National Instruments NI 9157 User manual

OPERATING INSTRUCTIONS AND SPECIFICATIONS

NI 9157/9159

Reconfigurable Embedded Chassis with Integrated MXI-Express (x1)

Figure 1. NI 9157/9159

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.

1LEDs

2 Upstream Port

3 MXI-Express LINK LEDs

4 Downstream Port

5 Power Connector

6 DIP Switches

INPUT

9-30 V

35W MAX

NO FPGA APP

USER FPGA1

USER FPGA2

USER FPGA3

USER FPGA1

USER FPGA2

USER FPGA3

POWER

USER FPGA1

USER FPGA2

USER FPGA3

LINK LINK

UPSTREAM

DOWNSTREAM

MXI-Express RIO

NI 915X

OFF

NI 9157/9159 Operating Instructions and Specifications 2 ni.com

Safety Guidelines

Operate the NI 9157/9159 only as described in these operating instructions.

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 1, Zone 2, AEx nA IIC T4 and Ex nA

IIC T4 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 off.

Caution Substitution of components may impair suitability for Class I, Division 2.

Caution For Zone 2 applications, install the system in an enclosure rated to at least IP 54

as defined by IEC 60529 and EN 60529.

Special Conditions for Hazardous Locations Use

in Europe

Some chassis have been evaluated as Ex nA IIC T4 equipment under

DEMKO Certificate No. 07 ATEX 0626664X. Each such chassis is marked

II 3G and is suitable for use in Zone 2 hazardous locations, in ambient

temperatures of 0 Ta 55 °C.

Special Conditions for Marine Applications

Some chassis are Lloyd’s Register (LR) Type Approved for marine

applications. To verify Lloyd’s Register certification, visit ni.com/

certification and search for the LR certificate, or look for the Lloyd’s

Caution To meet radio frequency emission requirements for marine applications, use

shielded cables and install the system in a metal enclosure. Suppression ferrites must be

installed on power supply inputs to modules. Power supply and module cables must be

separated on opposite sides of the enclosure and must enter and exit through opposing

enclosure walls.

©National Instruments Corporation 3 NI 9157/9159 Operating Instructions and Specifications

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 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) for PXI Express User Manual

Notes Visit ni.com/info and enter the Info Code rdsoftwareversion to determine

which software you need to use the NI 9157/9159.

NI 9157/9159 Operating Instructions and Specifications 4 ni.com

Mounting the NI 9157/9159

You can mount the chassis horizontally either 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 different orientation or on a nonmetallic surface can reduce the

maximum allowable ambient temperature and can affect the typical

accuracy of modules in the chassis. Figure 2 shows the chassis mounted

horizontally.

Figure 2. NI 9157/9159 Mounted Horizontally

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, as shown in Figure 3.

Note For more information about how different mounting configurations can cause

temperature derating, go to ni.com/info and enter the Info Code criomounting.

Note For more information about typical accuracy specifications 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, as shown

in Figure 3.

©National Instruments Corporation 5 NI 9157/9159 Operating Instructions and Specifications

Figure 3. NI 9157/9159, Bottom View with Dimensions

Figure 4. NI 9157/9159, Front View with Dimensions

1 Measure ambient temperature here.

63.5 mm

(2.50 in.)

50.8 mm

(2 in.) 406.3mm

(16 in.)

50.8 mm

(2 in.)

48.4 mm

(1.91 in.)

89.4 mm

(3.52 in.)

63.5 mm

(2.50 in.)

29 mm

(1.14 in.)

Cabling Clearance

50.8 mm (2 in.)

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.)

87.3mm

(3.44 in.)

Cooling Outline

50.8 mm (2 in.)

36.4 mm

(1.43in.)

132.6 mm

(5.22 in.)

165.1 mm

(6.50 in.)

NI 9157/9159 Operating Instructions and Specifications 6 ni.com

Figure 5. NI 9157/9159, Side View with Dimensions

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 50 screws. National Instruments 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.).

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.)

©National Instruments Corporation 7 NI 9157/9159 Operating Instructions 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, as shown in Figure 7.

Figure 7. One Edge of the DIN Rail Inserted in a Clip

3. Press down firmly on the chassis to compress the spring until the clip

locks in place on the DIN rail.

1 DIN Rail Clip 2 DIN Rail Spring 3 DIN Rail

NI 9157/9159 Operating Instructions and Specifications 8 ni.com

Mounting the Chassis on a Flat Surface

Using the NI 9907 Panel Mount Kit

Panel or wall mounting is the best method for high shock and vibration

applications. 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 panel mounting plate to the chassis using a number 2

Phillips screwdriver and six M4 10 screws. National Instruments

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 Mounting Plate on the NI 9157/9159

©National Instruments Corporation 9 NI 9157/9159 Operating Instructions and Specifications

Figure 9. Dimensions of NI 9157/9159 with Panel Mounting Plate Installed

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.

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 affords, 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.

National Instruments 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

surface.

25.25 mm

(0.994 in.)

9.53mm

(0.375 in.)

25.70 mm

(1.012 in.)

457.20 mm

(18 in.)

438.15 mm

(17.250 in.)

17.40 mm (0.685 in.)

31.75 mm

(1.250 in.) 63.50 mm

(2.500 in.)

88.14 mm

(3.470 in.)

NI 9157/9159 Operating Instructions and Specifications 10 ni.com

Installing C Series I/O Modules in the Chassis

Figure 11 shows the mechanical dimensions of C Series I/O modules.

Figure 11. C Series I/O Module, Front and Side View with Dimensions

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 as shown

in Figure 12. The module slots are labeled 1 to 14, left to right.

22.9 mm

(0.9 in.)

88.1 mm

(3.47 in.)

70.7 mm

(2.78 in.)

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