National Instruments NI 9155 User manual

OPERATING INSTRUCTIONS AND SPECIFICATIONS

NI 9155

Reconfigurable Embedded Chassis with Integrated MXI-Express (x1)

Figure 1. NI 9155 Front Panel

This document describes how to connect the NI 9155 to a MXI-Express

host and one or more other chassis, and how to use the features of the

NI 9155. This document also contains specifications for the NI 9155. This

document refers inclusively to all reconfigurable embedded chassis with

integrated MXI-Express (x1), such as the NI 9154, NI 9155, NI 9157, and

NI 9159, as the NI 915x.

1LEDs

2 Upstream Port

3 MXI-Express LINK LEDs

4 Downstream Port

5 Power Connector

6 DIP Switches

INPUINPUT

9-30 V9-30 V

25W MA25W MAX

NO FPGA APNO FPGA APP

USER FPGAUSER FPGA1

USER FPGAUSER FPGA2

USER FPGAUSER FPGA3

USER FPGAUSER FPGA1

USER FPGAUSER FPGA2

USER FPGAUSER FPGA3

POWEROWER

USER FPGAUSER FPGA1

USER FPGAUSER FPGA2

USER FPGAUSER FPGA3

LINKLINK LINKLINK

UPSTREAMSTREAM

DOWNSTREAMDOWNSTREAM

MXI-Express RIOMXI-Express RIO

NI 9155

OFFOFF

NI 9155 Operating Instructions and Specifications 2 ni.com

Safety Guidelines

Operate the NI 9155 only as described in these operating instructions.

Safety Guidelines for Hazardous Locations

The NI 9155 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 9155 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 Gc equipment under

DEMKO Certificate No. 12 ATEX 1202658X. 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.

Caution Provision shall be made to prevent the rated voltage being exceeded by the

transient disturbances of more than 140% of the peak rated voltage.

Caution The system shall be mounted in an ATEX certified enclosure with a minimum

ingress protection rating of at least IP54 as defined in IEC/EN 60529 and used in an

environment of not more than pollution degree 2.

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

©National Instruments 3 NI 9155 Operating Instructions and Specifications

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 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 modifications to the product not expressly approved by

National Instruments could void your authority to operate it under your

local regulatory rules.

Caution To ensure the specified EMC performance, operate this product only with

shielded cables and accessories.

Special Guidelines for Marine Applications

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

(shipboard) applications. To verify Lloyd’s Register certification for a

product, visit ni.com/certification and search for the LR certificate,

or look for the Lloyd’s Register mark on the product label.

Caution 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 9155

❑NI 9155 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

– NI cRIO-9081/9082 integrated system

Note The NI 9155 requires a host system with a PCI Express clock that complies with the

PCI Express Specification. The NI 9155 may not be compatible with systems using

noncompliant clocks, particularly clocks with peak frequencies higher than 100 MHz. For

NI 9155 Operating Instructions and Specifications 4 ni.com

more information about PCI Express clock compatibility with the NI 9155, 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)

❑Two 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 9155.

Mounting the NI 9155

You can mount the chassis horizontally on a flat, vertical, metallic surface

such as a panel or wall. The maximum allowable ambient temperature for

operation in this kind of mounting configuration is 55 °C. You can also

mount the chassis on a DIN rail, on a desktop, or in a rack. However, only

panel or wall mounting as described in this document enables operation at

the maximum allowable ambient temperature. Any other mounting

configuration can also affect the typical accuracy of modules in the chassis.

Figure 2 shows the chassis mounted horizontally.

Figure 2. NI 9155 Mounted Horizontally

Note For more information about how different mounting configurations can cause

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

NI 9155NI 9155

©National Instruments 5 NI 9155 Operating Instructions and Specifications

Note For more information about typical accuracy specifications for modules, go to

ni.com/info and enter the Info Code criotypical.

Note 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.

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.

Note For information about the minimum cabling clearance for C Series modules with

other connector types, go to ni.com/info and enter the Info Code rdcrioconn.

Figure 3. NI 9155, Bottom View with Dimensions

Figure 4. NI 9155, Front View with Dimensions

1 Measure ambient temperature here.

1 Chassis Grounding Screw

29.1 mm

(1.14 in.)

52.5 mm

(2.07 in.)

50.8 mm

(2.00 in.)

63.5 mm

(2.50 in.)

89.4 mm

(3.52 in.)

264.3mm

(10.41 in.)

50.8 mm

(2.00 in.)

63.5 mm

(2.50 in.)

46.0 mm

(1.81 in.)

Cooling Outline

50.8 mm (2.00 in.)

88.1 mm

(3.47 in.)

Cooling Outline

50.8 mm (2.00 in.)

51.7 mm

(2.04 in.)

36.4 mm

(1.43in.)

19.0 mm

(0.75 in.)

165.1 mm

(6.50 in.)

3.5 mm

(0.14 in.)

NI 9155

NI 9155 Operating Instructions and Specifications 6 ni.com

Figure 5. NI 9155, Side View with Dimensions

Note For more information about the dimensions of the system, including detailed

dimensional drawings, go to ni.com/dimensions.

Note For more information about mounting the chassis in environments with high shock

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

Caution Make sure that no I/O modules are in the chassis before mounting it.

Mounting the Chassis Directly on a Flat Surface

Using the Mounting Holes

For environments with high shock and vibration, National Instruments

requires mounting the chassis directly on a flat, rigid surface using the

mounting holes in the chassis. Complete the following steps to mount the

chassis:

1. Use the dimensions shown in Figure 4 to prepare the surface for

mounting the chassis.

2. Align the chassis on the surface.

3. Fasten the chassis to the surface using two M4 or number 8 screws, as

shown in Figure 6. National Instruments does not provide these screws

with the chassis.

44.1 mm

(1.73in.)

25.0 mm

(0.98 in.)

63.1 mm

(2.48 in.)

74.6 mm

(2.94 in.)

50.8 mm

(2.00 in.)

©National Instruments 7 NI 9155 Operating Instructions and Specifications

Figure 6. Mounting the NI 9155 Directly on a Flat Surface

Caution Make sure that no I/O modules are in the chassis before removing it from the

surface.

Mounting the Chassis on a DIN Rail Using the NI 9915 DIN Rail Mount Kit

Complete the following steps to mount the chassis on a DIN rail using the

NI 9915 DIN rail mount kit.

1. Fasten the DIN rail clip to the chassis using a number 2 Phillips

screwdriver and two 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.).

Figure 7. Installing the DIN Rail Clip on the NI 9155

NI 9155

NI 9155 Operating Instructions and Specifications 8 ni.com

2. Insert one edge of the DIN rail into the deeper opening of the DIN rail

clip, as shown in Figure 8.

Figure 8. Attaching the DIN Rail Clip to the DIN Rail

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

locks in place on the DIN rail.

Installing C Series I/O Modules in the Chassis

Figure 9 shows the mechanical dimensions of C Series I/O modules.

Figure 9. C Series I/O Module, Front and Side View with Dimensions

1 DIN Rail Clip 2 DIN Rail 3 DIN Rail Spring

22.9 mm

(0.90 in.)

88.1 mm

(3.47 in.)

70.7 mm

(2.78 in.)

©National Instruments 9 NI 9155 Operating Instructions and Specifications

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 10. The module slots are labeled 1 to 8, left to right.

Figure 10. Installing an I/O Module in the Chassis

3. Squeeze the latches and insert the I/O module into the module slot.

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.

1 Insertion Groove 2Latch

NI 9155 Operating Instructions and Specifications 10 ni.com

Removing I/O Modules from the Chassis

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.

Connecting the Chassis to Earth Ground

You must connect the chassis grounding screw to earth ground. Refer to

Figure 4 for the location of the grounding screw. Complete the following

steps to connect to earth ground:

1. Attach a ring lug to a 2.05 mm diameter (12 AWG) or larger wire.

2. Remove the grounding screw from the grounding terminal on the right

side of the chassis.

3. Attach the ring lug to the grounding terminal.

4. Tighten the grounding screw to 0.5 N · m (4.4 lb · in.) of torque.

5. Attach the other end of the wire to earth ground using a method

appropriate for the application.

Note If you use shielded cabling to connect to a C Series I/O module with a plastic

connector, you must attach the cable shield to the chassis grounding terminal using 1.3 mm

diameter (16 AWG) or larger wire. Use shorter wire for better EMC performance.

For more information about earth ground connections, go to ni.com/info

and enter the Info Code earthground.

Wiring Power to the Chassis

The NI 9155 requires an external power supply that meets the

specifications in the Power Requirements section. The NI 9155 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 9155 has one layer of reversed-voltage

protection. Complete the following steps to connect a power supply to

the chassis.

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