Measurement Computing PCI-DAS6030 User manual

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PCI-DAS6030 and PCI-DAS6032
Analog and Digital I/O
User's Guide
Document Revision 8A
December 2012
© Copyright 2012
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HM PCI-DAS6030_32.docx
Trademark and Copyright Information
Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement Computing logo are
either trademarks or registered trademarks of MeasurementComputing Corporation. Refer to the Copyrights &
Trademarks section on mccdaq.com/legal for more information about Measurement Computing trademarks.
Other product and company namesmentioned herein are trademarks or trade names of their respective
companies.
©2012 MeasurementComputingCorporation. All rights reserved. No part of this publicationmay 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.
Notice
Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for
use in life support systems and/or devices without prior written consent from Measurement Computing
Corporation. Life support devices/systems are devices or systems that, a) are intended for surgical implantation
into the body, or b) support or sustain life and whose failure to perform can be reasonably expected to result in
injury. Measurement Computing Corporation products are not designed with the components required, and are
not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of
people.
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3
Table of Contents
Preface
About this User's Guide .......................................................................................................................5
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-DAS6030 and PCI-DAS6032...............................................................................6
Overview: PCI-DAS6030 and PCI-DAS6032 features......................................................................................6
Chapter 2
Installing the PCI-DAS6030 and PCI-DAS6032...................................................................................7
What comes with your PCI-DAS6030 and PCI-DAS6032 shipment?...............................................................7
Hardware .......................................................................................................................................................................... 7
Documentation.................................................................................................................................................................. 7
Optional components........................................................................................................................................................ 7
Unpacking the hardware.....................................................................................................................................8
Installing the software ........................................................................................................................................8
Installing the hardware .......................................................................................................................................8
Configuring the hardware...................................................................................................................................8
Differential input mode..................................................................................................................................................... 9
Single-ended input mode .................................................................................................................................................. 9
Non-referenced single-ended input mode ......................................................................................................................... 9
DAQ-Sync configuration.................................................................................................................................................. 9
Signal connections............................................................................................................................................10
SCSI connector................................................................................................................................................................10
DAQ-Sync connector.......................................................................................................................................................14
Field wiring, signal termination and conditioning ...........................................................................................................14
Chapter 3
Functional Details ...............................................................................................................................15
Basic architecture .............................................................................................................................................15
Auxiliary input & output interface...................................................................................................................................15
DAQ-Sync signals ...........................................................................................................................................................16
DAQ signal timing............................................................................................................................................18
SCANCLK signal ............................................................................................................................................................18
A/D START TRIGGER signal ........................................................................................................................................18
A/D STOP TRIGGER signal ...........................................................................................................................................19
STARTSCAN signal........................................................................................................................................................20
SSH signal .......................................................................................................................................................................20
A/D CONVERT signal ....................................................................................................................................................21
A/D PACER GATE signal...............................................................................................................................................21
A/D EXTERNAL TIME BASE signal ............................................................................................................................21
A/D STOP signal.............................................................................................................................................................22
ATRIG signal...................................................................................................................................................................22
Waveform generation timing signals................................................................................................................27
D/A START TRIGGER signal ........................................................................................................................................27
D/A CONVERT signal ....................................................................................................................................................28
D/A EXTERNAL TIME BASE signal ............................................................................................................................28
General-purpose counter signal timing.............................................................................................................29
CTR1 CLK signal............................................................................................................................................................29
CTR1 GATE signal .........................................................................................................................................................29
CTR1 OUT signal............................................................................................................................................................30
CTR2 CLK signal............................................................................................................................................................30
CTR2 GATE signal .........................................................................................................................................................30
CTR2 OUT signal............................................................................................................................................................31
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PCI-DAS6030 & PCI-DAS6032 User's Guide
4
Chapter 4
Calibrating the Board..........................................................................................................................32
Introduction ......................................................................................................................................................32
Calibration theory.............................................................................................................................................32
Chapter 5
Specifications......................................................................................................................................34
Analog Input.....................................................................................................................................................34
Accuracy..........................................................................................................................................................................35
Settling time.....................................................................................................................................................................36
Parametrics ......................................................................................................................................................................37
Noise performance...........................................................................................................................................................37
Analog output (PCI-DAS6030 only)................................................................................................................38
Analog output pacing and triggering................................................................................................................................39
Analog trigger...................................................................................................................................................39
Analog I/O calibration......................................................................................................................................40
Digital I/O.........................................................................................................................................................40
Interrupt Section ...............................................................................................................................................41
Counters............................................................................................................................................................41
Configurable AUXIN<5:0>, AUXOUT<2:0> external trigger/clocks.............................................................42
DAQ-Sync inter-board triggers/clocks.............................................................................................................42
Power Consumption .........................................................................................................................................43
Environmental ..................................................................................................................................................43
Mechanical .......................................................................................................................................................43
DAQ-Sync connector .......................................................................................................................................43
SCSI connector.................................................................................................................................................44
Declaration of Conformity..................................................................................................................47
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5
Preface
About this User's Guide
What you will learn from this user's guide
This user's guide describes the Measurement Computing PCI-DAS6030 and PCI-DAS6032 data acquisition
devices and lists device specifications.
Conventions in this user's guide
For more information
Text presented in a box signifies additional information related to the subject matter.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
bold text Bold text is used for the names of objects on a screen, such as buttons, text boxes, and check boxes.
italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase.
Where to find more information
Additional information about PCI-DAS6030 and PCI-DAS6032 hardware is available on our website at
www.mccdaq.com. You can also contact Measurement Computing Corporation by phone, fax, or email with
specific questions.
Phone: [phone] and follow the instructions for reaching Tech Support
Fax: [phone] to the attention of Tech Support
Email: [e-mail]
Knowledgebase: kb.mccdaq.com
If you need to program at the register level in your application, refer to the STC Register Map for the PCI-
DAS6000 Series. This document is available at www.mccdaq.com/registermaps/RegMapSTC6000.pdf.
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6
Chapter 1
Introducing the PCI-DAS6030 and PCI-DAS6032
Overview: PCI-DAS6030 and PCI-DAS6032 features
This manual explains how to install and use the PCI-DAS6030 and PCI-DAS6032 boards.
The PCI-DAS6030 and PCI-DAS6032 boards provide either eight differential or 16 single-ended analog inputs
with 16 bit resolution. Input ranges are either Bipolar or Unipolar. Bipolar input ranges are ±10V, ±5V, ±2.0V,
±1V, ±0.5V, ±0.2V, and ±0.1V. Unipolar input ranges are 0 to 10V, 0 to 5V, 0 to 2V, 0 to 1V, 0 to 0.5V, 0 to
0.2V and 0 to 0.1V. The input ranges are software-selectable.
The PCI-DAS6030 and PCI-DAS6032 have eight lines of digital I/O. The PCI-DAS6030 also provides two
digital-to-analog outputs.
Each board has nine user-configurable trigger/clock/gate pins that are available at a 100-pin I/O connector. Six
pins are configurable as inputs and three are configurable as outputs. Refer to Chapter 3 ("Functional Details")
and Chapter 5 ("Specifications") for more information.
The PCI-DAS6030 and PCI-DAS6032 provide triggering and synchronization capability. There are five
trigger/strobes and a synchronizing clock provided on a 14-pin header. The DAQ-Sync signals use dedicated
pins. Only the direction can be set. Refer to Chapter 2 ("Installing the Board") and Chapter 5 ("Specifications")
for more information on these signals.
Interrupts can be generated by up to seven ADC sources and four DAC sources. Interrupt sources are listed in
Chapter 5 ("Specifications").
The PCI-DAS6030 and PCI-DAS6032 boards contain an 82C54 counter chip, which consists of three 16-bit
counters. Clock, gate, and output signals from two of the three counters are available on the 100-pin I/O
connector. The third counter is used internally.
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7
Chapter 2
Installing the PCI-DAS6030 and PCI-DAS6032
What comes with your PCI-DAS6030 and PCI-DAS6032 shipment?
The following items are shipped with the PCI-DAS6030 and PCI-DAS6032.
Hardware
The following items should be included with your shipment.
PCI-DAS6030 board or PCI-DAS6032 board
PCI-DAS6030
PCI-DAS6032
Documentation
In addition to this hardware user's guide, you should also receive the Quick Start Guide. This booklet provides
an overview of the MCC DAQ software you received with the device, and includes information about installing
the software. Please read this booklet completely before installing any software or hardware.
Optional components
If you ordered any of the following products with your board, they should be included with your shipment.
Cables
C100HD50-x
C100MMS-x
CDS-14-x
Signal termination and conditioning accessories
MCC provides signal termination products for use with the PCI-DAS6030 and PCI-DAS6032. Refer to the
"Field wiring, signal termination and conditioning" section on page 14 for a complete list of compatible
accessory products.
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PCI-DAS6030 & PCI-DAS6032 User's Guide Installing the PCI-DAS6030 and PCI-DAS6032
8
Unpacking the hardware
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the PCI-DAS6030 and PCI-DAS6032 from its packaging, ground yourself using a
wrist strap or by simply touching the computer chassis or other grounded object to eliminate any stored static
charge.
If any components are missing or damaged, notify Measurement Computing Corporation immediately by
phone, fax, or e-mail:
Phone: [phone] and follow the instructions for reaching Tech Support.
Fax: [phone] to the attention of Tech Support
Email: [e-mail]
For international customers, contact your local distributor. Refer to the International Distributors section on our
web site at www.mccdaq.com/International.
Installing the software
Refer to the Quick Start Guide for instructions on installing the software on the MCC DAQ CD. This booklet is
available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf..
Installing the hardware
The PCI-DAS6030 and PCI-DAS6032 boards are completely plug-and-play. There are no switches or jumpers
to set. Configuration is controlled by your system's BIOS. To install your board, follow the steps below.
Install the MCC DAQ software before you install your board
The driver needed to run your board is installed with the MCC DAQ software. Therefore, you need to install the
MCC DAQ software before you install your board. Refer to the Quick Start Guide for instructions on installing
the software.
1. Turn your computer off, open it up, and insert your board into any available PCI slot.
2. Close your computer and turn it on.
If you are using an operating system with support for plug-and-play, a dialog box notifies you that new
hardware has been detected. If the information file for this board is not already loaded onto your PC, you
will be prompted for the disk containing this file. The MCC DAQ software contains this file. If required,
insert the MCC DAQ CD and click OK.
3. To test your installation and configure your board, run the InstaCal utility installed in the previous section.
Refer to the Quick Start Guide that came with your board for information on how to initially set up and
load InstaCal.
Allow your computer to warm up for at least 15 minutes before acquiring data with these boards board. The
high speed components used on these boards generate heat, and it takes this amount of time for a board to reach
steady state if it has been powered off for a significant amount of time.
Configuring the hardware
All hardware configuration options on the PCI-DAS6030 and PCI-DAS6032 are software controlled. You can
select some of the configuration options using InstaCal, such as the analog input configuration (16 single-ended
or eight differential channels), the edge used for triggering when using an external pacer, and the source for the
two independent counters. Once selected, any program that uses the Universal Library will initialize the
hardware according to these selections.
Following is an overview of the available hardware configuration options for these boards. There is additional
general information regarding analog signal connection and configuration in the Guide to Signal Connections
(available on our web site at http://www.measurementcomputing.com/signals/signals.pdf).
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PCI-DAS6030 & PCI-DAS6032 User's Guide Installing the PCI-DAS6030 and PCI-DAS6032
9
Differential input mode
Eight analog input channels are available in differential input mode. The input signal is measured with respect
to the low input, and is delivered through three wires:
The wire carrying the signal to be measured connects to CH# IN HI.
The wire carrying the reference signal connects to CH# IN LO.
The third wire is connected to LLGND.
Differential input mode is the preferred configuration for applications in noisy environments, or when the signal
source is referenced to a potential other than PC ground.
Single-ended input mode
16 analog input channels are available single-ended input mode. The input signal is referenced to signal ground
(LLGND), and is delivered through two wires:
The wire carrying the signal to be measured connects to CH# IN HI.
The other wire is connected to LLGND.
Non-referenced single-ended input mode
This mode is a compromise between differential and single-ended modes. It offers some of the advantages of
each mode. With this mode you can still get noise rejection, but not the limitation in the number of channels
resulting from a fully differential configuration. The external reference input must be the same for every
channel. It is equivalent to configuring the inputs for differential mode and then tying all of the low inputs
together and using that node as the reference input.
When configured for non-referenced single-ended input mode, 16 analog input channels are available. In this
mode, each input signal is not referenced to the board’s ground, but to a common reference signal (AISENSE).
The input signal is delivered through three wires:
The wire carrying the signal to measure connects to CH# IN HI.
The wire carrying the reference signal connects to AISENSE.
The third wire is connected to LLGND.
This mode is useful when the application calls for differential input mode but the limitation on channel count
prevents it.
DAQ-Sync configuration
You can interconnect multiple boards in the PCI-DAS6000 series to synchronize data acquisition or data output.
To do this, order and install a CDS-14-x cable at the DAQ-Sync connectors (P2) between the boards to be
synchronized.
The "x" in the CDS-14-x part number specifies the number of connectors available on the cable, and therefore,
the number of boards you can interconnect. Using a CDS-14-2, you can connect two PCI-DAS6000 series
boards together for I/O synchronization. Using a CDS-14-3, you can synchronize three boards, and so on. You
can connect up to five PCI-DAS6000 series boards. A CDS-14-3 cable is shown in Figure 3 on page 14. By
default, all DAQ-Sync connectors are configured as inputs (slave mode). In order to be useful, one board must
be set through software to serve as the master, and the signal sources of the slave boards must be defined.
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PCI-DAS6030 & PCI-DAS6032 User's Guide Installing the PCI-DAS6030 and PCI-DAS6032
10
Signal connections
SCSI connector
Board connectors, cables, accessory equipment
Connector type
Shielded SCSI 100 D-type
Compatible cables
C100HD50-x, unshielded ribbon cable. x = 3 or 6 feet (Figure 1)
C100MMS-x, shielded round cable. x = 1, 2, or 3 meters (Figure 2)
Compatible accessory products
(with the C100HD50-x cable)
ISO-RACK16/P
ISO-DA02/P
BNC-16SE
BNC-16DI
CIO-MINI50
CIO-TERM100
SCB-50
Compatible accessory products
(with the C100MMS-x cable)
SCB-100
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PCI-DAS6030 & PCI-DAS6032 User's Guide Installing the PCI-DAS6030 and PCI-DAS6032
11
8-channel differential mode pinout
Signal Name
Pin
Pin
Signal Name
GND
100
50
GND
CTR2 OUT
99
49
AUXIN5 / A/D PACER GATE
CTR2 GATE
98
48
AUXIN4 / D/A START TRIGGER
CTR2 CLK
97
47
AUXIN3 / D/A UPDATE
GND
96
46
AUXIN2 / A/D STOP TRIGGER
CTR1 OUT
95
45
AUXIN1 / A/D START TRIGGER
CTR1 GATE
94
44
n/c
CTR1 CLK
93
43
AUXIN0 / A/D CONVERT / ATRIG
DIO7
92
42
AUXOUT2 / SCANCLK
DIO6
91
41
AUXOUT1 / A/D PACER OUT
DIO5
90
40
AUXOUT0 / D/A PACER OUT
DIO4
89
39
PC +5 V
DIO3
88
38
D/A OUT1 *
DIO2
87
37
D/A GND
DIO1
86
36
D/A OUT 0 *
DIO0
85
35
AISENSE
n/c
84
34
n/c
n/c
83
33
n/c
n/c
82
32
n/c
n/c
81
31
n/c
n/c
80
30
n/c
n/c
79
29
n/c
n/c
78
28
n/c
n/c
77
27
n/c
n/c
76
26
n/c
n/c
75
25
n/c
n/c
74
24
n/c
n/c
73
23
n/c
n/c
72
22
n/c
n/c
71
21
n/c
n/c
70
20
n/c
n/c
69
19
n/c
n/c
68
18
LLGND
n/c
67
17
CH7 IN LO
n/c
66
16
CH7 IN HI
n/c
65
15
CH6 IN LO
n/c
64
14
CH6 IN HI
n/c
63
13
CH5 IN LO
n/c
62
12
CH5 IN HI
n/c
61
11
CH4 IN LO
n/c
60
10
CH4 IN HI
n/c
59
9
CH3 IN LO
n/c
58
8
CH3 IN HI
n/c
57
7
CH2 IN LO
n/c
56
6
CH2 IN HI
n/c
55
5
CH1 IN LO
n/c
54
4
CH1 IN HI
n/c
53
3
CH0 IN LO
n/c
52
2
CH0 IN HI
n/c
51
1
LLGND
PCI slot ↓
* = N/C on the PCI-DAS6032
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PCI-DAS6030 & PCI-DAS6032 User's Guide Installing the PCI-DAS6030 and PCI-DAS6032
12
16-channel single-ended mode pinout
Signal Name
Pin
Pin
Signal Name
GND
100
50
GND
CTR2 OUT
99
49
AUXIN5 / A/D PACER GATE
CTR2 GATE
98
48
AUXIN4 / D/A START TRIGGER
CTR2 CLK
97
47
AUXIN3 / D/A UPDATE
GND
96
46
AUXIN2 / A/D STOP TRIGGER
CTR1 OUT
95
45
AUXIN1 / A/D START TRIGGER
CTR1 GATE
94
44
n/c
CTR1 CLK
93
43
AUXIN0 / A/D CONVERT / ATRIG
DIO7
92
42
AUXOUT2 / SCANCLK
DIO6
91
41
AUXOUT1 / A/D PACER OUT
DIO5
90
40
AUXOUT0 / D/A PACER OUT
DIO4
89
39
PC +5 V
DIO3
88
38
D/A OUT1 *
DIO2
87
37
D/A GND
DIO1
86
36
D/A OUT 0 *
DIO0
85
35
AISENSE
n/c
84
34
n/c
n/c
83
33
n/c
n/c
82
32
n/c
n/c
81
31
n/c
n/c
80
30
n/c
n/c
79
29
n/c
n/c
78
28
n/c
n/c
77
27
n/c
n/c
76
26
n/c
n/c
75
25
n/c
n/c
74
24
n/c
n/c
73
23
n/c
n/c
72
22
n/c
n/c
71
21
n/c
n/c
70
20
n/c
n/c
69
19
n/c
n/c
68
18
LLGND
n/c
67
17
CH15 IN
n/c
66
16
CH7 IN
n/c
65
15
CH14 IN
n/c
64
14
CH6 IN
n/c
63
13
CH13 IN
n/c
62
12
CH5 IN
n/c
61
11
CH12 IN
n/c
60
10
CH4 IN
n/c
59
9
CH11 IN
n/c
58
8
CH3 IN
n/c
57
7
CH10 IN
n/c
56
6
CH2 IN
n/c
55
5
CH9 IN
n/c
54
4
CH1 IN
n/c
53
3
CH8 IN
n/c
52
2
CH0 IN
n/c
51
1
LLGND
PCI slot ↓
* = N/C on the PCI-DAS6032
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PCI-DAS6030 & PCI-DAS6032 User's Guide Installing the PCI-DAS6030 and PCI-DAS6032
13
Figure 1. C100HD50-x cable
Figure 2. C100MMS-x cable
Details on these cables are available on our web site at www.mccdaq.com/products/accessories.aspx.
1
50
2
49
51
100
52
99
10050
511
Strain relief is
stamped “Pins 1-50”.
Pins 1-50 are on the long side
of the “D” connector.
Pins 51-100 are on
the short side of
the “D” connector.
Key
Key
The red stripe
identifies pin # 1
The red stripe
identifies pin # 51
Strain relief is
Stamped “Pins 51-100”.
10050
511
10050
511
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PCI-DAS6030 & PCI-DAS6032 User's Guide Installing the PCI-DAS6030 and PCI-DAS6032
14
DAQ-Sync connector
DAQ-Sync connector and compatible cables
Connector type
14-pin right-angle 100 mil box header
Compatible cables
MCC p/n CDS-14-x, 14 pin ribbon cable for board-to board DAQ-Sync connection;
x = number of boards (Figure 3)
DAQ-Sync connector pin out (view from top)
Signal Name
Pin
Pin
Signal Name
DS A/D START TRIGGER
1
■
■
2
GND
DS A/D STOP TRIGGER
3
■
■
4
GND
DS A/D CONVERT
5
■
■
6
GND
DS D/A UPDATE
7
■
■
8
GND
DS D/A START TRIGGER
9
■
■
10
GND
RESERVED
11
■
■
12
GND
SYNC CLK
13
■
■
14
GND
Figure 3. CDS-14-3 cable
Details on the this cable are available on our web site at www.mccdaq.com/products/accessories.aspx.
Field wiring, signal termination and conditioning
Screw terminal boards and BNC adapters
Use with the C100HD50-x cable:
CIO-MINI50: 50-pin universal screw terminal accessory.
CIO-TERM100: 16x4 screw terminal.
SCB-50: 50 conductor, shielded signal connection/screw terminal box provides two independent 50-pin
connections.
Use with the C100MMS-x cable:
SCB-100: 100 conductor, shielded signal connection/screw terminal box provides two independent 50-pin
connections.
BNC connector boxes:
BNC-16SE: 16-channel single-ended BNC connector box.
BNC-16DI: Eight-channel differential BNC connector box.
Details on these products are available on our web site at www.mccdaq.com/products/screw_terminal_bnc.aspx.
ISO-5B module racks
Use with the C100HD50-x cable:
ISO-RACK16/P: 16-channel isolation module mounting rack.
ISO-DA02/P: Two-channel, 5B module rack.
Details on these products are available on our web site at www.mccdaq.com/products/signal_conditioning.aspx.
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15
Chapter 3
Functional Details
Basic architecture
Figure shows a simplified block diagram of the PCI-DAS6030 and PCI-DAS6032. This board provides all of
the functional elements shown in the figure.
The System Timing and Control (STC) is the logical center for all DAQ, DIO, and DAC (if applicable)
operations. It communicates over two major busses: a local bus and a memory bus.
The local bus carries digital I/O data and software commands from the PCI Bus Master. There are two Direct
Memory Access (DMA) channels provided for data transfers to the PC.
Primarily, the memory bus carries A/D and D/A related data and commands. There are three buffer memories
provided on the memory bus:
The queue buffer (8K configuration memory) stores programmed channel numbers, gains, and offsets.
The ADC buffer (8K FIFO [First In, First Out]) temporarily stores scanned and converted analog inputs.
The DAC 16K buffer stores data to be output as analog waveforms.
Auxiliary input & output interface
The board's 100-pin I/O connector provides six software-selectable inputs, and three software-selectable
outputs. The signals are user-configurable clocks, triggers and gates.
Refer to "DAQ signal timing" on page 18 for information about these signals and their timing requirements.
The following table lists all of the possible signals and the default signals you use on the nine pins.
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PCI-DAS6030 & PCI-DAS6032 User's Guide Functional Details
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Auxiliary I/O Signals
I/O Type
Signal Name
Function
AUXIN<5:0> sources
(software selectable)
A/D CONVERT
External ADC Convert Strobe (default)
A/D TIMEBASE IN
External ADC Pacer Time Base
A/D START TRIGGER
ADC Start Trigger (default)
A/D STOP TRIGGER
ADC Stop Trigger (default)
A/D PACER GATE
External ADC Gate (default)
D/A START TRIGGER
DAC Trigger/Gate (default)
D/A UPDATE
DAC Update Strobe (default)
D/A TIMEBASE IN
External DAC Pacer Time Base
AUXOUT<2:0> sources
(software selectable)
STARTSCAN
A pulse indicating the start of conversion.
SSH
An active signal that terminates at the start of the last
conversion in a scan.
A/D STOP
Indicates the end of a scan
A/D CONVERT
ADC convert pulse (default)
SCANCLK
Delayed version of ADC convert (default)
CTR1 CLK
CTR1 clock source
D/A UPDATE
D/A update pulse (default)
CTR2 CLK
CTR2 clock source
A/D START TRIGGER
ADC Start Trigger Out
A/D STOP TRIGGER
ADC Stop Trigger Out
A/D PACER GATE
External ADC gate
D/A START TRIGGER
DAC Start Trigger Out
Default selections
summary
AUXIN0
A/D CONVERT
AUXIN1
A/D START TRIGGER
AUXIN2
A/D STOP TRIGGER
AUXIN3
D/A UPDATE
AUXIN4
D/A START TRIGGER
AUXIN5
A/D PACER GATE
AUXOUT0
D/A UPDATE
AUXOUT1
A/D CONVERT
AUXOUT2
SCANCLK
DAQ-Sync signals
The DAQ-Sync hardware provides the capability of triggering or clocking up to four slave boards from a master
board to synchronize data input and/or output.
The PCI-DAS6030 and PCI-DAS6032 boards provide the capability of inter-board synchronization between
boards in the PCI-DAS6000 family. There are five trigger/strobes and a synchronizing clock provided on a
14-pin header. The following signals are available:
DS A/D START TRIGGER
DS A/D STOP TRIGGER
DS A/D CONVERT
DS D/A UPDATE
DS D/A START TRIGGER
SYNC CLK
Except for the SYNC CLK signal, the DAQ-Sync timing and control signals are a subset of the AUXIO signals
available at the 100-pin I/O connector. These versions of the signals are used for board-to-board
synchronization and have the same timing specifications as their I/O connector counterparts. Refer to "DAQ
signal timing" on page 18 for explanations of signals and timing.
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PCI-DAS6030 & PCI-DAS6032 User's Guide Functional Details
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Use the SYNC CLCK signal to determine the master/slave configuration of a DAQ-Sync-enabled system. Each
system can have one master and up to three slaves. SYNC CLK is the 40 MHz time-base used to derive all
board timing and control. The master provides this clock to the slave boards so that all boards in the DAQ-sync-
enabled system are timed from the same clock.
Figure 4. Block diagram –PCI-DAS6030/32
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PCI-DAS6030 & PCI-DAS6032 User's Guide Functional Details
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DAQ signal timing
The DAQ timing signals are:
SCANCLK
A/D START TRIGGER
A/D STOP TRIGGER
STARTSCAN
SSH
A/D CONVERT
A/D PACER GATE
A/D EXTERNAL TIME BASE
A/D STOP
ATRIG
SCANCLK signal
SCANCLK is an output signal that may be used for switching external multiplexers. It is a 400 ns wide pulse
that follows the CONVERT signal after a 50 ns delay. This is adequate time for the analog input signal to be
acquired so that the next signal may be switched in. The polarity of the SCANCLK signal is programmable. The
default output pin for the SCANCLK signal is AUXOUT2, but any of the AUXOUT pins may be programmed
as a SCANCLK output.
Figure 5. SCANCLK signal timing
A/D START TRIGGER signal
Use the A/D START TRIGGER signal for conventional triggering (when you only need to acquire data after a
trigger event). Figure 6 shows the A/D START TRIGGER signal timing for a conventionally triggered
acquisition.
Figure 6. Data acquisition example for conventional triggering
The A/D START TRIGGER source is programmable and may be set to any of the AUXIN inputs or to the
DAQ-Sync DS A/D START TRIGGER input. The polarity of this signal is also programmable to trigger
acquisitions on either the positive or negative edge.
The A/D START TRIGGER signal is also available as an output and can be programmed to appear at any of the
AUXOUT outputs. Refer to Figure 7 and Figure 8 for A/D START TRIGGER input and output timing
requirements.
CONVERT
SCANCLK
td td
tw
td = 50 ns
tw = 400 ns
A/D Start Trigger
Start Scan
Convert
1
2
3
4
0
Scan Counter
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PCI-DAS6030 & PCI-DAS6032 User's Guide Functional Details
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Figure 7. A/D START TRIGGER input signal timing
Figure 8. A/D START TRIGGER output signal timing
The A/D START TRIGGER signal is also used to initiate pre-triggered DAQ operations (when you need to
acquire data just before a trigger event). In most pre-triggered applications, the A/D START TRIGGER signal
is generated by a software trigger. The use of A/D START TRIGGER and A/D STOP TRIGGER in pre-
triggered DAQ applications is explained next.
A/D STOP TRIGGER signal
Pre-triggered data acquisition continually acquires data into a circular buffer until a specified number of
samples have been collected after the trigger event. Figure 9 illustrates a typical pre-triggered DAQ sequence.
Figure 9. Pre-triggered data acquisition example
The A/D STOP TRIGGER signal signifies when the circular buffer should stop and when the specified number
of post trigger samples should be acquired. It is available as an output and an input. By default, it is available at
AUXIN2 as an input but may be programmed for access at any of the AUXIN pins or the DAQ-Sync "DS A/D
STOP TRIGGER" input. It may be programmed for access at any of the AUXOUT pins as an output.
When using the A/D STOP TRIGGER signal as an input, the polarity may be configured for either rising or
falling edge. The selected edge of the A/D STOP TRIGGER signal initiates the post-triggered phase of a pre-
triggered acquisition sequence.
As an output, the A/D STOP TRIGGER signal indicates the event separating the pre-trigger data from the post-
trigger data. The output is an active high pulse with a pulse width of 50 ns. Figure 10 and Figure 11 show the
input and output timing requirements for the A/D STOP TRIGGER signal.
Rising Edge Polarity
tw
tw = 37.5 ns minimum
Falling Edge Polarity
tw
tw = 50 ns
A/D Start Trigger
Start Scan
Convert
3 2 1 0 3 2 1 0 3 2 1
A/D Stop Trigger
Scan Counter
Don't care
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