National Instruments BNC-2110 Manual de usuario

INSTALLATION GUIDE

BNC-2110

Desktop and DIN Rail-Mountable BNC Adapter

for Multifunction DAQ Devices

This installation guide describes how to install and configure your

BNC-2110 accessory with an E Series, S Series, or NI 671X/673X

waveform generation Multifunction DAQ device.

The BNC-2110 is a desktop and DIN rail-mountable BNC adapter you

can connect to data acquisition (DAQ) devices. The BNC-2110 includes

15 BNC connectors, a terminal block with 30 pins for signal connections,

and a 68-pin I/O connector that connects to the E Series, S Series, and

waveform generation Multifunction DAQ devices. The BNC-2110 is ideal

for simplifying connections between your measurement apparatus and your

DAQ device in laboratory, test, and production environments.

What You Need to Get Started

To set up and use your BNC-2110 accessory, you need the following:

❑BNC-2110 BNC Adapter

❑BNC-2110 Installation Guide

❑Multifunction DAQ device and the appropriate cable

❑Small flathead screwdriver (supplied)

For detailed specifications for the BNC-2110, refer to the Specifications

section.

BNC-2110 Installation Guide 2 ni.com

Installing Your BNC-2110

To connect your BNC-2110 to your DAQ device, refer to Figure 1 as you

complete the following steps. Consult your computer user manual or

technical reference manual for specific instructions and warnings.

Note If you have not already installed your DAQ device, refer to the DAQ Quick Start

Guide for instructions.

Figure 1. Connecting the BNC-2110 to Your DAQ Device

1. Place the BNC-2110 near the host computer or use the optional DIN

rail-mounting kit, which you can order from National Instruments.

For more information about the DIN rail-mounting kit, refer to the

National Instruments Web site at ni.com or call the office nearest you.

2. With the DAQ device powered off, connect the BNC-2110 to your

DAQ device using the appropriate cable. Refer to Table 1 to make sure

that you have the proper cable for the DAQ device that you are using.

1 BNC-2110

2 Shielded Cable

3 DAQ Device

4 Personal Computer

©National Instruments Corporation 3 BNC-2110 Installation Guide

3. Make sure the floating source (FS)/ground-referenced source (GS)

switches under BNC connectors AI <0..7> are set correctly for your

application. Refer to the Connecting Analog Inputs (E Series and

S Series Devices Only) section for more information.

4. Connect the field signals to the BNC connectors and/or digital spring

terminal plugs. Refer to the Configuring the BNC-2110 section for

more information.

5. Refer to the DAQ Quick Start Guide to launch Measurement &

Automation Explorer (MAX), confirm that your DAQ device is

recognized, and configure your device settings. National Instruments

recommends that you use your DAQ device in differential mode when

using the BNC-2110.

6. Test specific device functionality, such as the ability to send and

receive data. Refer to the DAQ Quick Start Guide for more detailed

information about running test panels in MAX.

When you have finished using the BNC-2110, power off any external

signals connected to the BNC-2110 before you power off your computer.

Caution The BNC-2110 is not designed for input voltages greater than 42 V, even if a

user-installed voltage divider reduces the voltage to within the input range of the DAQ

device. Input voltages greater than 42 V can damage the BNC-2110, any device connected

to it, and the host computer. Overvoltage also can cause an electric shock hazard for the

operator. National Instruments is not liable for damage or injury resulting from misuse.

Connecting the Cables

Caution Do not connect the BNC-2110 to any device other than National Instruments

E Series, S Series, or waveform generation Multifunction DAQ devices. Doing so can

damage the BNC-2110, the DAQ device, or the host computer. National Instruments is not

liable for damage resulting from these connections.

The BNC-2110 has one 68-pin connector on the rear panel to connect to

your DAQ device. Refer to Table 1 to make this connection.

Table 1. BNC-2110 Connection Options

DAQ Device Required Cable

100-pin SCSI connector SH1006868

68-pin SCSI connector SH6868, SH68-68-EP, or R6868

68-pin DAQCard (VHDCI) connector SHC68-68-EP

BNC-2110 Installation Guide 4 ni.com

Configuring the BNC-2110

This section describes how to configure your BNC-2110 accessory.

Figure 2 shows the front panel of the BNC-2110.

Note With NI-DAQmx, National Instruments has revised its terminal names so they are

easier to understand and more consistent among NI hardware and software products.

The revised terminal names used in this document are usually similar to the names they

replace. For a complete list of traditional NI-DAQ terminal names and their NI-DAQmx

equivalents, refer to the Terminal Name Equivalences table in the ESeriesHelpat

ni.com/manuals.

Figure 2. BNC-2110 Front Panel

1 Floating Source (FS)/Ground-Referenced

Source (GS) Switch

2 BNC Connectors

3 Terminal Block Retaining Screws

4 Terminal Blocks for Digital and Timing I/O

5 Power Indicator Light

AI 0

AI 2 . AO 7 AI 3 . AO 6

AI 4 . AO 5 AI 5 . AO 4

AI 6 . AO 3 AI 7 . AO 2 PFI 0 / AI START CTR 0 OUT

AO 1 AO 0 USER 1 USER 2

NAME NAME

AI 1

AO EXT REF

PFI 9

PFI 8

PFI 7

PFI 6

PFI 5

PFI 4

PFI 3

PFI 2

PFI 1

D GND

DGND

USER 2

F OUT

+ 5V

P0.7

P0.6

P0.5

P0.4

P0.3

P0.2

P0.1

P0.0

CTR1OUT

D GND

AI GND

USER 1

AI HOLD

EXTSTRB*

AI SENSE

D GND

ANALOG IN ANALOG OUT

*Set to FS

with Analog

Output Boards

DIGITAL AND TIMING I/O

TRIGGER/COUNTER

USER–DEFINED SIGNALS

Floating

Source (FS)

Ground Ref.

Source (GS)

©National Instruments Corporation 5 BNC-2110 Installation Guide

The BNC-2110 is compatible with all E Series, S Series, and waveform

generation Multifunction DAQ devices. Some of the connectors on this

accessory may have a different function depending on the device to which

it is connected.

Table 2 describes the BNC connectors on the front panel of the BNC-2110.

Refer to the Connecting Digital/Timing I/O section for terminal block

connector descriptions.

For more detailed information about how the accessory terminals

correspond one-to-one to the Multifunction DAQ device, refer to the I/O

Connector Pinouts Table in the E Series Help at ni.com/manuals.

Connecting Analog Inputs (E Series and S Series Devices Only)

The BNC-2110 has BNC connectors for up to eight differential analog

input channels. These connectors are labeled AI <0..7>. The number of

connectors you use depends on your DAQ device and your application.

Table 2. BNC-2110 Connector Signal Descriptions

Front Panel BNC Connectors Signal Description

AI <0..1> Differential Analog Input channels 0 and 11

AI <2..7>/AO <7..2> Differential Analog Input channels 2 through 72or

Analog Output channels 7 through 23

AO <1..0> Analog Output channels 1 and 0

AO EXT REF External reference input connector for analog output

circuitry

PFI 0/AI START TRIG Programmable Function Input 0/Trigger 1—As an input,

one of the PFIs or the source for the hardware analog

trigger; as an output, the AI start trigger

CTR 0 OUT Counter 0 Output—Output terminal from

General-Purpose Counter 0

USER <1..2> User-defined 1 and 2—Connected to USER 1 and USER 2

digital terminal blocks; allow you to use a BNC connector

for a digital or timing I/O signal of your choice

1E Series devices only, reserved in waveform generation Multifunction DAQ devices

2When connected to E Series or S Series Multifunction DAQ devices

3When connected to waveform generation Multifunction DAQ devices

BNC-2110 Installation Guide 6 ni.com

Measuring Floating Signals

You can use the BNC-2110 to measure floating and ground-referenced

analog input signals. To measure floating signal sources, move the switch

located below the BNC connector for the AI channel you are using to the

floating source switch position (labeled FS). In the floating source switch

position, the amplifier negative terminal connects to ground through a

5kΩresistor in parallel with a 0.1 µF capacitor. Table 3 shows the

BNC-2110 switch configuration options.

Measuring Ground-Referenced Signals

To measure ground-referenced signals, move the switch to either

the floating or ground-referenced source position. For best results, use the

ground-referenced source position (labeled GS) to avoid ground loops.

Refer to your DAQ device documentation for more information on

measuring floating and ground-referenced signals.

Table 3. Configuration Summary

BNC-2110 Switch

Configuration

Signal Source Types for E Series Devices

Floating Source Ground-Referenced Source

Floating Source

(FS)

Ground-

Referenced Source

(GS)

–

Signal

Source BNC-2110

DAQ Device

(Differential Input

Mode)

AI GND

–

Recommended

–

Signal

Source BNC-2110

DAQ Device

(Differential Input

Mode)

AI GND

–

Not Recommended

–

Signal

Source BNC-2110

Improper Configuration

DAQ Device

(Differential Input

Mode)

–

AI GNDAI GND

AI GND

–

Signal

Source BNC-2110

DAQ Device

(Differential Input

Mode)

AI GND

–

Recommended

©National Instruments Corporation 7 BNC-2110 Installation Guide

Connecting Analog Outputs

The BNC-2110 has BNC connectors for up to eight analog output channels.

These connectors are labeled AO <0..7>. The number of AO connectors

you use depends on the DAQ device connected to the adapter and your

application. When using connectors AO <7..2>, make sure the switch is

in the FS position.

Connecting Digital/Timing I/O

Use both the Digital and Timing I/O spring terminals and the user-defined

BNC connectors to connect digital signals to your DAQ device. When

connecting signals to the spring terminals, you can use up to 24 AWG wire

with the insulation stripped to 0.28 in. Refer to Table 2 for a description of

the terminal block connectors.

The terminal blocks on the BNC-2110 are spring terminals for easy access.

You can change these blocks to screw terminals by installing the available

screw terminal kit.

Two user-defined BNC connectors, USER 1 and USER 2, are connected to

the terminal blocks on the BNC-2110 front panel. These terminals and their

associated BNC connectors give you the flexibility to choose up to two

additional digital/timing signals. For example, if an application requires

access to AI HOLD COMP and CTR 1 OUT signals, you can wire the

spring terminals labeled AI HOLD COMP and CTR 1 OUT to the spring

terminals labeled USER 1 and USER 2, respectively. This setup configures

BNC connector USER 1 as AI HOLD COMP and USER 2 as CTR 1 OUT.

All of the digital and timing signals from the E Series, S Series, and

waveform generation Multifunction DAQ devices are available on the front

panel of the BNC-2110. Refer to your DAQ device documentation for

information on using these signals.

Table 4 describes the digital terminals on the front panel of the BNC-2110.

Table 4. BNC-2110 Digital Terminal Descriptions

Terminal Description

PFI <1..9> Programmable Function Input lines 1 through 9

D GND Digital Ground—This pin supplies the reference for the

digital signals at the I/O connector as well as the +5 VDC

supply

USER 2 User-defined 2—Connected to USER 2 BNC, this terminal

provides a user-definable BNC terminal

F OUT Frequency Output—Output from the frequency generator

BNC-2110 Installation Guide 8 ni.com

Specifications

This section lists the specifications of the BNC-2110. These specifications

are typical at 25 °C unless otherwise specified.

Physical

Dimensions .............................................19.05 by 10.48 by 3.51 cm

(7.5 by 4.125 by 1.38 in.)

I/O connector ..........................................68-pin male connector

Environment

Operating temperature ............................0 to 70 °C

Storage temperature................................–55 to 125 °C

+5 V +5 V power—These pins are fused on the DAQ device and

are self-resetting; the current available depends on the

product to which it is connected

P0.<7..0> Digital input/output lines 7 through 0—P0.6 and 7 can

control the up/down signal of General-Purpose Counters 0

and 1, respectively

CTR 1 OUT Counter 1 Output—This is the output from

General-Purpose Counter 1

USER 1 User-defined 1—Connected to USER 1 BNC, this terminal

provides a user-definable BNC signal

AI HOLD AI Hold Complete—This pin pulses once for each

A/D conversion when enabled

EXSTRB*External Strobe—This signal controls external devices

under control of NI-DAQ

AI SENSE1Analog Input Sense—This pin serves as the reference node

for channels AI <0..15> in NRSE configurations

AI GND2Analog Input Ground—The analog input voltages are

referenced to this node

* Indicates active low

1Refer to your DAQ device user manual for more information on using this signal.

2E Series and S Series devices only

Table 4. BNC-2110 Digital Terminal Descriptions (Continued)

Terminal Description

©National Instruments Corporation 9 BNC-2110 Installation Guide

Relative humidity................................... 5 to 90% noncondensing

Safety

The BNC-2110 meets the requirements of the following standards for

safety and electrical equipment for measurement, control, and laboratory

use:

• IEC 61010-1, EN 61010-1

• UL 3111-1, UL 61010B-1

• CAN/CSA C22.2 No. 1010.1

Note For UL and other safety certifications, refer to the product label or to ni.com.

Electromagnetic Compatibility

Emissions ............................................... EN 55011 Class A at 10 m

FCC Part 15A above 1 GHz

Immunity................................................ EN 61326:1997 + A2:2001,

Table 1

EMC/EMI............................................... CE, C-Tick, and FCC Part 15

(Class A) Compliant

Note For EMC compliance, you must operate this device with shielded cabling.

CE Compliance

This product meets the essential requirements of applicable European

Directives, as amended for CE marking, as follows:

Low-Voltage Directive (safety) ............. 73/23/EEC

Electromagnetic Compatibility

Directive (EMC) .................................... 89/336/EEC

Note Refer to the Declaration of Conformity (DoC) for this product for any additional

regulatory compliance information. To obtain the DoC for this product, click Declarations

of Conformity Information at ni.com/hardref.nsf/. This Web site lists the DoCs by

product family. Select the appropriate product family, followed by your product, and a link

to the DoC appears in Adobe Acrobat format. Click the Acrobat icon to download or read

the DoC.

DAQCard™, National Instruments™, NI™, ni.com™, and NI-DAQ™ are trademarks of

National Instruments Corporation. Product and company names mentioned herein are trademarks or

trade names of their respective companies. For patents covering National Instruments products, refer

to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or

ni.com/patents.

321860E-01 May03

*321860E-01*

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