OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9381 0 V to 5 V, 12-Bit, Multifunction Input/Output Module Français Deutsch ni.com/manuals This document describes how to use the National Instruments 9381 and includes specifications and pin assignments for the NI 9381. For information about installing, configuring, and programming the system, refer to the system documentation. Visit ni.com/info and enter the following Info Codes: • cseriesdoc—for information about C Series and system • compatibility—for information about chassis and carrier documentation. compatibility for the modules you are using. • rdsoftwareversion—for information about which software you need for the modules you are using. Note The safety guidelines and specifications in this document are specific to the NI 9381. The other components in the system might not meet the same safety ratings and specifications. Refer to the documentation for each component in the system to determine the safety ratings and specifications for the entire system. Visit ni.com/info and enter cseriesdoc for information about C Series documentation. 2 | ni.com | NI 9381 Safety Guidelines Operate the NI 9381 only as described in these operating instructions. Hot Surface This icon denotes that the component may be hot. Touching this component may result in bodily injury. Do not operate the NI 9381 in a manner not specified in these operating instructions. 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 National Instruments for repair Caution Safety Guidelines for Hazardous Locations The NI 9381 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 9381 in a potentially explosive environment. Not following these guidelines may result in serious injury or death. NI 9381 | © National Instruments | 3 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 IP 54 as defined by IEC/EN 60529. Caution For Division 2 and Zone 2 applications, connected low impedance sources must include a protection device installed between the source and the AI and DIO terminals. The protection device must prevent the AI to ground voltage and DIO to ground voltage from exceeding 42 V if there is a transient overvoltage condition. Caution 4 | ni.com | NI 9381 Special Conditions for Hazardous Locations Use in Europe This equipment has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO 12 ATEX 1202658X. Each module 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 9381 in Gas Group IIC hazardous locations, you must use the device in an NI chassis that has been evaluated as Ex nC IIC T4, EEx nC IIC T4, Ex nA IIC T4, or Ex nL IIC T4 equipment. You must make sure that transient disturbances do not exceed 140% of the rated voltage. Caution 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. The enclosure must have a door or cover accessible only by the use of a tool. Caution NI 9381 | © National Instruments | 5 Electromagnetic Compatibility Guidelines This product was tested and complies with the regulatory requirements and limits for electromagnetic compatibility (EMC) as stated in the product specifications. These requirements and limits are designed to provide reasonable protection against harmful interference when the product is operated in its intended operational electromagnetic environment. This product is intended for use in industrial locations. There is no guarantee that harmful interference will not occur in a particular installation, when the product is connected to a test object, or if the product is used in residential areas. To minimize the potential for the product to cause interference to radio and television reception or to experience 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. To ensure the specified EMC performance, operate this product only with shielded cables and accessories. Caution 6 | ni.com | NI 9381 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. NI 9381 | © National Instruments | 7 Connecting the NI 9381 The NI 9381 provides connections for 8 analog input channels, 8 analog output channels, and 4 DIO channels. Figure 1. NI 9381 Pin Assignments GND AO2 AO3 GND AO6 AO7 GND GND GND GND GND GND GND GND GND GND GND GND 8 | ni.com | NI 9381 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 AO0 AO1 GND AO4 AO5 GND AI0 AI1 AI2 AI3 AI4 AI5 AI6 AI7 DIO0 DIO1 DIO2 DIO3 GND Connecting Single-Ended Voltage Signals Refer to Figure 2 for an illustration of connecting single-ended voltage signals to the module. Figure 2. Connecting a Single-Ended Voltage Signal to the Module AI Voltage Source + – GND NI 9381 NI 9381 | © National Instruments | 9 Connecting a Load Refer to Figure 3 for an illustration of connecting a load to the module. Figure 3. Connecting a Load to the Module AO Load GND NI 9381 10 | ni.com | NI 9381 NI 9381 Circuitry The module provides an analog-to-digital converter (ADC), eight digital-to-analog converters (DAC), and four digital lines. Analog Input The analog input channels are conditioned and sampled by a 12-bit ADC. Figure 4. NI 9381 Analog Input Circuitry for One Channel AIx GND MUX ADC 12-bit ADC NI 9381 Analog Input Accuracy To ensure fast settling times, use signal sources that have an impedance smaller than 1 kΩ. Large source impedances increase the settling time of the ADC, which decreases the accuracy at fast scanning rates. NI 9381 | © National Instruments | 11 Analog Output The analog output channels have a DAC that produces a voltage signal. Figure 5. NI 9381 Analog Output Circuitry for One Channel DAC 12-bit DAC NI 9381 12 | ni.com | NI 9381 Amp AOx GND Digital Input/Output You can configure each DIO channel of the NI 9381 in software for input or output. Changing the direction on any channel will not affect the direction on the other channels. Refer to the software help for information about configuring channel direction. Line direction logic enables/disables the line input and output transceiver. Figure 6. NI 9381 Digital Input/Output for One Channel Line Direction DIOx Digital I/O GND NI 9381 NI 9381 | © National Instruments | 13 Timing Considerations You can use the AI, AO, and DIO channels on the NI 9381 concurrently. However, you should consider the following guidelines when designing your application to ensure high accuracy. • Use a single I/O Node to access AI and AO operations to ensure proper sequencing. • Configure the line direction of the DIO channels before performing operations on other channels or stop all operations to change the line direction of a DIO channel. Refer to the NI-RIO Software Help for more information about NI 9381 timing. 14 | ni.com | NI 9381 Sleep Mode This module supports a low-power sleep mode. Support for sleep mode at the system level depends on the chassis that the module is plugged into. Refer to the chassis manual for information about support for sleep mode. If the chassis supports sleep mode, refer to the software help for information about enabling sleep mode. Visit ni.com/info and enter cseriesdoc for information about C Series documentation. Typically, when a system is in sleep mode, you cannot communicate with the modules. In sleep mode, the system consumes minimal power and may dissipate less heat than it does in normal mode. Refer to the Specifications section for more information about power consumption and thermal dissipation. NI 9381 | © National Instruments | 15 Specifications The following specifications are typical for the range –40 °C to 70 °C unless otherwise noted. Input/Output Characteristics MTBF ............................................... Contact NI for Bellcore MTBF or MIL-HDBK-217F specifications. Analog Input Number of channels.......................... 8 single-ended analog input channels ADC resolution................................. 12 bits Type of ADC..................................... Successive approximation register (SAR) Input range ........................................ 0 V to 5 V ±1% DNL .................................................. ±1.25 LSB Conversion time................................ 50 µs (20 kS/s) Input coupling................................... DC Input impedance................................ 1 MΩ in parallel with 50 pF 16 | ni.com | NI 9381 Bandwidth......................................... 1 kHz Accuracy1 Measurement Conditions Percent of Reading (Gain Error) Offset Error Calibrated max (–40 °C to 70 °C) ±0.70% ±13 mV Calibrated typ (23 °C ±5 °C) ±0.15% ±6.5 mV Uncalibrated max (–40 °C to 70 °C) ±1.00% ±16 mV Uncalibrated typ (23 °C ±5 °C) ±0.50% ±7.5 mV Stability Gain drift .................................... 80 ppm/°C Offset drift .................................. 85 µV/°C Analog Output Number of channels.......................... 8 analog output channels DAC resolution................................. 12 bits 1 Accuracy is impacted for AC signals by an amount equal to 4.0f μV, where f is the signal frequency in hertz. NI 9381 | © National Instruments | 17 Type of DAC..................................... String Startup voltage .................................. 0 V Output range ..................................... 0 V to 5 V ±1% Current drive..................................... ±1 mA Output impedance............................. 5 Ω Accuracy1 Percent of Reading (Gain Error) Offset Error Calibrated max (–40 °C to 70 °C) ±1.02% ±23.5 mV Calibrated typ (23 °C ±5 °C) ±0.19% ±5 mV Uncalibrated max (–40 °C to 70 °C) ±1.9% ±50 mV Uncalibrated typ (23 °C ±5 °C) ±0.6% ±10 mV Measurement Conditions 1 Accuracy is impacted for AC signals by an amount equal to 4.0f μV, where f is the signal frequency in hertz. 18 | ni.com | NI 9381 Stability Gain drift .................................... 85 ppm/°C Offset drift .................................. 180 µV/°C Update time....................................... 50 µs (20 kS/s) Short-circuit protection..................... Indefinitely Slew rate ........................................... 30 V/ms Settling time...................................... 900 µs DNL .................................................. ±1 LSB Capacitive drive ................................ 1,500 pF Digital Input/Output Number of channels.......................... 4 digital input/output channels Default power-on line direction........ Input Input/output type............................... LVTTL, single-ended NI 9381 | © National Instruments | 19 Digital logic levels Maximum input voltage ............. 5.2 V Input high, VIH ..................... 2 V Input low, VIL ....................... 0.8 V Output high, VOH Sourcing 100 µA.................. 2.7 V Output low, VOL Sinking 100 µA.................... 0.2 V Maximum I/O switching frequency.......................... 1 MHz Capacitive drive ................................ 100 pF Power Requirements Power consumption from chassis Active mode ............................... 600 mW max Sleep mode ................................. 1 mW max Thermal dissipation (at 70 °C) Active mode ............................... 600 mW max Sleep mode ................................. 1 mW max 20 | ni.com | NI 9381 Physical Characteristics If you need to clean the module, wipe it with a dry towel. Note For two-dimensional drawings and three-dimensional models of the C Series module and connectors, visit ni.com/dimensions and search by module number. Weight............................................... 145 g (5.1 oz) Safety Isolation Voltages Channel-to-channel .................... None Channel-to-earth ground ............ None NI 9381 | © National Instruments | 21 Hazardous Locations U.S. (UL) .......................................... Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, AEx nA IIC T4 Canada (C-UL) ................................. Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, Ex nA IIC T4 Europe (DEMKO) ............................ Ex nA IIC T4 Gc Safety Standards This product meets the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use: • IEC 61010-1, EN 61010-1 • UL 61010-1, CSA 61010-1 Note For UL and other safety certifications, refer to the product label or the Online Product Certification section. 22 | ni.com | NI 9381 Electromagnetic Compatibility This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use: • EN 61326-1 (IEC 61326-1): Class A emissions; Industrial immunity • EN 55011 (CISPR 11): Group 1, Class A emissions • AS/NZS CISPR 11: Group 1, Class A emissions • FCC 47 CFR Part 15B: Class A emissions • ICES-001: Class A emissions Note In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia and New Zealand (per CISPR 11) Class A equipment is intended for use only in heavy-industrial locations. NI 9381 | © National Instruments | 23 Note Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generates radio frequency energy for the treatment of material or inspection/analysis purposes. Note For EMC declarations and certifications, refer to the Online Product Certification section. CE Compliance This product meets the essential requirements of applicable European Directives as follows: • 2006/95/EC; Low-Voltage Directive (safety) • 2004/108/EC; Electromagnetic Compatibility Directive (EMC) Online Product Certification To obtain product certifications and the Declaration of Conformity (DoC) for this product, visit ni.com/certification, search by module number or product line, and click the appropriate link in the Certification column. 24 | ni.com | NI 9381 Shock and Vibration To meet these specifications, you must panel mount the system. Operating vibration Random (IEC 60068-2-64)......... 5 grms, 10 Hz to 500 Hz Sinusoidal (IEC 60068-2-6) ....... 5 g, 10 Hz to 500 Hz Operating shock (IEC 60068-2-27).............................. 30 g, 11 ms half sine, 50 g, 3 ms half sine, 18 shocks at 6 orientations Environmental Refer to the manual for the chassis you are using for more information about meeting these specifications. Operating temperature (IEC 60068-2-1, IEC 60068-2-2) ..... –40 °C to 70 °C Storage temperature (IEC 60068-2-1, IEC 60068-2-2) ..... –40 °C to 85 °C Ingress protection.............................. IP 40 Operating humidity (IEC 60068-2-56).............................. 10% to 90% RH, noncondensing NI 9381 | © National Instruments | 25 Storage humidity (IEC 60068-2-56).............................. 5% to 95% RH, noncondensing Pollution Degree ............................... 2 Maximum altitude............................. 2,000 m Indoor use only. Environmental Management NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers. For additional environmental information, refer to the NI and the Environment Web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document. Waste Electrical and Electronic Equipment (WEEE) EU Customers At the end of the product life cycle, all products must be sent to a WEEE recycling center. For more information about WEEE recycling centers, 26 | ni.com | NI 9381 National Instruments WEEE initiatives, and compliance with WEEE Directive 2002/96/EC on Waste and Electronic Equipment, visit ni.com/environment/ weee. ⬉ᄤֵᙃѻક∵ᶧࠊㅵ⧚ࡲ⊩ ˄Ё RoHS˅ Ёᅶ᠋ National Instruments ヺড়Ё⬉ᄤֵᙃ ѻકЁ䰤ࠊՓ⫼ᶤѯ᳝ᆇ⠽䋼ᣛҸ (RoHS)DŽ݇Ѣ National Instruments Ё RoHS ড়㾘ᗻֵᙃˈ䇋ⱏᔩ ni.com/environment/rohs_chinaDŽ (For information about China RoHS compliance, go to ni.com/ environment/rohs_china.) Calibration You can obtain the calibration certificate and information about calibration services for the NI 9381 at ni.com/calibration. Where to Go for Support The National Instruments Web site is your complete resource for technical support. At ni.com/support you have access to everything from troubleshooting and application development NI 9381 | © National Instruments | 27 self-help resources to email and phone assistance from NI Application Engineers. National Instruments corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. National Instruments also has offices located around the world to help address your support needs. For telephone support in the United States, create your service request at ni.com/support and follow the calling instructions or dial 512 795 8248. For telephone support outside the United States, visit the Worldwide Offices section of ni.com/niglobal to access the branch office Web sites, which provide up-to-date contact information, support phone numbers, email addresses, and current events. 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