI chassis, RTSI lines, known as the
PXI trigger bus, are part of the backplane, therefore you do not need the
RTSI cable for system triggering and timing on the PXI.
♦
DAQCard-6715 only
The DAQCard-6715 provides access to timing and triggering signals
through the I/O connector for synchronization to other DAQ devices or
timing signals.
Detailed specifications of the 671X device are in Appendix A,
Specifications
.
Using PXI with CompactPCI
♦
PXI/CompactPCI-6711/6713 Only
Using PXI-compatible products with standard CompactPCI products is an
important feature provided by the PXI Specification, revision 1.0. If you use
a PXI-compatible plug-in device in a standard CompactPCI chassis, you
cannot use PXI-specific functions, but you can still use the basic plug-in
device functions. For example, the PXI trigger bus on your 6711/6713
device is available in a PXI chassis but not in a CompactPCI chassis.
The CompactPCI specification permits vendors to develop sub-buses that
coexist with the basic PCI interface on the CompactPCI bus. Compatible
operation is not guaranteed between CompactPCI devices with different
sub-buses nor between CompactPCI devices with sub-buses and PXI.
The standard implementation for CompactPCI does not include these
sub-buses. Your 6711/6713 device will work in any standard CompactPCI
chassis adhering to the PICMG CompactPCI 2.0 R2.1 document.
PXI-specific features, RTSI bus trigger, RTSI Clock, and Serial
Communication, are implemented on the J2 connector of the CompactPCI
bus. Table 1-1 lists the J2 pins used by your PXI/CompactPCI-6711/6713,
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