National Instruments PCI-6110E/6111E TRIG1 Signal

Chapter 4 Signal Connections

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National Instruments Corporation 4-19 PCI-6110E/6111E User Manual

Figure4-11 shows the timing for the hardware-strobe mode

EXTSTROBE* signal.

Figure 4-11. EXTSTROBE* Signal Timing

TRIG1 Signal

Any PFI pin can externally input the TRIG1 signal, which is available

as an output on the PFI0/TRIG1 pin.

Refer to Figures4-8 and4-9 for the relationship of TRIG1 to the DAQ

sequence.

As an input, the TRIG1 signal is configured in the edge-detection mode.

You can select any PFI pin as the source for TRIG1 and configure the

polarity selection for either rising or falling edge. The selected edge

ofthe TRIG1 signal starts the data acquisition sequence for both

posttriggered and pretriggered acquisitions. The 611X E supports

analog triggering on the PFI0/TRIG1 pin. See Chapter3,

Hardware Overview, for more information on analog triggering.

As an output, the TRIG1 signal reflects the action that initiates a DAQ

sequence. This is true even if the acquisition is being externally

triggered by another PFI. The output is an active high pulse with a

pulsewidth of 25 to 50ns. This output is set to tri-state at startup.

twtw

VOH

VOL

tw= 600 ns or 5 µs

PCI_E.book Page 19 Thursday, June 25, 1998 12:55 PM

Contents

Main Page Important Information Warranty Copyright Trademarks WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS Page Chapter 4 Signal Connections Page Figures Tables About This Manual Organization of This Manual Conventions Used in This Manual National Instruments Documentation Related Documentation Customer Communication Introduction X About the 611 E Boards What You Need to Get Started Software Programming Choices National Instruments Application Software NI-DAQ Driver Software Register-Level Programming Optional Equipment Custom Cabling Unpacking Installation and Configuration Software Installation Hardware Installation Board Configuration National Instruments Corporation 3-1 PCI-6110E/6111E User Manual PCI_E.book Page 1 Thursday, June 25, 1998 12:55 PM Hardware Overview DAQ - STC RTSI Bus Figure 3-1. PCI-6110E Block Diagram I/O Connector Analog Input Input Mode I/O Connector PCI Bus IRQ DMA Input Polarity and Input Range Considerations for Selecting Input Ranges Input Coupling Dither Chapter 3 Hardware Overview PCI_E.book Page 5 Thursday, June 25, 1998 12:55 PM Analog Output a. Dither disabled; no averaging b. Dither disabled; average of 50 acquisitions Analog Trigger Page Page Page Digital I/O Timing Signal Routing Programmable Function Inputs Board and RTSI Clocks RTSI Triggers Signal Connections I/O Connector Figure 4-1. I/O Connector Pin Assignment for the 611 E PCI-6110E/6111E User Manual 4-2 National Instruments Corporation National Instruments Corporation 4-3 PCI-6110E/6111E User Manual I/O Connector Signal Descriptions Table 4-1. Signal Descriptions for I/O Connector Pins PCI-6110E/6111E User Manual 4-4 National Instruments Corporation Table 4-1. Signal Descriptions for I/O Connector Pins (Continued) National Instruments Corporation 4-5 PCI-6110E/6111E User Manual Table 4-1. Signal Descriptions for I/O Connector Pins (Continued) PCI-6110E/6111E User Manual 4-6 National Instruments Corporation Table 4-2 shows the I/O signal summary for the 611X E boards. Table 4-2. I/O Signal Summary for the 611 E Table 4-2. I/O Signal Summary for the 611 National Instruments Corporation 4-7 PCI-6110E/6111E User Manual E (Continued) Analog Input Signal Connections - Types of Signal Sources Floating Signal Sources Ground-Referenced Signal Sources Differential Measurements Differential Connection Considerations National Instruments Corporation 4-11 PCI-6110E/6111E User Manual Differential Connections for Ground-Referenced Signal Sources Figure 4-3 shows how to connect a ground-referenced signal source to a channel on the 611X E board. Figure 4-3. Differential Input Connections for Ground-Referenced Signals Differential Connections for Nonreferenced or Floating Signal Sources Figure 4-4 shows how to connect a floating signal source to a channel on the 611X E board. Common-Mode Signal Rejection Considerations Analog Output Signal Connections Digital I/O Signal Connections Page Power Connections Timing Connections Programmable Function Input Connections DAQ Timing Connections SCANCLK Signal EXTSTROBE* Signal TRIG1 Signal TRIG2 Signal Page STARTSCAN Signal CONVERT* Signal Page AIGATE Signal SISOURCE Signal Waveform Generation Timing Connections WFTRIG Signal UPDATE* Signal UISOURCE Signal General-Purpose Timing Signal Connections GPCTR0_SOURCE Signal GPCTR0_GATE Signal GPCTR0_OUT Signal GPCTR0_UP_DOWN Signal GPCTR1_SOURCE Signal GPCTR1_GATE Signal GPCTR1_OUT Signal GPCTR1_UP_DOWN Signal FREQ_OUT Signal Field Wiring Considerations Page Calibration Loading Calibration Constants Self-Calibration External Calibration Page A Specifications PCI-6110E/6111E Analog Input Input Characteristics Accuracy Information Appendix A Specifications 2 0.057% 0.058% 0.059% 1.3 mV 2 mV 0.18 mV 0.0005% 0.98 mV 0.23 mV 5 0.057% 0.058% 0.059% 3 mV 5.1 mV 0.44 mV 0.0005% 2.4 mV 0.58 mV 10 0.11% 0.11% 0.11% 5.7 mV 10 mV 0.88 mV 0.0005% 4.9 mV 1.2 mV PCI-6110E/6111E Accuracy Information National Instruments Corporation A-3 PCI-6110E/6111E User Manual 0.2 0.057% 0.058% 0.059% 0.2 mV 0.39 mV 0.035 mV 0.0005% 0.098 mV 0.046 mV Transfer Characteristics Amplifier Characteristics Dynamic Characteristics Stability Analog Output Output Characteristics Transfer Characteristics Voltage Output Dynamic Characteristics Stability Digital I/O Timing I/O Triggers Analog Trigger Digital Trigger Page B Appendix B Cable Connector Descriptions Figure B-1. 68-Pin 611 E Series Connector Pin Assignments National Instruments Corporation PCI-6110E/6111E User Manual B-2 C Common Questions General Information Installation and Configuration Analog Input and Output Timing and Digital I/O Page Page D Customer Communication Electronic Services Bulletin Board Support FTP Support Telephone and Fax Support Country Telephone Fax Technical Support Form PCI-6110E/6111E Hardware and Software Configuration Form National Instruments Products Other Products Documentation Comment Form Title: Edition Date: Part Number: Mail to: Technical Publications Fax to: Glossary Symbols/Numbers A B C D E F G H I K L M N O P R S T U V W Index Numbers A B C D E F G H I L M N O P Q R S T U V W