National Instruments NI 6221 User Manual

Chapter 2 DAQ System Overview
M Series User Manual 2-2 ni.com
Figure 2-2. General M Series Block Diagram
DAQ-STC2 and DAQ-6202
The DAQ-STC2 and DAQ-6202 implement a high-performance digital
engine for M Series data acquisition hardware. Some key features of this
engine include the following:
• Flexible AI and AO sample and convert timing
• Many triggering modes
• Independent AI, AO, DI, and DO FIFOs
• Generation and routing of RTSI signals for multi-device
synchronization
• Generation and routing of internal and external timing signals
• Two flexible 32-bit counter/timer modules with hardware gating
• Digital waveform acquisition and generation
• Static DIO signals
• True 5 V high current drive DO
• DI change detection
• PLL for clock synchronization
• Seamless interface to signal conditioning accessories
• PCI/PXI interface
• Independent scatter-gather DMA controllers for all acquisition and
generation functions
Analog Output
Digital I/O
Analog Input
Counters
PFI
Digital
Routing
and Clock
Generation
Bus
Interface
Bus
I/O Connector
RTSI

National Instruments NI 6221 Specifications

General

Brand	National Instruments
Model	NI 6221
Category	Media Converter
Language	English