NI NI-9157 User manual

NI-9157/9159
User Manual
and
Specifications
2022-07-01

Contents
NI 9157/9159 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
NI 9157/9159 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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NI-9157/9159 User Manual and Specifications

NI 9157/9159 Overview
Figure 1. NI 9157/9159 Front Panel
4
6
2
5
1
C
C
V2
V1
INPUT
9-30 V
35W MAX
NO FPGA APP
USER FPGA1
USER FPGA2
USER FPGA3
P
USER FPGA1
USER FPGA2
USER FPGA3
POWER
USER FPGA1
USER FPGA2
USER FPGA3
LINK LINK
UPSTREAM
DOWNSTREAM
MXI-Express RIO
NI 915X
3
OFF
1. LEDs
2. Upstream Port
3. MXI-Express LINK LEDs
4. Downstream Port
5. Power Connector
6. DIP Switches
This document describes how to connect the NI 9157/9159 to a MXI-Express host
and one or more other chassis, and how to use the features of the NI 9157/9159. This
document also contains specifications for the NI 9157/9159.
Safety Guidelines
Caution Observe all instructions and cautions in the user documentation.
Using the product in a manner not specified can damage the product and
compromise the built-in safety protection.
© National Instruments 3
NI-9157/9159 User Manual and Specifications

Attention Suivez toutes les instructions et respectez toutes les mises
en garde de la documentation d'utilisation. L'utilisation du produit de
toute autre façon que celle spécifiée risque de l'endommager et de
compromettre la protection de sécurité intégrée.
Safety Guidelines for Hazardous Locations
The NI 9157/9159 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4
hazardous locations; Class I, Zone 2, AEx nA IIC T4 Gc and Ex nA IIC T4 Gc hazardous
locations; and nonhazardous locations only. Follow these guidelines if you are
installing the NI 9157/9159 in a potentially explosive environment. Not following
these guidelines may result in serious injury or death.
Caution Do not disconnect the power supply wires and connectors from
the controller unless power has been switched o.
Caution Do not disconnect I/O-side wires or connectors unless power has
been switched o or the area is known to be nonhazardous.
Caution Do not remove modules unless power has been switched o or
the area is known to be nonhazardous.
Caution Substitution of components may impair suitability for Class I,
Division 2, or Zone 2.
Caution The system must be installed in an enclosure certified for the
intended hazardous (classified) location, having a tool secured cover/door,
where a minimum protection of at least IP54 is provided.
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NI-9157/9159 User Manual and Specifications

Special Conditions for Hazardous Locations Use in Europe and
Internationally
The NI 9157/9159 has been evaluated as Ex nA IIC T4 Gc equipment under
DEMKO 07ATEX 0626664X and is IECEx UL 14.0089X certified. Each device is
marked II 3G and is suitable for use in Zone 2 hazardous locations, in ambient
temperatures of 0 °C ≤ Ta ≤ 55 °C.
Caution Transient protection shall be provided that is set at a level not
exceeding 140% of the peak rated voltage value of 85 V at the supply
terminals to the equipment.
Caution The system shall only be used in an area of not more than
Pollution Degree 2, as defined in IEC/EN 60664-1.
Caution The system shall be mounted in an ATEX/IECEx-certified
enclosure with a minimum ingress protection rating of at least IP54 as
defined in IEC/EN 60079-15.
Caution The enclosure must have a door or cover accessible only by the
use of a tool.
Electromagnetic Compatibility Guidelines
This product was tested and complies with the regulatory requirements and limits
for electromagnetic compatibility (EMC) stated in the product specifications. These
requirements and limits provide reasonable protection against harmful interference
when the product is operated in the intended operational electromagnetic
environment.
This product is intended for use in industrial locations. However, harmful
interference may occur in some installations, when the product is connected to
a peripheral device or test object, or if the product is used in residential or
© National Instruments 5
NI-9157/9159 User Manual and Specifications

commercial areas. To minimize interference with radio and television reception and
prevent unacceptable performance degradation, install and use this product in strict
accordance with the instructions in the product documentation.
Furthermore, any changes or modifications to the product not expressly approved
by National Instruments could void your authority to operate it under your local
regulatory rules.
Special Conditions for Marine Applications
Some products are approved for marine (shipboard) applications. To verify marine
approval certification for a product, visit ni.com/product-certifications, search by
model number, and click the appropriate link.
Notice In order to meet the EMC requirements for marine applications,
install the product in a shielded enclosure with shielded and/or filtered
power and input/output ports. In addition, take precautions when
designing, selecting, and installing measurement probes and cables to
ensure that the desired EMC performance is attained.
What You Need to Install the NI 9157/9159
■ NI 9157/9159 reconfigurable embedded chassis with integrated MXI-Express
(x1)
■One of the following MXI-Express (x1) host systems:
■PXI system with MXI-Express device installed
■PC with MXI-Express PCI or PCIe device installed
■NI Industrial Controller
Note
The NI 9157/9159 requires a host system with a PCI Express clock
that complies with the PCI Express Specification. The NI 9157/9159
may not be compatible with systems using noncompliant clocks,
particularly clocks with peak frequencies higher than 100 MHz. For
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NI-9157/9159 User Manual and Specifications

more information about PCI Express clock compatibility with the
NI 9157/9159, go to ni.com/info and enter the Info Code 915xclock.
■C Series I/O modules
■MXI-Express (x1) cable(s) up to 7 m long
■DIN rail mount kit (for DIN rail mounting only)
■ Panel mount kit (for panel mounting only)
■Three M4 or number 8 panhead screws (for mounting the chassis without
one of the listed mounting kits)
■Number 2 Phillips screwdriver
■Power supply
■ MXI-Express (x1) Series User Manual
Note Visit ni.com/info and enter the Info Code rdsowareversion to
determine which soware you need to use the NI 9157/9159.
Mounting the NI 9157/9159
You can mount the chassis horizontally on a 35 mm DIN rail or on a flat,
vertical, metallic surface such as a panel or wall. The maximum allowable ambient
temperature for operation is 55 °C. Mounting the chassis in a dierent orientation or
on a nonmetallic surface can reduce the maximum allowable ambient temperature
and can aect the typical accuracy of modules in the chassis. The following figure
shows the chassis mounted horizontally.
Figure 2. NI 9157/9159 Mounted Horizontally
Up
Measure the ambient temperature at each side of the chassis, 63.5 mm (2.5 in.) from
the side and 50.8 mm (2 in.) forward from the rear of the chassis.
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NI-9157/9159 User Manual and Specifications

Note For more information about typical accuracy specification for
modules, go to ni.com/info and enter the Info Code criotypical.
Caution Your installation must meet the following requirements for space
and cabling clearance:
■Allow 50.8 mm (2 in.) on the top and the bottom of the chassis for air
circulation.
■Allow 50.8 mm (2 in.) in front of modules for cabling clearance for
common connectors, such as the 10-terminal, detachable screw terminal
connector.
Figure 3. NI 9157/9159, Bottom View with Dimensions
63.5 mm
(2.50 in.)
50.8 mm
(2 in.) 406.3 mm
(16 in.)
50.8 mm
(2 in.)
48.4 mm
(1.91 in.)
1
1
89.4 mm
(3.52 in.)
63.5 mm
(2.50 in.)
29 mm
(1.14 in.)
Cabling Clearance
50.8 mm (2 in.)
1. Measure ambient temperature here.
Figure 4. NI 9157/9159, Front View with Dimensions
51.7 mm
(2.04 in.)
28.0 mm
(1.10 in.)
4.1 mm
(0.16 in.)
Cooling Outline
50.8 mm (2 in.)
88.1 mm
(3.47 in.)
Cooling Outline
50.8 mm (2 in.)
36.4 mm
(1.43 in.)
132.6 mm
(5.22 in.)
165.1 mm
(6.50 in.)
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Figure 5. NI 9157/9159, Side View with Dimensions
18.7 mm
(0.74 in.)
44.1 mm
(1.74 in.)
69.5 mm
(2.74 in.)
51.4 mm
(2.02 in.)
68.2 mm
(2.68 in.)
The following sections contain instructions for the mounting methods. Before using
any of these mounting methods, record the serial number from the back of the
chassis. You will be unable to read the serial number aer you have mounted the
chassis.
Caution Make sure that no I/O modules are in the chassis before
mounting it.
Mounting the Chassis on a DIN Rail
Use the DIN rail mounting method if you already have a DIN rail configuration or if
you need to be able to remove the chassis quickly. You can order the NI 9916 DIN
rail mount kit if you want to mount the chassis on a DIN rail. You need one clip for
mounting the chassis on a standard 35 mm DIN rail. Complete the following steps to
mount the chassis on a DIN rail.
1. Fasten the DIN rail clip to the chassis using a number 2 Phillips screwdriver
and three M4 x 50 screws. NI provides these screws with the DIN rail mount kit.
Tighten the screws to a maximum torque of 1.3 N · m(11.5 lb · in.).
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NI-9157/9159 User Manual and Specifications

Figure 6. Installing the DIN Rail Clip on the NI 9157/9159
2. Insert one edge of the DIN rail into the deeper opening of the DIN rail clip.
Figure 7. One Edge of the DIN Rail Inserted in a Clip
3
2
1
1. DIN Rail Clip
2. DIN Rail
3. DIN Rail Spring
3. Press down firmly on the chassis to compress the spring until the clip locks in
place on the DIN rail.
Caution Make sure that no I/O modules are in the chassis before
removing it from the DIN rail.
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Mounting the Chassis on a Flat Surface Using the NI 9907 Panel
Mount Kit
Panel or wall mounting is the best method for applications that are subject to
high shock and vibration. You can use the NI 9907 panel mount kit to mount the
NI 9157/9159 on a flat surface. Complete the following steps.
1. Fasten the chassis to the panel mount kit using a number 2 Phillips
screwdriver and six M4 x 50 screws. NI provides these screws with the panel
mount kit. Tighten the screws to a maximum torque of 1.3 N · m (11.5 lb · in.).
Figure 8. Installing the Panel Mount Plate on the NI 9157/9159
Figure 9. Dimensions of NI 9157/9159 with Panel Mounting Plate Installed
25.3 mm
(0.99 in.)
9.5 mm
(0.37 in.)
25.7 mm
(1.01 in.)
457.2 mm
(18.0 in.)
438.2 mm
(17.25 in.)
17.4 mm (0.69 in.)
31.8 mm
(1.25 in.) 63.5 mm
(2.50 in.) 88.1 mm
(3.47 in.)
2. Fasten the panel mounting plate to the surface using the screwdriver and
screws that are appropriate for the surface. The maximum screw size is M4 or
number 8.
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NI-9157/9159 User Manual and Specifications

Caution Make sure that no I/O modules are in the chassis before
removing it from the panel.
Mounting the Chassis Directly on a Flat Surface Using the
Mounting Holes
Panel or wall mounting is the best method for high shock and vibration
applications. If you do not have the NI 9907 panel mount kit and do not require
the portability that the NI 9907 aords, you can mount the NI 9157/9159 directly on
a flat surface using the three mounting holes. Complete the following steps.
1. Align the chassis on the surface.
2. Fasten the chassis to the surface using three M4 or number 8 screws. NI does
not provide these screws with the chassis.
Figure 10. Mounting the NI 9157/9159 Directly on a Flat Surface
Caution Make sure that no I/O modules are in the chassis before
removing it from the panel.
Installing C Series Modules
The following figure shows the mechanical dimensions of C Series I/O modules.
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Figure 11. C Series I/O Module, Front and Side View with Dimensions
88.1 mm
(3.47 in.)
70.7 mm
(2.78 in.)
22.9 mm
(0.90 in.)
Complete the following steps to install a C Series I/O module in the chassis.
1. Make sure that no I/O-side power is connected to the I/O module. If the
system is in a nonhazardous location, the chassis power can be on when you
install I/O modules.
2. Align the I/O module with an I/O module slot in the chassis. The module slots
are labeled 1 to 14, le to right.
Figure 12. Installing an I/O Module in the Chassis
2
1
1. Insertion Groove
2. Latch
3. Squeeze the latches and insert the I/O module into the module slot.
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4. Press firmly on the connector side of the I/O module until the latches lock the
I/O module into place.
5. Repeat these steps to install additional I/O modules.
Removing C Series Modules
Complete the following steps to remove a C Series I/O module from the chassis.
1. Make sure that no I/O-side power is connected to the I/O module. If the
system is in a nonhazardous location, the chassis power can be on when you
remove I/O modules.
2. Squeeze the latches on both sides of the module and pull the module out of
the chassis.
Wiring Power to the Chassis
The NI 9157/9159 requires an external power supply that meets the specifications.
The NI 9157/9159 filters and regulates the supplied power and provides power for all
of the I/O modules. You must connect a power supply to at least one pair of V and
C terminals. Optionally, you can connect a second power supply to the other pair of
V and C terminals. The chassis draws power from the power supply with the higher
voltage. The NI 9157/9159 has one layer of reverse-voltage protection. Complete the
following steps to connect a power supply to the chassis.
1. Connect the positive lead of the power supply to the V1 or V2 terminal of the
COMBICON connector shipped with the NI 9157/9159.
2. Connect the negative lead of the power supply to one of the C terminals of the
COMBICON connector.
3. Optionally you can connect the positive lead of another power supply to the
other V terminal and the negative lead to one of the C terminals.
4. Install the COMBICON connector on the front panel of the NI 9157/9159.
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Connecting One or More NI 9157/9159 Chassis to the MXI-
Express Host System or a Target
Complete the following steps to connect one or more NI 9157/9159 chassis to a
MXI-Express host system or a target.
1. Make sure the MXI-Express host system is set up and configured as described
in the MXI-Express (x1) Series User Manual.
2. If the MXI-Express host system is powered up, power it down.
3. If the NI 9157/9159 is powered up, power it down.
4. Use a MXI-Express (x1) cable to connect the MXI-Express host system to the
Upstream port of the first NI 9157/9159 in the chain.
5. Use a MXI-Express (x1) cable to connect the Downstream port of the first
NI 9157/9159 to the Upstream port of the next NI 9157/9159 in the chain.
Note The maximum number of NI 9157/9159 chassis in a chain
depends on the system configuration. For example, a PXI system
with an NI PXI-8196 controller can support four chassis per chain.
Dierent types of systems may support more or fewer chassis
per chain. For more information about how dierent system
configurations can aect the maximum number of chassis in a chain,
go to ni.com/info and enter the Info Code 915xchain.
6. Power up all of the connected NI 9157/9159 chassis.
7. Power up the MXI-Express host system.
Note Refer to the MXI-Express (x1) Series User Manual for
connectivity options and supported host devices.
Caution All connected NI 9157/9159 chassis must have power
connected before the host system is powered up. The BIOS and OS
of the host system must detect all bus segments on the chassis side
in order to configure the PCI hierarchy. Powering connected chassis
© National Instruments 15
NI-9157/9159 User Manual and Specifications

up or down while the host system is running can cause system hangs
and data corruption.
Caution Do not remove MXI-Express (x1) cables while power is
connected. Doing so can cause hangs or application errors. If a cable
becomes unplugged, plug it back in and reboot.
Chassis Powerup Options
The following table lists the reset options available for the NI 9157/9159. These
options determine how the chassis behaves when it is powered on in various
conditions. Use the RIO Device Setup utility to select reset options. Access the
RIO Device Setup utility by selecting Start»All Programs»National Instruments»NI-
RIO»RIO Device Setup.
Table 2. Chassis Powerup Options
Powerup Option Behavior
Do Not Autoload VI Does not load the FPGA bit stream from flash memory.
Autoload VI on device powerup Loads the FPGA bit stream from flash memory to the FPGA when
the chassis powers on.
If you want the NI 9157/9159 to autoload and run a VI at powerup, you must also
configure the VI to autoload before you compile it. For more information about
autoloading VIs, refer to the LabVIEW FPGA Module Help.
Checking MXI-Express LINK LEDs for Status
Aer powering on the chassis and host system, check the MXI-Express LINK LEDs
to ensure that all connected systems are linked and communicating properly. The
MXI-Express LINK LEDs of the NI 9157/9159 indicate the following:
Table 2. NI 9157/9159 MXI-Express LINK LED Indications
LINK LED Appearance Meaning
O Chassis power is o.
Solid yellow Link is not established.
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LINK LED Appearance Meaning
Solid green Link is established.
Blinking yellow PCI Express clock is incompatible with NI 9157/9159
Note For information about PCI Express clock compatibility with the
NI 9157/9159, go to ni.com/info and enter the Info Code 915xclock.
Powering Down the MXI-Express System
Always power down the host system before powering down any connected
NI 9157/9159 chassis. When the host system is powered down, the order in which
the NI 9157/9159 chassis are powered down is not important.
Configuring DIP Switches
Figure 13. DIP Switches
NO FPGA APP
USER FPGA1
USER FPGA2
USER FPGA3
OFF
All of the DIP switches are in the OFF position when the chassis is shipped from
National Instruments.
NO FPGA APP Switch
Push the NO FPGA APP switch to the ON position to prevent a LabVIEW FPGA
application from loading at startup. The NO FPGA APP switch overrides the chassis
powerup options described in the section on chassis powerup options. Aer startup
you can download to the FPGA from soware regardless of switch position.
USER FPGA Switches
You can define the USER FPGA switches for your application. Use the LabVIEW FPGA
Module and NI-RIO soware to define the USER FPGA switches to meet the needs
© National Instruments 17
NI-9157/9159 User Manual and Specifications

of your application. Refer to the LabVIEW Help for information about programming
these switches.
Understanding LED Indications
Figure 14. NI 9157/9159 LEDs
P
USER FPGA1
USER FPGA2
USER FPGA3
POWER
USER FPGA1
USER FPGA2
USER FPGA3
POWER LED
The POWER LED is lit while the NI 9157/9159 is powered on. This LED is a bi-color
LED. When the chassis is powered from V1, the POWER LED is lit green. When the
chassis is powered from V2, the POWER LED is lit yellow.
USER FPGA LEDs
You can use the bi-color, yellow and green USER FPGA LEDs to help debug your
application or easily retrieve application status. Use the LabVIEW FPGA Module
and NI-RIO soware to define the USER FPGA LEDs to meet the needs of your
application. Refer to LabVIEW Help for information about programming these LEDs.
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NI-9157/9159 User Manual and Specifications

NI 9157/9159 Specifications
The following specifications are typical for the range 0 °C to 55 °C unless otherwise
noted.
Caution Do not operate the NI 9157/9159 in a manner not specified in this
document. Product misuse can result in a hazard. You can compromise the
safety protection built into the product if the product is damaged in any
way. If the product is damaged, return it to NI for repair.
MXI-Express
Maximum cable length 7 m
Reconfigurable FPGA
NI 9157
FPGA type Virtex-5 LX85
Number of flip-flops 51,840
Number of 6-input LUTs 51,840
Number of DSP48 slices (25 x 18 multipliers) 48
Embedded block RAM 3,456 kbits
NI 9159
FPGA type Virtex-5 LX110
© National Instruments 19
NI-9157/9159 User Manual and Specifications

Number of flip-flops 69,120
Number of 6-input LUTs 69,120
Number of DSP48 slices (25 x 18 multipliers) 64
Embedded block RAM 4,608 kbits
Timebases 40 MHz, 80 MHz, 120 MHz, 160 MHz, or 200 MHz
Accuracy ±100 ppm (maximum)
Frequency dependent on jitter (peak-to-peak)
40 MHz 250 ps
80 MHz 422 ps
120 MHz 422 ps
160 MHz 402 ps
200 MHz 402 ps
Power Requirements
Caution You must use the NI 9157/9159 with a 9 VDC to 30 VDC output, UL
Listed limited power source (LPS) supply. The power supply must bear the
UL Listed and LPS marks. The power supply must also meet any safety and
compliance requirements for the country of use.
Recommended power supply 55 W, 30 VDC maximum
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