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National Instruments PXIe-7862R, Руководство пользователя

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Figure 6.

 Connecting a Load

NI PXIe-7862

Connection

Accessory

AOGND

LOAD

AO

DAC

Digital I/O

The NI PXIe-7862 provides connections for 32 digital input/output (DIO) channels. Connector

0 and Connector 1 each contains 16 low-speed channels that can run up to 10 MHz signal

frequencies. Each connector has a fixed logic level of 3.3 V. You can configure each channel

as input or output.

Figure 7.

 Connecting to the DIO Channels

NI PXIe-7862

Power

FPGA

Connection

Accessory

DIO0

DIO1

DIO14

DIO15

Connecter 0 (RMIO)

1

Connection

Accessory

DIO0

DIO1

DIO14

DIO15

Connecter 1 (RMIO)

1

2

1. Low-speed signal frequencies up to 10 MHz with logic levels configured as 3.3 V.
2. LED

The DIO channels, which have overvoltage and undervoltage protection as well as over

current protection, connect to the FPGA . Refer to the device specifications on 

ni.com/manuals

for more information about the maximum voltage and current.

6

  | 

ni.com

  | 

NI PXIe-7862 User Manual

Содержание PXIe-7862R

Страница 1: ...PXIe 7862R ...

Страница 2: ...he following high level block diagram represents the NI PXIe 7862 Figure 1 NI PXIe 7862 Block Diagram Device Temperature NI ASIC Kintex 7 FPGA Flash Memory DIO Data Address Control Overvoltage Protection 5 V Reference AO AO x8 DAC ADC AI AI x8 INA DIO x16 DDR3 RAM 100 MHz OSC Overvoltage Protection Overvoltage Protection NI PXIe 7862 PXIe Connector Overvoltage Protection 5 V Reference ADC AI x8 IN...

Страница 3: ...5 11 44 10 43 9 42 8 41 7 40 6 39 5 38 4 37 3 36 2 35 1 CONNECTOR 0 RMIO 5V DIO0 DIO1 DIO2 DIO3 DIO4 DIO5 DIO6 DIO7 DIO9 DIO11 DIO13 DIO15 NC NC NC NC NC NC NC NC AISENSE1 AI15 AIGND14 AI14 AI13 AIGND12 AI12 AI11 AIGND10 AI10 AI9 AIGND8 AI8 5V DGND DGND DGND DGND DGND DGND DGND DGND DIO8 DIO10 DIO12 DIO14 NC NC NC NC NC NC NC NC NC AI15 AIGND15 AI14 AI13 AIGND13 AI12 AI11 AIGND11 AI10 AI9 AIGND9 A...

Страница 4: ...862 Specifications available at ni com manuals for more information Note The pinout label on the lid of the SCB 68A accessory is incompatible with the NI PXIe 7862 Refer to the NI 78xxR Pinout Labels for the SCB 68A available at ni com manuals for the compatible pinout labels Connectivity Options Use the following connection accessories and cables to access the signals on the I O connectors Table ...

Страница 5: ...the specified range Figure 2 Connecting Referenced Single Ended Signals to the NI PXIe 7862 PGIA ADC AI NI PXIe 7862 Connection Accessory AISENSE AIGND V1 Overvoltage Protection AI Overvoltage Protection Overvoltage Protection To connect non referenced single ended voltage signals to the NI PXIe 7862 you must connect the voltage ground signal to AI SENSE in order to keep the common mode voltage in...

Страница 6: ...ction To connect floating differential signals to the NI PXIe 7862 you must connect the negative and positive signals to AI GND through 1 MΩ resistors to keep the voltage within the common mode voltage range If the voltage source is outside the common mode voltage range the NI PXIe 7862 does not read data accurately Figure 5 Connecting Floating Differential Signals to the NI PXIe 7862 PGIA ADC AI ...

Страница 7: ...input or output Figure 7 Connecting to the DIO Channels NI PXIe 7862 Power FPGA Connection Accessory DIO0 DIO1 DIO14 DIO15 Connecter 0 RMIO 1 Connection Accessory DIO0 DIO1 DIO14 DIO15 Connecter 1 RMIO 1 2 1 Low speed signal frequencies up to 10 MHz with logic levels configured as 3 3 V 2 LED The DIO channels which have overvoltage and undervoltage protection as well as over current protection con...

Страница 8: ... With this type of wire the signal attached to the positive and negative inputs are twisted together and then covered with a shield You then connect this shield only at one point to the signal source ground This kind of connection is required for signals traveling through areas with large magnetic fields or high electromagnetic interference Route signals to the device carefully Keep cabling away f...

Страница 9: ...States create your service request at ni com support or dial 1 866 ASK MYNI 275 6964 For support outside the United States visit the Worldwide Offices section of ni com niglobal to access the branch office websites which provide up to date contact information Information is subject to change without notice Refer to the NI Trademarks and Logo Guidelines at ni com trademarks for information on NI tr...

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