National Instruments 9148 Manuale utente
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USER MANUAL AND SPECIFICATIONS
NI 9148
Ethernet Expansion Chassis for C Series Modules
This document describes how to connect the NI 9148 to a network and how to use the NI 9148
features. This document also contains specifications for the NI 9148.
Figure 1. NI 9148 Front Panel
NI 9148
POWER
USER FPGA1
STATUS
SAFE MODE
IP RESET
INPUT
19-30 V
20 W MAX
LINK
10/
100
V
C
NC
C
DO NOT SEPARATE CABLES WHEN
ENERGIZED IN HAZARDOUS LOCATIONS
2
3
4
1
1. LEDs
2. RJ-45 Ethernet Port
3. Power Connector
4. DIP Switches
Safety Guidelines
Operate the NI 9148 only as described in this document.
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Caution Do not operate the NI 9148 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.
Safety Guidelines for Hazardous Locations
The NI 9148 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 and Ex nA IIC T4 hazardous locations; and
nonhazardous locations only. Follow these guidelines if you are installing the NI 9148 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 Do not disconnect I/O-side wires or connectors unless power has been
switched off or the area is known to be nonhazardous.
Caution Do not remove modules unless power has been switched off or the area is
known to be nonhazardous.
Caution Substitution of components may impair suitability for Class I, Division 2.
Caution For Division 2 and Zone 2 applications, install the system in an enclosure
rated to at least IP54 as defined by IEC/EN 60079-15.
Special Conditions for Hazardous Locations Use in Europe and
Internationally
The NI 9148 has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO Certificate
No. 07 ATEX 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 -40 °C ≤
Ta ≤ 70 °C.
Caution You must make sure that transient disturbances do not exceed 140% of
the rated voltage.
Caution The system shall only be used in an area of not more than Pollution
Degree 2, as defined in IEC 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.
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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 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 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.
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.
Unpacking the Kit
Caution To prevent electrostatic discharge (ESD) from damaging the device,
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 device from the package and inspect the device for loose components or any
other sign of damage.
Caution Never touch the exposed pins of connectors.
Note Do not install a device if it appears damaged in any way.
3. Unpack any other items and documentation from the kit.
Store the device in the antistatic package when the device is not in use.
NI 9148 User Manual | © National Instruments | 3
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What You Need to Install the NI 9148
• NI 9148 Ethernet Expansion Chassis
• NI-RIO Software DVD
• C Series I/O modules
• DIN rail mount kit (for DIN rail mounting only)
• Panel mount kit (for panel mounting only)
• Two M4 or number 8 flathead screws (for mounting the chassis without one of the listed
mounting kits)
• A number 2 Phillips screwdriver
• Power supply
• Ethernet cable
Note Visit ni.com/info and enter the Info Code rdsoftwareversion to
determine which software you need to use the NI 9148.
Mounting the Chassis
You can mount the chassis in any orientation on a 35 mm DIN rail or on a panel. Use the DIN
rail mounting method if you already have a DIN rail configuration or if you need to be able to
quickly remove the chassis. Use the panel mount method for high shock and vibration
applications.
Your installation must meet the following requirements for space and cabling clearance:
• Allow 25.4 mm (1 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.
Figure 2. NI 9148 Bottom View with Dimensions
29 mm
(1.14 in.)
58.9 mm
(2.32 in.)
48.4 mm
(1.91 in.)
3.3 mm
(0.13 in.)
286.4 mm
(11.28 in.)
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Figure 3. NI 9148 Front View with Dimensions
87.3 mm
(3.44 in.)
165.1 mm
(6.50 in.)
3.1 mm
(0.12 in.)
51.1 mm
(2.04 in.)
36.4 mm
(1.43 in.)
19 mm
(0.75 in.)
NI 9148
POWER
USER FPGA1
STATUS
SAFE MODE
IP RESET
INPUT
19-30 V
20 W MAX
LINK
10/
100
V
C
NC
C
Figure 4. NI 9148 Side View with Dimensions
3XM4X0.7
25 mm
(0.98 in.)
44 mm
(1.73 in.)
23.7 mm
(0.94 in.)
63.1 mm
(2.48 in.)
44.1 mm
(1.74 in.)
The following sections give 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 after 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 Panel
You can use the NI 9905 panel mount kit to mount the NI 9148 on a flat surface. Complete the
following steps to mount the NI 9148 on a panel.
1. Fasten the chassis to the panel mount kit using a number 2 Phillips screwdriver and two
M4 × 25 screws. National Instruments provides these screws with the panel mount kit.
NI 9148 User Manual | © National Instruments | 5
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You must use these screws because they are the correct depth and thread for the panel.
Tighten the screws to a maximum torque of 1.3 N · m (11.5 lb · in.).
Figure 5. Installing the Panel Mount Accessory on the NI 9148
Figure 6. Dimensions of NI 9148 with Panel Mount Accessory Installed
31.8 mm
(1.25 in.)
15.5 mm
(0.61 in.)
9.5 mm
(0.38 in.) 28.1 mm
(1.11 in.)
63.5 mm
(2.50 in.)
88.1 mm
(3.47 in.)
311.2 mm
(12.25 in.)
330.2 mm
(13.00 in.)
NI 9148
POWER
USER FPGA1
STATUS
SAFE MODE
IP RESET
INPUT
19-30 V
20 W MAX
LINK
10/
100
V
C
NC
C
2. Fasten the NI 9905 panel to the wall using the screwdriver and screws that are
appropriate for the wall surface. The maximum screw size is M4 or number 8.
Caution Make sure that no I/O modules are in the chassis before removing it
from the panel.
Mounting the Chassis on a DIN Rail
You can order the NI 9915 DIN rail mount kit to mount the NI 9148 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.
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1. Fasten the DIN rail clip to the chassis using a number 2 Phillips screwdriver and two
M4 × 16 screws. NI provides these screws with the DIN rail mount kit.
Figure 7. Installing the DIN Rail Clip on the NI 9148
2. Insert one edge of the DIN rail into the deeper opening of the DIN rail clip.
Figure 8. 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.
NI 9148 User Manual | © National Instruments | 7
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Installing C Series I/O Modules in the Chassis
The following figure shows the mechanical dimensions of C Series I/O modules.
Figure 9. 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
(0.9 in.)
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 the following
figure. The module slots are labeled 1 to 8, left to right.
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Figure 10. Installing an I/O Module in the Chassis
1
2
1. Insertion Groove
2. Latch
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.
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.
2. Squeeze the latches on both sides of the module and pull the module out of the chassis.
Connecting the Chassis to a Network
Connect the chassis to an Ethernet network using Ethernet port 1 on the front panel. Use a
standard Category 5 (CAT-5) or better shielded, twisted-pair Ethernet cable to connect the
chassis to an Ethernet hub or a computer.
NI 9148 User Manual | © National Instruments | 9
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