Programming instructions

© National Instruments Corporation 15-1 DAQ Hardware Overview Guide
15
VXI-DAQ Devices
This chapter contains overview information on VXI-DAQ devices,
including the VXI-DIO-128, VXI-AO-48XDC, VXI-SC-1102,
VXI-SC-1102B, VXI-SC-1102C, VXI-SC-1150, VXI-MIO-64E-1,
and VXI-MIO-64XE-10.
National Instruments VXI-DAQ devices are in many respects similar to
their plug-in counterparts, but they have higher performance and more
features. They provide a high-end solution for applications that demand
larger channel counts and greater throughput.
See Chapter 1, MIO and AI Devices, for more information on the VXI-MIO
devices.
RTSI
On a VXI chassis, the RTSI bus is implemented with VXI trigger bus lines.
Each trigger bus line connects to all the VXI slots. The following table
shows the mapping between the RTSI bus line (identifier) and the
corresponding VXIbus trigger line.
Table 15-1.
RTSI Bus Line and VXIbus Trigger Mapping
RTSIbus Line Identifier VXIbus Trigger Line
ND_RTSI_0
VXIbus TTL Trigger 0 (TTLTRG0)
ND_RTSI_1
VXIbus TTL Trigger 1 (TTLTRG1)
ND_RTSI_2
VXIbus TTL Trigger 2 (TTLTRG2)
ND_RTSI_3
VXIbus TTL Trigger 3 (TTLTRG3)
ND_RTSI_4
VXIbus TTL Trigger 4 (TTLTRG4)
ND_RTSI_5
VXIbus ECL Trigger 0 (ECLTRG0)
ND_RTSI_6
VXIbus ECL Trigger 1 (ECLTRG1)
ND_RTSI_CLOCK
VXIbus ECL Trigger 0 (ECLTRG0)