National Instruments 9155 Manuale utente
USER MANUAL
NI 9155
Reconfigurable Embedded Chassis with Integrated MXI-Express (x1)
This document describes the features of the NI 9155 and contains information about mounting
and operating the device.
NI 9155
Hardware
Data
Xilinx
Virtex-5 LX85
MXI-Express
Switch
Downstream
Connection
Upstream
Connection
C Series
Module
C Series
Module
Configuring the NI 9155
You can connect the NI 9155 to a MXI-Express host system and configure the powerup
options using a MXI-Express cable.
Connecting One or More NI 9155 Chassis to the MXI-
Express Host System or a Target
Complete the following steps to connect one or more NI 9155 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 9155 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 9155 in the chain.
5. Use a MXI-Express (x1) cable to connect the Downstream port of the first NI 9155 to the
Upstream port of the next NI 9155 in the chain.
Note The maximum number of NI 9155 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. Different types of systems may
support more or fewer chassis per chain. For more information about how
different system configurations can affect 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 9155 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 9155 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 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.
Configuring DIP Switches
Figure 1. 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. After startup you can download to the
FPGA from software 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 software to define the USER FPGA switches to meet the needs of your
application. Refer to the LabVIEW Help for information about programming these switches.
2| ni.com | NI 9155 User Manual
NI 9155 Features
The NI 9155 provides the following features.
Ports and Connectors
The NI 9155 provides the following ports and connectors.
C
C
V2
V1
INPUT
9-30 V
25W MAX
NO FPGA APP
USER FPGA1
USER FPGA2
USER FPGA3
LINK LINK
UPSTREAM
DOWNSTREAM
DO NOT SEPARATE CABLES WHEN
ENERGIZED IN HAZARDOUS LOCATIONS
MXI-Express RIO
NI 9155
OFF
POWER
USER FPGA1
USER FPGA2
USER FPGA3
31 2
1. Power Connector
2. MXI Express Upstream Port
3. MXI Express Downstream Port
Power Connector
The NI 9155 has a power connector to which you can connect a primary and secondary power
supply. The following table shows the pinout for the power connector.
NI 9155 User Manual | © National Instruments | 3
Table 1. Power Connector Pinout
Pinout Pin Description
V1
C
V2
C
V1 Primary power input
C Common
V2 Secondary power input
C Common
Caution The C terminals are internally connected to each other, but are not
connected to chassis ground. This isolation is intended to prevent ground loops and
does not meet UL ratings for safety isolation. You can connect the C terminals to
chassis ground externally. Refer to the specifications on ni.com/manuals for
information about the power supply input range and maximum voltage from
terminal to chassis ground.
If you apply power to both the V1 and V2 inputs, the NI 9155 operates from the V1 input. If
the input voltage to V1 is insufficient, the NI 9155 operates from the V2 input.
The NI 9155 has reverse-voltage protection.
The following NI power supplies and accessories are available for the NI 9155.
Table 2. Power Accessories
Accessory Part Number
NI PS-15 Power Supply, 24 VDC, 5 A, 100-120/200-240 VAC Input 781093-01
NI PS-10 Desktop Power Supply, 24 VDC, 5 A, 100-120/200-240 VAC Input 782698-01
MXI Express Port
You can use the MXI Express port on the NI 9155 to connect to a MXI Express chassis.
Complete the following steps to connect one or more NI 9155 to a MXI Express device.
1. Make sure the MXI Express device is configured and powered off.
2. Make sure the NI 9155 is powered off.
3. Connect the NI 9155 to the MXI Express device using a x1 cable.
4. Power on the MXI Express device.
5. Power on the NI 9155.
The MXI Express LINK LED on the front panel of the NI 9155 lights green when
communication is established. The LINK LED lights yellow when communication is
broken or no cable is connected.
Note The NI 9155 may not detect MXI Express devices connected while the
NI 9155 is powered on.
4| ni.com | NI 9155 User Manual
The following table shows the MXI Express cables available from NI.
Table 3. NI MXI Express Cables
Length Part Number
1 m 779500-01
3 m 779500-03
7 m 779500-07
Buttons
The NI 9155 provides the following buttons.
7654321 8
MXI-Express RIO
NI 9155
NO FPGA APP
USER FPGA1
USER FPGA2
USER FPGA3
POWER
USER FPGA1
USER FPGA2
USER FPGA3
INPUT
9-30 V
25W MAX
LINK LINK
UPSTREAM
DOWNSTREAM
DO NOT SEPARATE CABLES WHEN
ENERGIZED IN HAZARDOUS LOCATIONS
1
1. CMOS Reset Button
CMOS Reset Button
The NI 9155 has a CMOS reset button that you can use to reset the CMOS and the BIOS.
LEDs
The NI 9155 provides the following 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 9155 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.
NI 9155 User Manual | © National Instruments | 5
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 software to
define the USER FPGA LEDs to meet the needs of your application. Refer to LabVIEW Help
for information about programming these LEDs.
Chassis Grounding Screw
The NI 9155 provides a chassis grounding screw.
7654321 8
1
NO FPGA APP
USER FPGA1
USER FPGA2
USER FPGA3
POWER
USER FPGA1
USER FPGA2
USER FPGA3
INPUT
9-30 V
25W MAX
LINK LINK
UPSTREAM
DOWNSTREAM
DO NOT SEPARATE CABLES WHEN
ENERGIZED IN HAZARDOUS LOCATIONS
MXI-Express RIO
NI 9155
1. Chassis Grounding Screw
For EMC compliance, you must connect the NI 9155 to earth ground through the chassis
ground screw. Use wire that is 2.05 mm2 (12 AWG) solid copper wire with a maximum length
of 1.5 m (5 ft). Attach the wire to the earth ground of the electrode system of the facility.
Caution If you use shielded cabling to connect to a C Series 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. Attach a ring lug to the wire and attach
the wire to the chassis grounding terminal. Solder the other end of the wire to the
cable shield. Use shorter wire for better EMC performance.
For more information about ground connections, visit ni.com/info and enter the Info Code
emcground.
Mounting the Device
To obtain the maximum allowable ambient temperature of 55 °C, you must mount the NI 9155
horizontally on a 35-mm DIN rail or a flat, metallic, vertical surface such as a panel or wall.
You can mount the NI 9155 directly to the surface or use the NI Panel Mounting Kit. The
following figure shows the NI 9155 mounted horizontally. Mounting the NI 9155 in other
orientations or on a nonmetallic surface can reduce the maximum allowable ambient
temperature and can affect the typical accuracy of modules in the NI 9155.
6| ni.com | NI 9155 User Manual
Figure 2. NI 9155 Horizontal Mounting
7654321 8 1
NO FPGA APP
USER FPGA1
USER FPGA2
USER FPGA3
POWER
USER FPGA1
USER FPGA2
USER FPGA3
INPUT
9-30 V
25W MAX
LINK LINK
UPSTREAM
DOWNSTREAM
DO NOT SEPARATE CABLES WHEN
ENERGIZED IN HAZARDOUS LOCATIONS
MXI-Express RIO
NI 9155
1. Up
Note For more information about how different mounting configurations can cause
temperature derating, visit ni.com/info and enter the Info Code criomounting.
Note For more information about typical accuracy specifications for C Series
modules, visit ni.com/info and enter the Info Code criotypical.
Caution Make sure that no C Series modules are in the NI 9155 before mounting
it.
Dimensions
The following figures show the front and side dimensions of the NI 9155. For detailed
dimensional drawings and 3D models, visit ni.com/dimensions and search for the module
number.
Figure 3. NI 9155 Front Dimensions
7654321 8
88.1 mm
(3.47 in.)
NO FPGA APP
USER FPGA1
USER FPGA2
USER FPGA3
POWER
USER FPGA1
USER FPGA2
USER FPGA3
INPUT
9-30 V
25W MAX
LINK LINK
UPSTREAM
DOWNSTREAM
DO NOT SEPARATE CABLES WHEN
ENERGIZED IN HAZARDOUS LOCATIONS
MXI-Express RIO
NI 9155
NI 9155 User Manual | © National Instruments | 7
Figure 4. NI 9155 Side Dimensions
44.1 mm
(1.73 in.)
25.0 mm
(0.98 in.)
63.1 mm
(2.48 in.)
74.6 mm
(2.94 in.)
50.8 mm
(2.00 in.)
Mounting Requirements
Your installation must meet the following requirements for cooling and cabling clearance.
Allow 50.8 mm (2.00 in.) on the top and the bottom of the NI 9155 for air circulation, as
shown in the following figure.
Figure 5. NI 9155 Cooling Dimensions
7654321 8
Cooling Outline
50.8 mm (2.00 in.)
Cooling Outline
50.8 mm (2.00 in.)
NO FPGA APP
USER FPGA1
USER FPGA2
USER FPGA3
POWER
USER FPGA1
USER FPGA2
USER FPGA3
INPUT
9-30 V
25W MAX
LINK LINK
UPSTREAM
DOWNSTREAM
DO NOT SEPARATE CABLES WHEN
ENERGIZED IN HAZARDOUS LOCATIONS
MXI-Express RIO
NI 9155
Allow the appropriate space in front of C Series modules for cabling clearance, as shown in
the following figure. The different connector types on C Series modules require different
8| ni.com | NI 9155 User Manual
cabling clearances. For a complete list of cabling clearances for C Series modules, visit
ni.com/info and enter the Info Code crioconn.
Figure 6. NI 9155 Cabling Clearance
Cabling
Clearance
Ambient Temperature
Measure the ambient temperature at each side of the NI 9155, 63.5 mm (2.50 in.) from the side
and 50.8 mm (2.00 in.) forward from the rear of the NI 9155, as shown in the following figure.
Figure 7. NI 9155 Ambient Temperature Location
50.8 mm
(2.00 in.)
1
50.8 mm
(2.00 in.)
63.5 mm
(2.50 in.)
1
63.5 mm
(2.50 in.)
1. Location for measuring the ambient temperature
Mounting the Device on a DIN Rail
You can use the NI DIN rail mounting kit to mount the NI 9155 on a standard 35-mm DIN
rail.
What to Use
• NI 9155
• Screwdriver, Phillips #2
• NI DIN rail mounting kit, 779018-01
– DIN rail clip
– M4x50 screw (x2)
NI 9155 User Manual | © National Instruments | 9
What to Do
Complete the following steps to mount the NI 9155 on a DIN rail.
1. Align the NI 9155 and the DIN rail clip.
2. Fasten the DIN rail kit to the NI 9155 using the screwdriver and M4x50 screws. NI
provides these screws with the DIN rail mounting kit. Tighten the screws to a maximum
torque of 1.3 N · m (11.5 lb · in.).
Note You must use the screws provided with the NI DIN rail mounting kit
because they are the correct depth and thread for the DIN rail clip.
Clipping the Device on a DIN Rail
Complete the following steps to clip the NI 9155 on a DIN rail.
1
2
1. Insert one edge of the DIN rail into the deeper opening of the DIN rail clip.
2. Press down firmly to compress the spring until the clip locks in place on the DIN rail.
Caution Ensure that no C Series modules are in the NI 9155 before removing it
from the DIN rail.
10 | ni.com | NI 9155 User Manual
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