Measurement Computing PCI-2513 User Manual
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Measurement Computing PCI-2513 User Manual

16 single-ended/8 differential analog inputs, 24 digital i/o, 4 32-bit counter input channels
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Summary of Contents for Measurement Computing PCI-2513

  • Page 2 PCI-2513 User's Guide Document Revision 6, December, 2010 © Copyright 2010, Measurement Computing Corporation...
  • Page 3 Your new Measurement Computing product comes with a fantastic extra — Management committed to your satisfaction! Thank you for choosing a Measurement Computing product—and congratulations! You own the finest, and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support. It’s the embodiment of our mission: ...

  • Page 4: Table Of Contents

    Table of Contents Preface About this User's Guide ........................6 What you will learn from this user's guide ......................6 Conventions in this user's guide ......................... 6 Where to find more information ......................... 6 Chapter 1 Introducing the PCI-2513 ........................7 Overview: PCI-2513 features ..........................
  • Page 5 PCI-2513 User's Guide Using detection setpoints for output control ..................... 27 What are detection setpoints? ............................27 Setpoint configuration overview ............................27 Setpoint configuration ..............................29 Using the setpoint status register............................30 Examples of control outputs ............................30 Detection setpoint details ..............................32 FIRSTPORTC or timer update latency ..........................33 Chapter 4 Calibrating the PCI-2513 ........................

  • Page 6: Preface

    Preface About this User's Guide What you will learn from this user's guide This user's guide explains how to install, configure, and use the PCI-2513 so that you get the most out of its analog input, digital I/O, and counter/timer I/O features. This user's guide also refers you to related documents available on our web site and to technical support resources.

  • Page 7: Introducing The Pci-2513

    Chapter 1 Introducing the PCI-2513 Overview: PCI-2513 features ® ® The PCI-2513 is supported under popular Microsoft Windows operating systems. The PCI-2513 provides either eight differential or 16 single-ended analog inputs with 16-bit resolution. It offers seven software-selectable analog input ranges of ±10 V, ±5 V, ±2 V, ±1 V, ±0.5 V, ±0.2 V, and ±0.1V. The board has 24 high-speed lines of digital I/O, two timer outputs, and four 32-bit counters.

  • Page 8: Installing The Pci-2513

    Chapter 2 Installing the PCI-2513 What comes with your PCI-2513 shipment? As you unpack your PCI-2513, verify that the following components are included. Hardware  PCI-2513 Optional components Cables and signal conditioning accessories that are compatible with the PCI-2513 are not included with PCI- 2513 orders, and must be ordered separately.

  • Page 9: Additional Documentation

    PCI-2513 User's Guide Installing the PCI-2513 Additional documentation In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf). This booklet supplies a brief description of the software you received with your PCI-2513 and information regarding installation of that software. Please read this booklet completely before installing any software or hardware.

  • Page 10: Configuring The Hardware

    PCI-2513 User's Guide Installing the PCI-2513 3. To test your installation and configure your board, run the InstaCal utility installed in the previous section. Refer to the Quick Start Guide shipped with the board for information on how to initially set up and load InstaCal.

  • Page 11: Connector Pinout

    PCI-2513 User's Guide Installing the PCI-2513 Connector pinout 16-channel single-ended mode pinout (8-channel differential signals in parentheses) Signal name Signal name ACH0 (ACH0 HI) ACH8 (ACH0 LO) AGND ACH1 (ACH1 HI) ACH9 (ACH1 LO) AGND ACH2 (ACH2 HI) ACH10 (ACH2 LO)

  • Page 12: Field Wiring And Signal Termination

    PCI-2513 User's Guide Installing the PCI-2513 Figure 2. CA-68-3S and CA-68-6S cable Field wiring and signal termination You can use the following MCC screw terminal boards to terminate field signals and route them into the PCI-2513 board using the CA-68-3R, CA-68-3S, or CA-68-6S cable: ...

  • Page 13: Chapter 3 Functional Details

    Chapter 3 Functional Details This chapter contains detailed information on all of the features available from the board, including:  a block diagram of board functions  information on how to use the signals generated by the board  diagrams of signals using default or conventional board settings PCI-2513 block diagram Figure 3 is a simplified block diagram of the PCI-2513.

  • Page 14: Bus Mastering Dma

    PCI-2513 User's Guide Functional Details Digital input channel sampling is not done during the "dead time" of the scan period where no analog sampling is being done either. The ability to scan digital and counter channels along with analog channels provides for a more deterministic collection of data.

  • Page 15: Digital I/O

    PCI-2513 User's Guide Functional Details Figure 4. Analog channel scan of voltage inputs example Digital I/O Twenty-four TTL-level digital I/O lines are included in each PCI-2513. You can program digital I/O in 8-bit groups as either inputs or outputs and scan them in several modes (see "Digital input...

  • Page 16: Digital Triggering

    PCI-2513 User's Guide Functional Details A note on the hardware analog level trigger and comparator change state When analog input voltage starts near the trigger level, and you are performing a rising or falling hardware analog level trigger, the analog level comparator may have already tripped before the sweep was enabled. If this is the case, the circuit waits for the comparator to change state.

  • Page 17: Stop Trigger Modes

    PCI-2513 User's Guide Functional Details Set pre-trigger > 0 when using counter as trigger source When using a counter for a trigger source, you should use a pre-trigger with a value of at least 1. Since all counters start at zero with the first scan, there is no valid reference in regard to rising or falling edge. Setting a pre-trigger to 1 or more ensures that a valid reference value is present, and that the first trigger will be legitimate.

  • Page 18: Mapped Channels

    PCI-2513 User's Guide Functional Details When reading synchronously, all counters are set to zero at the start of an acquisition. When reading asynchronously, counters may be cleared on each read, count up continually, or count until the 16 bit or 32 bit limit has been reached.

  • Page 19: Debounce Modes

    PCI-2513 User's Guide Functional Details Stop at the top mode The counter stops at the top of its count. The top of the count is FFFF hex (65,535) for the 16-bit mode, and FFFFFFFF hex (4,294,967,295) for the 32-bit mode.
  • Page 20 PCI-2513 User's Guide Functional Details Figure 6. Debounce model block diagram Trigger after stable mode In the trigger after stable mode, the output of the debounce module does not change state until a period of stability has been achieved. This means that the input has an edge, and then must be stable for a period of time equal to the debounce time.
  • Page 21 PCI-2513 User's Guide Functional Details The following time periods (T1 through T6) pertain to the above drawing.  T1 – In the illustrated example, the input signal is low for the debounce time (equal to T1); therefore when the input edge arrives at the end of time period T1, it is accepted and the output (of the debounce module) goes high.

  • Page 22: Encoder Mode

    PCI-2513 User's Guide Functional Details Figure 10.Optimal debounce time for trigger before stable mode Trigger after stable mode behaves more like a traditional debounce function: rejecting glitches and only passing state transitions after a required period of stability. Trigger after stable mode is used with electro-mechanical devices like encoders and mechanical switches to reject switch bounce and disturbances due to a vibrating encoder that is not otherwise moving.
  • Page 23 PCI-2513 User's Guide Functional Details Quadrature encoders generally have three outputs: A, B, and Z. The A and B signals are pulse trains driven by an optical sensor inside the encoder. As the encoder shaft rotates, a laminated optical shield rotates inside the encoder.
  • Page 24 PCI-2513 User's Guide Functional Details Maximizing encoder accuracy If there are 512 pulses on A, the encoder position is accurate to within 360°/512. For a position accuracy of 360°/1024, count both rising edges on A and falling edges on A.
  • Page 25 PCI-2513 User's Guide Functional Details The "A" signal must be connected to an even-numbered channel and the associated "B" signal must be connected to the next higher odd-numbered channel. For example, if "A" were connected to counter 0, then "B"...

  • Page 26: Timer Outputs

    PCI-2513 User's Guide Functional Details +5 VDC, pin 19 Ground (to Digital Common) Pin 35, 36, or 40 Counter 0 (CNT0), pin 5 – Counter 2 (CNT2), pin 4 – To Encoder #1 “A” To Encoder #2 “A” Counter 1 (CNT1), pin 39 –...

  • Page 27: Example: Timer Outputs

    PCI-2513 User's Guide Functional Details Example: Timer outputs Timer outputs are programmable square waves. The period of the square wave can be as short as 1 us or as long as 65535 µs. The table below lists some examples. Timer output frequency examples...
  • Page 28 PCI-2513 User's Guide Functional Details A channel's detect signal shows a rising edge and is True (1) when the channel's data meets the setpoint criteria. The detect signal shows a falling edge and is False (0) when the channel's data does not meet the setpoint criteria.

  • Page 29: Setpoint Configuration

    PCI-2513 User's Guide Functional Details Detection setpoints act on 16-bit data only. Since the PCI-2513 has 32-bit counters, data is returned 16-bits at a time. The lower word, the higher word, or both lower and higher words can be part of the scan group. Each counter input channel can have one detection setpoint for the counter's lower 16-bit value and one detection setpoint for the counter's higher 16-bit value.

  • Page 30: Using The Setpoint Status Register

    PCI-2513 User's Guide Functional Details Using the setpoint status register You can use the setpoint status register to check the current state of the 16 possible setpoints. In the register, Setpoint 0 is the least-significant bit and Setpoint 15 is the most-significant bit. Each setpoint is assigned a value of 0 or 1.
  • Page 31 PCI-2513 User's Guide Functional Details You can program control outputs programmed on each setpoint, and use the detection for channel 4 to update the FIRSTPORTC digital output port with one value (70 h in the example) when the analog input voltage is within the shaded region and a different value when the analog input voltage is outside the shaded region (30 h in the example).

  • Page 32: Detection Setpoint Details

    PCI-2513 User's Guide Functional Details Figure 20. Channel 3 in hysteresis mode Detecting setpoints on a totalizing counter In the following figure, Channel 1 is a counter in totalize mode. Two setpoints define a point of change for Detect 1 as the counter counts upward. The detect output is high when inside the window (greater than Limit B (the low limit) but less than Limit A (the high limit).

  • Page 33: Firstportc Or Timer Update Latency

    PCI-2513 User's Guide Functional Details In hysteresis mode, each setpoint has two forced update values. Each update value can drive one timer or the FIRSTPORTC digital output port. In hysteresis mode, the outputs do not change when the input values are inside the window.
  • Page 34 PCI-2513 User's Guide Functional Details When setting a detection window, keep a scan period in mind. This applies to analog inputs and counter inputs. Quickly changing analog input voltages can step over a setpoint window if not sampled often enough.

  • Page 35: Calibrating The Pci-2513

    Chapter 4 Calibrating the PCI-2513 Every range of a PCI-2513 device is calibrated at the factory using a digital NIST traceable calibration method. This method works by storing a correction factor for each range on the unit at the time of calibration. For analog inputs, the user can adjust the calibration of the board while it is installed in the acquisition system.

  • Page 36: Chapter 5 Specifications

    Chapter 5 Specifications All specifications are subject to change without notice. Typical for 25 °C unless otherwise specified. Specifications in italic text are guaranteed by design. Analog input Table 1. Analog input specifications A/D converter type Successive approximation Resolution 16 bits Number of channels 16 single-ended/8 differential, software-selectable Input ranges (SW programmable)

  • Page 37: Digital Input / Output

    PCI-2513 User's Guide Specifications Note 2: Noise reflects 10,000 samples at 1 MHz, typical, differential short, using CA-68-3S cable. Digital input / output Table 3. Digital input/output specifications Number of I/O Ports Three banks of eight. Each port is programmable as input or output...

  • Page 38: Input Sequencer

    PCI-2513 User's Guide Specifications Input sequencer Analog, digital, and counter inputs can be scanned based on either an internal programmable timer or an external clock source. Table 5. Input sequencer specifications Scan clock sources: two (Note Internal:  Analog channels from 1 µs to 1 sec in 20.83 ns steps ...

  • Page 39: Trigger Sources And Modes

    PCI-2513 User's Guide Specifications Trigger sources and modes Table 7. Trigger sources and modes  Single channel analog hardware trigger Input scan trigger sources  Single channel analog software trigger  External-single channel digital trigger (TTL TRG input)  Digital pattern trigger ...

  • Page 40: Mechanical

    PCI-2513 User's Guide Specifications Mechanical Table 11. Mechanical specifications Vibration MIL STD 810E cat 1 and 10 165 mm (W) x 15 mm (D) x 108 mm (H) (6.5‖ x 0.6‖ x 4.2‖) Dimensions Weight 160 g (0.35 lbs) Main connector and pinout Table 12.
  • Page 41 PCI-2513 User's Guide Specifications Table 14. 8-channel differential pinout Function Function ACH0 HI ACH0 LO AGND ACH1 HI ACH1 LO AGND ACH2 HI ACH2 LO AGND ACH3 HI ACH3 LO AGND SGND (low level sense – not for general use)

  • Page 42: Declaration Of Conformity

    Declaration of Conformity Manufacturer: Measurement Computing Corporation Address: 10 Commerce Way Suite 1008 Norton, MA 02766 Category: Information technology equipment. Measurement Computing Corporation declares under sole responsibility that the product PCI-2513 to which this declaration relates is in conformity with the relevant provisions of the following standards or other documents: EC EMC Directive 2004/108/EC: Electromagnetic Compatibility, EN 61326-1:2006, (IEC 61326-1:2005) Emissions: Group 1, Class A...
  • Page 43 Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton, Massachusetts 02766 (508) 946-5100 Fax: (508) 946-9500 E-mail: info@mccdaq.com www.mccdaq.com...

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