National Instruments NI 9403 User manual

NI-9403 Getting
Started
2022-07-06

Contents
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Guidelines for Hazardous Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electromagnetic Compatibility Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Special Conditions for Marine Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preparing the Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Connecting the NI 9403. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting Digital Devices to the NI-9403. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Overcurrent/Short-Circuit Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Where to Go Next. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
NI Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ni.com
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NI-9403 Getting Started

Overview
This document explains how to connect to the NI-9403.
Note Before you begin, read the NI-9403 Safety, Environmental, and
Regulatory Information document on ni.com/manuals and complete the
soware and hardware installation procedures in your chassis
documentation.
Note The guidelines in this document are specific to the NI-9403. The
other components in the system might not meet the same safety ratings.
Refer to the documentation for each component in the system to
determine the safety and EMC ratings for the entire system.
Safety Guidelines
Caution Observe all instructions and cautions in the user documentation.
Using the product in a manner not specified can damage the product and
compromise the built-in safety protection.
Attention Suivez toutes les instructions et respectez toutes les mises
en garde de la documentation d'utilisation. L'utilisation du produit de
toute autre façon que celle spécifiée risque de l'endommager et de
compromettre la protection de sécurité intégrée.
Safety Voltages
Connect only voltages that are within the following limits:
Channel-to-COM ±30 V maximum on up to 8 channels at a time, Measurement Category I
Isolation
© National Instruments 3
NI-9403 Getting Started

Channel-to-channel None
Channel-to-earth ground
Continuous 60 V DC, Measurement Category I
Withstand
Up to 3,000 m altitude 1,000 V RMS, verified by a 5 s dielectric withstand test
Up to 5,000 m altitude 860 V RMS, verified by a 5 s dielectric withstand test
Safety Guidelines for Hazardous Locations
The NI-9403 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 Gc and Ex nA IIC T4 Gc hazardous locations;
and nonhazardous locations only. Follow these guidelines if you are installing the
NI-9403 in a potentially explosive environment. Not following these guidelines may
result in serious injury or death.
Caution Do not disconnect I/O-side wires or connectors unless power has
been switched o or the area is known to be nonhazardous.
Caution Do not remove modules unless power has been switched o or
the area is known to be nonhazardous.
Caution Substitution of components may impair suitability for Class I,
Division 2, or Zone 2.
Caution The system must be installed in an enclosure certified for the
intended hazardous (classified) location, having a tool secured cover/door,
where a minimum protection of at least IP54 is provided.
Caution For Division 2 and Zone 2 applications, connected signals must
be within the following limits.
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NI-9403 Getting Started

Capacitance 0.2 µF maximum
Special Conditions for Hazardous Locations Use in Europe and
Internationally
The NI-9403 has been evaluated as Ex nA IIC T4 Gc equipment under
DEMKO 07ATEX 0626664X and is IECEx UL 14.0089X certified. Each NI-9403 is marked
II 3G and is suitable for use in Zone 2 hazardous locations, in ambient
temperatures of -40 °C ≤ Ta ≤ 70 °C. If you are using the NI-9403 in Gas Group IIC
hazardous locations, you must use the device in an NI chassis that has been
evaluated as Ex nC IIC T4, Ex IIC T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.
Caution Transient protection shall be provided that is set at a level not
exceeding 140% of the peak rated voltage value of 85 V at the supply
terminals to the equipment.
Caution The system shall only be used in an area of not more than
Pollution Degree 2, as defined in IEC/EN 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.
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.
© National Instruments 5
NI-9403 Getting Started

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 approved for marine (shipboard) applications. To verify marine
approval certification for a product, visit ni.com/product-certifications, search by
model number, and click the appropriate link.
Notice 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.
Preparing the Environment
Ensure that the environment in which you are using the NI-9403 meets the following
specifications.
Operating temperature (IEC 60068-2-1, IEC 60068-2-2) -40 °C to 70 °C
Operating humidity (IEC 60068-2-30) 10% RH to 90% RH, noncondensing
Pollution Degree 2
Maximum altitude 5,000 m
Indoor use only.
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NI-9403 Getting Started

Note Refer to the NI-9403 Specifications on ni.com/manuals for
complete specifications.
Connecting the NI 9403
The NI-9403 provides connections for 32 digital input/output channels.
Figure 1. NI 9403 Pinout
DIO16
DIO17
DIO18
DIO19
DIO20
DIO21
DIO22
DIO23
COM
COM
DIO24
DIO25
DIO26
DIO27
DIO28
DIO29
DIO30
DIO31
DIO0
DIO1
DIO2
DIO3
DIO4
DIO5
DIO6
DIO7
COM
COM
DIO8
DIO9
DIO10
DIO11
DIO12
DIO13
DIO14
DIO15
RSVD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Signal Name Description
DIO Each channel includes a DIO pin to which you can connect a digital input or output
device.
COM DIO channels are internally referenced to COM, so you can use any of the four COM
lines as a reference for the external signal.
RSVD This channel is reserved and is not a user-facing signal.
Table 1. NI-9403 Signal Descriptions
Connecting Digital Devices to the NI-9403
You can connect digital devices to the NI-9403.
© National Instruments 7
NI-9403 Getting Started

Figure 2. Connecting Digital Devices to the NI-9403
TTL Signal
+5 V
+5 V
LED
DIO0 as Input
DIO1 as Input
COM
DIO2 as Output
NI 9403Device 3
Device 2
Device 1
Overcurrent/Short-Circuit Protection
The overcurrent protection allows only a specified amount of current through the
output channels to protect the NI-9403 from short circuits. If the NI-9403 goes into
an overcurrent state, the module sets all the DIO channels to high impedance for
approximately 280 ms.
When the channels are in an overcurrent state, the NI-9403 can accept new line
direction configuration and output state data but cannot pass valid input data to the
soware.
Aer the overcurrent protection period, the NI-9403 automatically recovers to the
latest direction configuration and output state. If the overcurrent condition still
exists, the module again sets the channels to high impedance. This cycle continues
until the overcurrent condition is removed.
Where to Go Next
ni.com
8
NI-9403 Getting Started

Located at ni.com/manuals Installs with the software
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© National Instruments 9
NI-9403 Getting Started
© 2022 National Instruments Corporation.