National Instruments sbRIO-9218 Getting Started Manual
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National Instruments sbRIO-9218 Getting Started Manual

Non-enclosed, 24-bit, 51.2 ks/s/channel, 2-channel c series universal analog input module
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GETTING STARTED GUIDE
sbRIO-9218
Non-Enclosed, 24-Bit, 51.2 kS/s/channel, 2-Channel C Series
Universal Analog Input Module
This document explains how to connect to the sbRIO-9218.
Note
Before you begin, read the sbRIO-9218 Safety, Environmental, and
Regulatory Information document on
and hardware installation procedures in your chassis documentation.
The guidelines in this document are specific to the sbRIO-9218. The other
Note
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.
ni.com/manuals
and complete the software

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  • Page 1 The guidelines in this document are specific to the sbRIO-9218. The other Note 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.
  • Page 2 Pinout V+ V– 2 | ni.com | sbRIO-9218 Getting Started Guide...
  • Page 3 Positive analog input signal connection Negative analog input signal connection Positive sensor excitation connection Negative sensor excitation connection Optional sensor excitation. Tie to pin 3. TEDS Class 1 data connection. sbRIO-9218 Getting Started Guide | © National Instruments Corporation | 3...
  • Page 4 Table 2. Signal Descriptions (Continued) Signal Description Positive remote sensing connection Negative remote sensing connection Shunt calibration connection TEDS data connection TEDS return connection 4 | ni.com | sbRIO-9218 Getting Started Guide...
  • Page 5 The sbRIO-9218 provides excitation for IEPE and bridge completion measurement types. • The sbRIO-9218 can provide optional 12 V sensor excitation for ±16 V, ±65 mV, and ±20 mA measurement types. sbRIO-9218 Getting Started Guide | © National Instruments Corporation | 5...
  • Page 6 ±16 V and ±65 mV Signal Conditioning Overvoltage Protection Prefilter Amplifier sbRIO-9218 Input signals on each channel are buffered, conditioned, and then sampled by an ADC. 6 | ni.com | sbRIO-9218 Getting Started Guide...
  • Page 7 Remote sensing continuously and automatically corrects for lead-wire induced excitation voltage loss when using the RS connections. • Shunt calibration can be used to correct for lead-wire induced desensitization of the bridge. sbRIO-9218 Getting Started Guide | © National Instruments Corporation | 7...
  • Page 8 Each channel is configured for AC coupling with an IEPE current. • Each channel provides a TEDS Class 1 interface. ±20 mA Signal Conditioning Current Overvoltage Shunt Protection Prefilter Amplifier sbRIO-9218 The NI-9983 provides a current shunt for the incoming analog signal. 8 | ni.com | sbRIO-9218 Getting Started Guide...
  • Page 9 You must connect AI+, EX+, and EX-. • RS+ and RS- connections are optional. • You do not need to connect the AI- signal because it is connected internally. sbRIO-9218 Getting Started Guide | © National Instruments Corporation | 9...

  • Page 10: Measurement Types

    • IEPE NI recommends using the NI-9982 screw-terminal adapter when using built- in measurement types on the sbRIO-9218. The sbRIO-9218 provides additional support for the following measurement types when using a measurement-specific adapter. • ±20 mA, requires the NI-9983 •...
  • Page 11 VEX- sbRIO-9218 The sbRIO-9218 provides optional 12 V sensor excitation. To use the 12 V excitation, connect a 9 V DC to 30 V DC power supply to Vsup, connect the excitation terminals on your sensor to EX+/EX-, and enable 12 V excitation in your software.
  • Page 12 You must connect AI- to EX- on the sbRIO-9218. • The sbRIO-9218 provides optional 12 V sensor excitation. To use the 12 V excitation, connect a 9 V DC to 30 V DC power supply to Vsup, connect the excitation terminals on your sensor to EX+/EX-, and enable 12 V excitation in your software.

  • Page 13: Full-Bridge Connections

    – – sbRIO-9218 • The sbRIO-9218 provides 2 V excitation to loads ≥120 Ω or 3.3 V excitation to loads ≥350 Ω. • The sbRIO-9218 provides optional connections for remote sensing (RS) and shunt calibration (SC). Remote sensing corrects for errors in excitation leads and shunt calibration corrects for errors caused by resistance within one leg of the bridge.
  • Page 14 IEPE Connections sbRIO-9218 • The sbRIO-9218 provides an excitation current for each channel that powers IEPE sensors. • AI+ provides DC excitation and AI- provides the excitation return path. ±20 mA Connections SUP+ SUP- VEX+ VEX- NI-9983 sbRIO-9218 14 | ni.com | sbRIO-9218 Getting Started Guide...
  • Page 15 Connecting ±20 mA signals requires the NI-9983. • The sbRIO-9218 provides optional 12 V sensor excitation. To use the 12 V excitation, connect a 9 V DC to 30 V DC power supply to Vsup, connect the excitation terminals on your sensor to EX+/EX-, and enable 12 V excitation in your software.

  • Page 16: Half-Bridge Connections

    • Connecting half bridges requires the NI-9986. • The sbRIO-9218 provides 2 V excitation to half bridges of ≥240 Ω total or 3.3 V excitation to half bridges of ≥700 Ω total. • The sbRIO-9218 provides optional connections for remote sensing (RS) and shunt calibration (SC).

  • Page 17: Teds Connections

    NI recommends 2 V excitation when using a NI-9984 with 120 Ω quarter bridges and 3.3 V excitation when using the NI-9985 with 350 Ω quarter bridges. TEDS Connections Data TEDS Enabled Sensor sbRIO-9218 For more information about TEDS, visit ni.com/r/rdteds. sbRIO-9218 Getting Started Guide | © National Instruments Corporation | 17...

  • Page 18: Custom Cabling Guidelines

    TEDS Support TEDS Class 1 sensors provide an interface for transferring information from sensors. The sbRIO-9218 and NI-9982F support TEDS Class 1 sensors. Custom Cabling Guidelines Observe the following guidelines when using the NI-9988 solder cup connector adapter to create custom cables.
  • Page 19 Measurement Adapter Grounding The ground terminals on a measurement adapter are connected to chassis ground when the measurement adapter is connected to the sbRIO-9218 and the sbRIO-9218 is installed in a chassis. sbRIO-9218 Getting Started Guide | © National Instruments Corporation | 19...
  • Page 20 Measurement Adapter Pinouts The following sections include pinouts for the sbRIO-9218 measurement adapters. NI-9982F ±16 V Connection Pinout — — — — — AI-, — Pins 3a and 3b are tied together. NI-9982F ±65 mV Connection Pinout — — —...
  • Page 21 NI-9982F Full-Bridge Connection Pinout — Pins 3a and 3b are tied together. NI-9982F IEPE Connection Pinout — — — — — — — Pins 3a and 3b are tied together. sbRIO-9218 Getting Started Guide | © National Instruments Corporation | 21...
  • Page 22 NI-9983F Pinout — — — — — Pins 3a and 3b are tied together. NI-9984F/9985F Pinout — — — — — — — 22 | ni.com | sbRIO-9218 Getting Started Guide...
  • Page 23 NI service offerings such as calibration options, repair, and replacement. Visit ni.com/register to register your NI product. Product registration facilitates technical support and ensures that you receive important information updates from NI. sbRIO-9218 Getting Started Guide | © National Instruments Corporation | 23...
  • Page 24 For patents covering NI products/ technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the National Instruments Patent Notice at ni.com/patents. You can find information about end-user license agreements (EULAs) and third-party legal notices in the readme file for your NI product.

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