NI PXIe-7890 User manual

PXIe-7890/7891
Getting
Started
2023-11-21

Contents
Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
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PXIe-7890/7891 Getting Started

Getting Started
PXIe-7890/7891 Getting Started
Note Before you begin, install and configure your chassis and controller.
This document explains how to install, configure, and troubleshoot the PXIe-7890 or
PXIe-7891 module. You can program the PXIe-7890/7891 with the following soware
options.
■NI-FlexRIO driver soware
■NI LabVIEW Instrument Design Libraries for FlexRIO (instrument design
libraries)
Note Adapter modules are not installable or interchangeable on the
PXIe-7890/7891 device.
Unpacking the Kit
Notice To prevent electrostatic discharge (ESD) from damaging the
module, ground yourself using a grounding strap or by holding a grounded
object, such as your computer chassis.
1. Touch the antistatic package to a metal part of the computer chassis.
2. Remove the module from the package and inspect it for loose components or
other signs of damage.
Notice Never touch the exposed pins of connectors.
Note Do not install a module if it appears damaged in any way.
© National Instruments 3
PXIe-7890/7891 Getting Started

3. Unpack any other items and documentation from the kit.
Store the module in the antistatic package when the module is not in use.
What You Need to Get Started
Kit Contents
Verify that the following items are included in the PXIe-7890/7891 kit.
■ PXIe-7890 or PXIe-7891 module.
■PXIe-7890 or PXIe-7891 Safety, Environmental, and Regulatory
Information document.
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PXIe-7890/7891 Getting Started

Recommended Cables
NI recommends the following cables for use with the PXIe-7890/7891.
Connector Cable Description Part Number
CONNECTOR 0 and
CONNECTOR 4
SHC68-C68-D4 68-Pin, Male VHDCI to
68-Pin, Male VHDCI,
50 Ω, Shielded Digital
Cable
781013-01 (0.55 m)
196275-01 (1 m)
781293-01 (2 m)
SHC68-2MDR26- RDIO2 R Series Digital Cable,
1 m
148709-01 (1 m)
SHC68-C68- RDIO2 68-PinVHDCI Male to
68-Pin VHDCI Male,
80 MHz, Shielded
Digital Cable
156166-01 (1 m)
156166-02 (2 m)
CONNECTOR 1 and
CONNECTOR 3
SHC68-C68-D4 68-Pin, Male VHDCI to
68-Pin, Male VHDCI,
50 Ω, Shielded Digital
Cable
781013-01 (0.55 m)
196275-01 (1 m)
781293-01 (2 m)
132625-03 (3 m)
SHC68- 2MDR26-RDIO2 R Series Digital Cable,
1 m
148709-01 (1 m)
SHC68-C68- RDIO2 68-Pin VHDCI Male to
68-Pin VHDCI Male,
80 MHz, Shielded
Digital Cable
156166-01 (1 m)
156166-02 (2 m)
© National Instruments 5
PXIe-7890/7891 Getting Started

Connector Cable Description Part Number
CONNECTOR 2 SHC68-C68-D3 68-Pin, male VHDCI to
68-Pin, male VHDCI,
100 ohm, double-
shielded LVDS cable
188143-01 (1 m)
To be used together with a Read Transition Interface (RTI-12307) in a Switch Load and Signal
Conditioning (SLSC) system.
To be used together with a Read Transition Interface (RTI-12301) in an SLSC system.
Used for Connector 3 when the load side is terminated with 50 Ω.
Recommended Accessories
NI recommends the following accessories for use with the PXIe-7890/7891.
Connector Accessory Description Part Number
CONNECTOR 0 and
CONNECTOR 4
SCB-68 HSDIO Screw Terminal, 68-pin
VHDCI, Shielded I/O
Connector Block
782914-01
CONNECTOR 1 and
CONNECTOR 3
SMB-2153 32-Channel, 1-Pin SMB,
68-Pin VHDCI, Breakout
Connector Block
782648-01
SCB-68 HSDIO Screw Terminal, 68-pin
VHDCI, Shielded I/O
Connector Block
782914-01
CONNECTOR 2 SMB-2145 1-Pin SMB, 68-pin
VHDCI, 16-Channel
Analog Input, NI-5752
Terminal Block
781516-01
The negative analog input will be connected to the common ground GND of the module.
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PXIe-7890/7891 Getting Started

Front Panel and Connectors
Figure 1. PXIe-7890 and 7891 Front Panels
PXIe-7890
FlexRIO Multifunction I/O Module
PORT 1PORT 0
CONNECTOR 1 (2 MS/s/ch, AO 0 to 15)
CONNECTOR 3 (4 MS/s/ch, AO 0 to 15)
CONNECTOR 2 (AI 0 to 7)
CONNECTOR 4 (DIO 0 to 31)
CONNECTOR 0 (DIO 0 to 31)
PXIe-7891
FlexRIO Multifunction I/O Module
PORT 1PORT 0
CONNECTOR 1 (2 MS/s/ch, AO 0 to 31)
CONNECTOR 3 (4 MS/s/ch, AO 0 to 31)
CONNECTOR 2 (AI 0 to 15)
CONNECTOR 4 (DIO 0 to 31) CONNECTOR 0 (DIO 0 to 31)
The following table describes the signal connections for the PXIe-7890 and
PXIe-7891.
Table 1. Front Panel Connector Descriptions and Functions
Connector Description Function
PORT 0 and PORT 1 QSFP connector, SFF-8436
compliant
High-speed serial interfacing
port
CONNECTOR 0 and
CONNECTOR 4
68-pin VHDCI receptacle Digital IO
CONNECTOR 1 Analog Output
© National Instruments 7
PXIe-7890/7891 Getting Started

Connector Description Function
CONNECTOR 2 Analog Input
CONNECTOR 3 Low-latency analog output
Connector Pinouts
PORT 0 and PORT 1
Figure 2 shows the pinout for the PXIe-7890/7891 PORT 0 and PORT 1 connectors,
followed by pin descriptions.
Figure 2. QSFP Connector Pinout
19
18
17
16
15
14
13
12
11
29 10
20
21
22
23
24
25
26
27
28
9
8
7
6
5
4
3
2
1
30
31
32
33
34
35
36
37
38
GND
Rx2n
Rx2p
GND
Rx4n
Rx4p
ModPrsL
GND
IntL
Vcc Tx
Vcc1
LPMode
GND
Tx3p
Tx3n
GND
Tx1p
Tx1n
GND
GND
Rx1n
Rx1p
GND
Rx3n
Rx3p
SDA
GND
SCL
Vcc Rx
ResetL
ModSelL
GND
Tx4p
Rx4n
GND
Tx2p
Tx2n
GND
Table 2. Pin Descriptions for PORT 0 and PORT 1 Connectors
Pin Description
Txn <1..4> Transmitter Inverted Data Input
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PXIe-7890/7891 Getting Started

Pin Description
Txp <1..4> Transmitter Non-Inverted Data Input
Rxn <1..4> Receiver Inverted Data Output
Rxp <1..4> Receiver Non-Inverted Data Output
SCL 2-Wire Serial Interface Clock
SDA 2-Wire Serial Interface Data
ModPrsL Module Present
ModSelL Module Select
ResetL Module Reset
IntL Interrupt
LPMode Low Power Mode
Vcc Rx +3.3 V Power Supply Receiver
Vcc Tx +3.3 V Power Supply Transmitter
Vcc1 +3.3 V Power Supply
GND Ground
Notice The maximum input signal levels are valid only when the module
is powered on. To avoid permanent damage to the PXIe-7890/7891, do not
apply a signal to the device when the module is powered down.
Notice Connections that exceed any of the maximum ratings of any
connector on the PXIe-7890/7891 can damage the device and the system.
NI is not liable for any damage resulting from such connections.
CONNECTOR 0 and CONNECTOR 4
Figure 3 shows the pinouts for PXIe-7890/7891 CONNECTOR 0 and CONNECTOR 4,
followed by pin descriptions.
© National Instruments 9
PXIe-7890/7891 Getting Started

Figure 3. Digital I/O (DIO) Connectors
Table 3. Pin Descriptions for CONNECTOR 0 and CONNECTOR 4
Pin Description Signal Name in LabVIEW
DIO <0..31> Bidirectional digital input/
output signal connection
Digital Input:
■Conn0 DI / Ch <0..31>
■Conn4 DI / Ch <0..31>
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PXIe-7890/7891 Getting Started

Pin Description Signal Name in LabVIEW
Digital Output:
■Conn0 DO / Ch <0..31>
■Conn4 DO / Ch <0..31>
EXTCLKIN External clock input source
that can be used for source
synchronous acquisitions; the
provided clock source must be
stable and glitch free
Conn 0 External Clock
Conn 4 External Clock
GND Ground reference for digital
signals
—
NC No connection —
CONNECTOR 1 and CONNECTOR 3
Figure 4 and Figure 5 show the pinout information for CONNECTOR 1 and
CONNECTOR 3. The AO connectors are identical on each device, but dier between
modules. Pin descriptions are described in the table below the pinout diagrams.
© National Instruments 11
PXIe-7890/7891 Getting Started

Figure 4. PXIe-7890 Analog Output (AO)
Connectors
Figure 5. PXIe-7891 Analog Output (AO)
Connectors
AO30
GND
AO28
GND
AO26
GND
AO24
GND
AO22
GND
AO20
GND
AO18
GND
AO16
GND
AO14
GND
AO12
GND
AO10
GND
AO8
GND
AO6
GND
AO4
GND
AO2
GND
AO0
GND
NC
GND
AO31
AO29
GND
GND
AO25
GND
AO23
GND
AO27
GND
AO21
GND
AO19
GND
AO17
GND
AO15
GND
AO13
GND
AO11
GND
AO9
GND
AO7
GND
AO5
GND
AO3
GND
AO1
GND
NC
GND 6834
6733
6632
6531
6430
6329
6228
6127
6026
5925
5824
5723
5622
5521
5420
5319
5218
5117
5016
4915
4814
4713
4612
4511
4410
439
428
417
406
395
384
373
362
351
AO30
GND
AO28
GND
AO26
GND
AO24
GND
AO22
GND
AO20
GND
AO18
GND
AO16
GND
AO14
GND
AO12
GND
AO10
GND
AO8
GND
AO6
GND
AO4
GND
AO2
GND
AO0
GND
NC
GND
AO31
AO29
GND
GND
AO25
GND
AO23
GND
AO27
GND
AO21
GND
AO19
GND
AO17
GND
AO15
GND
AO13
GND
AO11
GND
AO9
GND
AO7
GND
AO5
GND
AO3
GND
AO1
GND
NC
GND 6834
6733
6632
6531
6430
6329
6228
6127
6026
5925
5824
5723
5622
5521
5420
5319
5218
5117
5016
4915
4814
4713
4612
4511
4410
439
428
417
406
395
384
373
362
351
Table 4. Pin Descriptions for CONNECTOR 1 and CONNECTOR 3
Pin Description Signal Name in LabVIEW
AO <0..15> (PXIe-7890)
AO <0..31> (PXIe-7891)
Analog output signal
connection
PXIe-7890:
■Calibrated: Conn1 AO /
Ch <0..15>
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PXIe-7890/7891 Getting Started

Pin Description Signal Name in LabVIEW
■Calibrated: Conn3
AO / Ch <0..15>
■Uncalibrated: Conn1
AO Raw / Ch <0..15>
■Uncalibrated: Conn3
AO Raw / Ch <0..15>
PXIe-7891:
■Calibrated: Conn1 AO /
Ch <0..31>
■Calibrated: Conn3 AO /
Ch <0..31>
■Uncalibrated: Conn1
AO Raw / Ch <0..31>
■Uncalibrated: Conn3
AO Raw / Ch <0..31>
GND Ground reference for the
analog output signal
—
NC No Connection —
CONNECTOR 2
Figure 6 and Figure 7 show the pinout information for CONNECTOR 2, the analog
input VHDCI front panel connector. Pin descriptions are described in the table below
the pinout diagrams.
© National Instruments 13
PXIe-7890/7891 Getting Started

Figure 6. PXIe-7890 Analog Input (AI) VHDCI
Connector
Figure 7. PXIe-7891 Analog Input (AI) VHDCI
Connector
Table 5. Pin Descriptions for CONNECTOR 2
Pin Description Signal Name in LabVIEW
AI <0+...7+> (PXIe-7890)
AI <0+...15+> (PXIe-7891)
Positive analog input signal
connection
PXIe-7890:
■Calibrated: Conn2 AI /
Ch <0..7>
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PXIe-7890/7891 Getting Started

Pin Description Signal Name in LabVIEW
AI <0-...7-> (PXIe-7890)
AI <0-...15-> (PXIe-7891)
■Uncalibrated:Conn2
AI / Ch <0..7>
PXIe-7891:
■Calibrated: Conn2 AI /
Ch <0..15>
■Uncalibrated:Conn2
AI / Ch <0..15>
Negative analog input signal
connection
GND Ground reference for the
analog input signal
—
NC No connection —
Preparing the Environment
Ensure that the environment you are using the PXIe-7890 in meets the following
specifications.
Temperature
Operating 0 °C to 55 °C
Storage -40 °C to 71 °C
Humidity
Operating 10% to 90%, noncondensing
Storage 5% to 95%, noncondensing
Pollution Degree 2
Maximum altitude 2,000 m (800 mbar) (at 25 °C ambient
temperature)
© National Instruments 15
PXIe-7890/7891 Getting Started

Notice This device is intended for use in indoor applications only.
Note Refer to the device specifications on ni.com/manuals for complete
specifications.
Installing the PXIe-7890/7891 Module
This section contains instructions for installing the PXIe-7890 or PXIe-7891 module
in a PXI Express chassis. Refer to your chassis user manual for specific instructions
and warnings. To install the module, complete the following steps:
1. Connect the AC power source to the PXI Express chassis before installing the
module. The AC power cord grounds the chassis and protects it from electrical
damage while you install the module.
2. Ensure that the chassis is powered o.
3. Inspect the slot pins on the chassis backplane for any bends or damage prior
to installation. Do not install any module if the backplane is damaged.
4. Remove the black plastic covers from all the captive screws on the module
front panel.
5. Touch any metal part of the chassis to discharge static electricity.
6. Place the module edges into the module guides at the top and bottom of the
chassis, as shown in the following figure. Slide the module into the slots until
it is fully inserted. Slide the module to the rear of the chassis, making sure that
the injector/ejector handle is pushed down.
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PXIe-7890/7891 Getting Started

Figure 8. Installing the Module
8899
77
66
55
44
33
22HHHHHHHHHHHHHHHH
11
LOWLOW POWERPOWER
PPXXIIe-1088e-1088
3
2
1
4
5
1. Injector/Ejector Handle2. PXIe-7890/7891 Module3. Front Panel Mounting
Screws (2x)4. PXI Express Chassis5. Module Guides
7. When you begin to feel resistance, push up on the injector/ejector handle to
fully seat the module into the chassis frame. Secure the module front panel to
the chassis using the module front-panel mounting screws.
Note Tightening the top and bottom mounting screws increases
mechanical stability and also electrically connects the front
panel to the chassis, which can improve the signal quality and
electromagnetic performance.
8. Cover all empty slots using EMC filler panels or fill using slot blockers to
maximize cooling air flow, depending on your application.
9. Leave the chassis powered o until you have installed the PXIe-7890 or
PXIe-7891 module.
Installing the Hot Pluggable QSFP Module
1. Hold the QSFP module with the pull-tab facing the le.
2. Remove the protective cover from the opposite end of the pull-tab. Leave the
dust plug inserted in the pull-tab end.
© National Instruments 17
PXIe-7890/7891 Getting Started

Figure 9. QSFP Module Install
3. With the pull-tab facing the le, align the QSFP module with the socket
opening at PORT 0 or PORT 1 on the PXIe-7890/7891. Carefully slide the QSFP
module into the port.
4. Use your thumb to press firmly on the QSFP module until it fully seats into
PORT 0 or PORT 1.
Note The QSFP module must be fully seated in PORT 0 or PORT 1
for the PXIe-7890/7891 to detect a connection.
5. Power on the chassis.
To protect the QSFP module from dust and debris, NI recommends leaving the dust
plug inserted in the pull-tab end of the module until you are ready to connect a
cable.
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PXIe-7890/7891 Getting Started

Installing the Software
You must be an Administrator to install NI soware on your computer.
1. Install an ADE, such as LabVIEW or LabWindows™/CVI™.
2. Download the driver soware installer from ni.com/downloads.
NI Package Manager downloads with the driver soware to handle the
installation. Refer to the NI Package Manager Manual for more information
about installing, removing, and upgrading NI soware using NI Package
Manager.
3. Follow the instructions in the installation prompts.
Note Windows users may see access and security messages during
installation. Accept the prompts to complete the installation.
4. When the installer completes, select Restart in the dialog box that prompts
you to restart, shut down, or restart later.
Note Install LabVIEW FPGA Compilation Tool for Vivado if you want
to use the local compile server to compile a LabVIEW FPGA bit file.
Con󽘀guring the PXIe-7890/7891 in MAX
Use Measurement & Automation Explorer (MAX) to configure your NI hardware. MAX
informs other programs about which NI hardware products are in the system and
how they are configured. MAX is automatically installed with FlexRIO.
1. Launch MAX.
2. In the configuration tree, expand Devices and Interfaces to see the list of
installed NI hardware.
Installed modules appear under the name of their associated chassis.
3. Expand your Chassis tree item.
MAX lists all modules installed in the chassis. Your default names may vary.
© National Instruments 19
PXIe-7890/7891 Getting Started

Note If you do not see your module listed, press <F5> to refresh the
list of installed modules. If the module is still not listed, power o the
system, ensure the module is correctly installed, and restart.
4. Record the identifier MAX assigns to the hardware. Use this identifier when
programming the PXIe-7890/7891.
5. Self-test the hardware by selecting the item in the configuration tree and
clicking Self-Test in the MAX toolbar.
The MAX self-test performs a basic verification of hardware resources.
Troubleshooting
If an issue persists aer you complete a troubleshooting procedure, search our
KnowledgeBase for additional information our technical support engineers create
as they answer common user questions and resolve unexpected issues.
What Should I Do if the PXIe-7890/7891 Does Not Appear
in MAX?
1. In the MAX configuration tree, expand Devices and Interfaces.
2. Expand the Chassis tree to see the list of installed hardware, and press <F5>
to refresh the list.
3. If the module is still not listed, power o the system, ensure that all hardware
is correctly installed, and restart the system.
4. Navigate to the Device Manager by right-clicking the Start button, and
selecting Device Manager.
5. Verify the PXIe-7890/7891 appears in the Device Manager.
a. Under an NI entry, confirm that a PXIe-7890/7891 entry appears.
Note If you are using a PC with a device for PXI remote
control system, under System Devices, also confirm that no
error conditions appear for the PCI-to-PCI Bridge.
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PXIe-7890/7891 Getting Started