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Related Manuals for Measurement Computing PCI-2511
Summary of Contents for Measurement Computing PCI-2511
- Page 1 PCI-2511 16-Bit, 1 MS/s Analog Input Board User's Guide January 2019. Rev 10 © Measurement Computing Corporation...
- Page 2 Other product and company names mentioned herein are trademarks or trade names of their respective companies. © 2019 Measurement Computing Corporation. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, by photocopying, recording, or otherwise without the prior written permission of Measurement Computing Corporation.
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Page 3: Table Of Contents
What you will learn from this user's guide ......................5 Conventions in this user's guide ......................... 5 Where to find more information ......................... 5 Chapter 1 Introducing the PCI-2511 ........................6 Overview: PCI-2511 features ..........................6 Chapter 2 Installing the PCI-2511 .......................... 7 Unpacking................................ - Page 4 PCI-2511 User's Guide Chapter 4 Calibrating the PCI-2511 ........................29 Chapter 5 Specifications ............................30 Analog input ..............................30 Accuracy ..................................30 Digital input / output ............................31 Counters ................................31 Input sequencer ..............................32 Frequency/pulse generators ..........................32 Trigger sources and modes ..........................33 Power consumption ............................
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Page 5: 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-2511 so that you get the most out of its analog input, digital I/O, and counter/timer I/O features. -
Page 6: Introducing The Pci-2511
Chapter 1 Introducing the PCI-2511 Overview: PCI-2511 features The PCI-2511 board is a multifunction measurement and control board that is supported under popular Microsoft ® Windows ® operating systems. The PCI-2511 provides the following features: 16 single-ended analog inputs with 16-bit resolution and ±10 V input range ... -
Page 7: Installing The Pci-2511
Contact us immediately if any components are missing or damaged. Installing the software Refer to the MCC DAQ Quick Start and the PCI-2511 product page on our website for information about the software that supports the device. Install the software before you install your device The driver needed to run the PCI-2511 is installed with the software. -
Page 8: Configuring The Hardware
Installing the PCI-2511 Configuring the hardware All hardware configuration options on the PCI-2511 are software-controlled. You can select some of the configuration options using InstaCal, such as the edge used for pacing when using an external clock. Once selected, any program that uses the Universal Library initializes the hardware according to these selections. -
Page 9: Cabling
Installing multiple boards PCI-2511 features can be replicated up to four times, as up to four boards can be installed in a single host PC. The serial number on each PCI-2511 distinguishes one from another. You can operate multiple PCI-2511 boards synchronously. -
Page 10: Functional Details
Synchronous I/O – mixing analog, digital, and counter scanning The PCI-2511 can read analog, digital, and counter inputs, while generating digital pattern outputs at the same time. Digital and counter inputs do not affect the overall A/D rate because these inputs use no time slot in the scanning sequencer. -
Page 11: Bus Mastering Dma
The PCI-2511 supports bus mastering DMA. With multiple DMA channels, analog, digital, and counter input data, as well as digital output data, can flow between the PC and the PCI-2511 without consuming valuable CPU time. The driver supplied with the PCI-2511 automatically uses bus mastering DMA to efficiently conduct I/O from the PC to the PCI-2511. -
Page 12: Digital I/O
Digital outputs can be updated asynchronously any time before, during, or after an acquisition. You can use two of the 8-bit ports to generate a digital pattern at up to 4 MHz. The PCI-2511 supports digital pattern generation with bus mastering DMA. The digital pattern can be read from PC RAM. -
Page 13: Digital Triggering
Software-based triggering usually results in a long period of inactivity between the trigger condition being detected and the data being acquired. However, the PCI-2511 avoids this situation by using pre-trigger data. When software-based-triggering is used, and the PC detects the trigger condition—which may be thousands of readings after the actual occurrence of the signal—the PCI-2511 driver automatically looks back to the location... -
Page 14: Counter Inputs
Counter inputs Four 32-bit counters are built into the PCI-2511. Each counter accepts frequency inputs up to 20 MHz. The counter channels can be configured as standard counters or as multi-axis quadrature encoders. The counters can concurrently monitor time periods, frequencies, pulses, and other event driven incremental occurrences directly from pulse-generators, limit switches, proximity switches, and magnetic pick-ups. -
Page 15: Debounce Modes
Sets the signal on the mapped counter input to latch the count. By default, the start of scan signal—a signal internal to the PCI-2511 pulses once every scan period to indicate the start of a scan group—latches the count, so the count is updated each time a scan is started. - Page 16 PCI-2511 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 17 PCI-2511 User's Guide Functional Details 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.
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Page 18: Encoder Mode
The encoder mode allows the PCI-2511 to use data from optical incremental quadrature encoders. In encoder mode, the PCI-2511 accepts single-ended inputs. When reading phase A, phase B, and index Z signals, the PCI- 2511 provides positioning, direction, and velocity data. - Page 19 These different modes are known as X1, X2, and X4. Connecting the PCI-2511 to an encoder You can use up to two encoders with each PCI-2511 in your acquisition system. Each A and B signal can be made as a single-ended connection with respect to common ground.
- Page 20 1 are always zero. The values returned during scan period 2 reflect what happened during scan period 1. The scan period defines the timing resolution for the PCI-2511. If you need a higher timing resolution, shorten the scan period.
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Page 21: Timer Outputs
Timer outputs Two 16-bit timer outputs are built into the PCI-2511. Each timer is capable of generating a different square wave with a programmable frequency in the range of 16 Hz to 1 MHz. Figure 16. Typical PCI-2511 timer channel Example: Timer outputs Timer outputs are programmable square waves. -
Page 22: Using Detection Setpoints For Output Control
Using detection setpoints for output control What are detection setpoints? With the PCI-2511's setpoint configuration feature, you can configure up to 16 detection setpoints associated with channels in a scan group. Each setpoint can update the following, allowing for real-time control based on... - Page 23 Detection setpoints act on 16-bit data only. Since the PCI-2511 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.
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Page 24: Setpoint Configuration
There are several possible conditions (criteria) and effectively three update modes, as explained in the following configuration summary. Set high limit You can set the 16-bit high limit (limit A) when configuring the PCI-2511 through software. Set low limit You can set the 16-bit low limit (limit B) when configuring the PCI-2511 through software. -
Page 25: Examples Of Control Outputs
PCI-2511 User's Guide Functional Details In the following example, the criteria for setpoints 0, 1, and 4 is satisfied (True), but the criteria for the other 13 setpoints has not been met. Setpoint # True ( False ( <<< Most significant bit Least significant bit >>>... - Page 26 PCI-2511 User's Guide Functional Details Detection on an analog input, timer output updates Update Mode: Update on True and False Criteria Used: Inside window The figure below shows how a setpoint can be used to update a timer output. Channel 3 is an analog input channel.
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Page 27: Detection Setpoint Details
PCI-2511 User's Guide Functional Details 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 28 PCI-2511 User's Guide Functional Details Figure 22. Example of FIRSTPORTC latency By applying a setpoint on analog input channel 2, that setpoint gets evaluated every 10 µs with respect to the sampled data for channel 2. Due to the pipelined architecture of the analog-to-digital converter system, the setpoint cannot be evaluated until 2 µs after the ADC conversion.
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Page 29: Calibrating The Pci-2511
Chapter 4 Calibrating the PCI-2511 Board ranges are calibrated at the factory using a digital NIST traceable calibration method in which a correction factor for each range is stored on the unit at the time of calibration. Two calibration tables are stored on the board in EPROM — one table contains the factory calibration, and the other is available for field calibration. -
Page 30: 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 Parameter Specification A/D converter type Successive approximation Resolution 16 bits Number of channels... -
Page 31: Digital Input / Output
PCI-2511 User's Guide Specifications Digital input / output Table 3. Digital input/output specifications Parameter Specification Number of I/O Ports Three banks of eight. Each port is programmable as input or output Input scanning mode Asynchronous, under program control at any time relative to input scanning Configuration 10 kΩ... -
Page 32: Input Sequencer
PCI-2511 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 Parameter Specification Input scan clock sources Internal: (Note 3) Analog channels from 1 µs to 1 sec in 20.83 nS steps... -
Page 33: Trigger Sources And Modes
PCI-2511 User's Guide Specifications Trigger sources and modes Table 7. Trigger sources and modes Parameter Specification Input scan trigger sources Single channel analog hardware trigger Single channel analog software trigger External-single channel digital trigger (TTL TRG input) ... -
Page 34: Environmental
PCI-2511 User's Guide Specifications Environmental Table 10. Environmental specifications Parameter Specification Operating temperature range 0 °C to +60 °C Storage temperature range –40 °C to +80 °C Relative humidity 0 to 95% non-condensing Mechanical Table 11. Mechanical specifications Parameter Specification... - Page 35 PCI-2511 User's Guide Specifications Table 13. 16-channel single-ended pinout Function Function ACH0 ACH8 AGND ACH1 ACH9 AGND ACH2 ACH10 AGND ACH3 ACH11 AGND SGND (low level sense – not for general use) ACH4 ACH12 AGND ACH5 ACH13 AGND ACH6 ACH14...
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Page 36: Declaration Of Conformity
Suite 1008 Norton, MA 02766 Category: Information technology equipment. Measurement Computing Corporation declares under sole responsibility that the product PCI-2511 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 EN 55022 (1990)/CISPR 22: Radiated and Conducted emissions. - Page 37 Measurement Computing Corporation NI Hungary Kft 10 Commerce Way H-4031 Debrecen, Hátar út 1/A, Hungary Norton, Massachusetts 02766 Phone: +36 (52) 515400 (508) 946-5100 Fax: +36 (52) 515414 Fax: (508) 946-9500 http://hungary.ni.com/debrecen E-mail: info@mccdaq.com www.mccdaq.com...
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