National Instruments myRIO-1950 User Manual

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USER GUIDE AND SPECIFICATIONS
NI myRIO-1950
The National Instruments myRIO-1950 is an embedded reconfigurable I/O (RIO) device that
students can use to design control, robotics, and mechatronics systems. This document contains
pinouts, connectivity information, dimensions, mounting instructions, and specifications for the
NI myRIO-1950.
1
11
10
9
1
Reset Button
2
Power Connector
3
Device USB Connector
4
Host USB Connector
5
Mounting Hole Connected to Chassis Ground (x6)
6
LEDs
Figure 1. NI myRIO-1950
2
3
4
7
8
POWER
STATUS
5
6
LED 0
LED 1
LED 2
LED 3
7
DDR3 Memory
8
User Button
9
MXP Connector B, Pin 1
10 Processor/FPGA
11 MXP Connector A, Pin 1

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Summary of Contents for National Instruments myRIO-1950

  • Page 1 USER GUIDE AND SPECIFICATIONS NI myRIO-1950 The National Instruments myRIO-1950 is an embedded reconfigurable I/O (RIO) device that students can use to design control, robotics, and mechatronics systems. This document contains pinouts, connectivity information, dimensions, mounting instructions, and specifications for the NI myRIO-1950.
  • Page 2: Safety Information

    Furthermore, any modifications to the product not expressly approved by National Instruments could void your authority to operate it under your local regulatory rules.
  • Page 3: Esd Warning

    Industry-standard ESD precautions must be employed at all times. The NI myRIO-1950 is designed and intended for use as a development platform for hardware or software in an educational/professional laboratory environment. To facilitate usage, the board is manufactured with its components and connecting traces openly exposed to the operator and the environment.
  • Page 4: Hardware Overview

    Hardware Overview The NI myRIO-1950 provides analog input (AI), analog output (AO), digital input and output (DIO), and power output in a compact embedded device. The NI myRIO-1950 connects to a host computer over USB. The following figure shows the arrangement and functions of NI myRIO-1950 components.
  • Page 5: Connector Pinouts

    Connector Pinouts NI myRIO-1950 Expansion Port (MXP) connectors A and B carry identical sets of signals. The signals are distinguished in software by the connector name, as in ConnectorA/DIO1 . Refer to the software documentation for information about configuring ConnectorB/DIO1 and using signals.
  • Page 6: Analog Input Channels

    Reference for digital signals, +5 V, and +3.3 V. Analog Input Channels The NI myRIO-1950 has analog input channels on myRIO Expansion Port (MXP) connectors A and B. The analog inputs are multiplexed to a single analog-to-digital converter (ADC) that samples all channels.
  • Page 7: Analog Output Channels

    Analog Output Channels The NI myRIO-1950 has analog output channels on myRIO Expansion Port (MXP) connectors A and B. Each analog output channel has a dedicated digital-to-analog converter (DAC), so they can all update simultaneously. The DACs for the analog output channels are controlled by a serial communication bus from the FPGA.
  • Page 8: Dio Lines

    Maximum Negative Reading = -2048 * 3.906 mg = -8.000 g DIO Lines The NI myRIO-1950 has 3.3 V general-purpose DIO lines on the MXP connectors. MXP connectors A and B have 16 DIO lines per connector. Each DIO line from 0 to 13 has a 40 kΩ...
  • Page 9: Uart Lines

    When the NI myRIO-1950 is in safe mode, you can communicate with it by using the UART lines on MXP connector A. You need the following items to communicate with the myRIO device over UART: •...
  • Page 10: Status Led

    Status LED The Status LED is off during normal operation. The NI myRIO-1950 runs a power-on self test (POST) when you apply power to the device. During the POST, the Power and Status LEDs turn on. When the Status LED turns off, the POST is complete. The NI myRIO-1950 indicates specific error conditions by flashing the Status LED a certain number of times every few seconds, as shown in Table 2.
  • Page 11: Ni Myrio-1950 Physical Dimensions

    Ø is 6.86 mm (0.27 in.) 16.5 mm (0.65 in.) 12.0 mm 8.0 mm (0.31 in.) (0.47 in.) 0.0 mm 6 x Ø 3.2 mm (0.0 in.) (0.13 in.) NI myRIO-1950 User Guide and Specifications | © National Instruments | 11...
  • Page 12 Figure 11. NI myRIO-1950 Dimensions, User End 11.2 mm (0.44 in.) 2.1 mm (0.08 in.) 6.1 mm (0.24 in.) 0.0 mm (0.0 in.) 0.0 mm 66.0 mm (0.0 in.) (2.6 in.) 12 | ni.com | NI myRIO-1950 User Guide and Specifications...
  • Page 13 Connecting Sensors and Devices to the NI myRIO-1950 In order to connect sensors and actuators to the NI myRIO-1950, you must provide wiring to the inputs and outputs on the MXP connectors. For templates with dimensional drawings for daughterboards to connect to the MXP connectors, go to and enter the Info Code ni.com/info...
  • Page 14: Understanding Ground Connections

    When connecting the NI myRIO-1950 to external devices, ensure that stray ground currents do not use the NI myRIO-1950 as a return path. Significant stray currents can cause device failure. After final assembly of your system, use a current probe to compare the current flowing out of the power connector with the current flowing into the power connector.
  • Page 15: Analog Output

    Input high voltage, V ......2.0 V min; 5.25 V max Output logic levels Output high voltage, V sourcing 4 mA .......... 2.4 V min; 3.465 V max NI myRIO-1950 User Guide and Specifications | © National Instruments | 15...
  • Page 16: Power Output

    Output voltage...........4.75 V to 5.25 V Maximum current on each connector ..100 mA +3.3 V power output Output voltage...........3.0 V to 3.6 V Maximum current on each connector ..150 mA 16 | ni.com | NI myRIO-1950 User Guide and Specifications...
  • Page 17: Power Requirements

    NI myRIO-1950 requires a power supply connected to the power connector. You must use either the NI myRIO power supply, part number 723403-01, Caution or another UL Listed ITE power supply marked LPS, with the NI myRIO-1950. Power supply voltage range......6-16 VDC Maximum power consumption ......14 W Typical idle power consumption.......
  • Page 18: Electromagnetic Compatibility

    For UL and other safety certifications, refer to the product label or the Online Note Product Certification section. Using the NI myRIO-1950 in a manner not described in this document Caution may impair the protection the NI myRIO-1950 provides. Hazardous Locations The NI myRIO-1950 is not certified for use in hazardous locations.
  • Page 19: Warranty

    RoHS Warranty For customers other than private individual users in the EU: The NI myRIO-1950 is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective during the warranty period.
  • Page 20 NI product. Refer to the Export Compliance Information at ni.com/legal/export-compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data. © 2013–2018 National Instruments. All rights reserved.

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