Measurement Computing PCI-DAS6034 User manual

PCI-DAS6034, PCI-DAS6035,
and PCI-DAS6036
Analog and Digital I/O
User's Guide
Document Revision 4, May, 2009
© Copyright 2009, Measurement Computing Corporation

3
HM PCI-DAS6034_35_36.doc
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4
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5
Table of Contents
Preface
About this User's Guide ....................................................................................................................... 7
What you will learn from this user's guide ......................................................................................................... 7
Conventions in this user's guide ......................................................................................................................... 7
Where to find more information ......................................................................................................................... 7
Chapter 1
Introducing the PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 ..................................................... 8
Overview: PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 features ............................................................ 8
Software features ................................................................................................................................................ 8
Chapter 2
Installing the Board ............................................................................................................................... 9
What comes with your PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 shipment? ..................................... 9
Hardware .......................................................................................................................................................................... 9
Additional documentation ................................................................................................................................................. 9
Optional components .......................................................................................................................................................10
Unpacking the PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 ................................................................. 10
Installing the software ...................................................................................................................................... 10
Installing the hardware ..................................................................................................................................... 10
Configuring the hardware ................................................................................................................................. 11
Differential input mode ....................................................................................................................................................11
Single-ended input mode .................................................................................................................................................11
Non-referenced single-ended input mode ........................................................................................................................11
DAQ-Sync configuration .................................................................................................................................................12
Connecting the board for I/O operations .......................................................................................................... 12
Connectors, cables – main I/O connector .........................................................................................................................12
Pin out – main I/O connector ...........................................................................................................................................13
DAQ-Sync connector and pin out ....................................................................................................................................15
Field wiring and signal termination .................................................................................................................................16
Chapter 3
Functional Details ............................................................................................................................... 17
Basic architecture ............................................................................................................................................. 17
Auxiliary input & output interface ...................................................................................................................................17
DAQ-Sync signals ...........................................................................................................................................................18
DAQ signal timing............................................................................................................................................ 20
SCANCLK signal ............................................................................................................................................................20
STARTSCAN signal ........................................................................................................................................................20
A/D START TRIGGER signal ........................................................................................................................................21
A/D STOP TRIGGER signal ...........................................................................................................................................22
SSH signal .......................................................................................................................................................................23
A/D CONVERT signal ....................................................................................................................................................23
A/D PACER GATE signal ...............................................................................................................................................23
A/D EXTERNAL TIME BASE signal ............................................................................................................................24
A/D STOP signal .............................................................................................................................................................24
Waveform generation timing signals (PCI-DAS6035 and PCI-DAS6036 only) .............................................. 24
D/A START TRIGGER signal ........................................................................................................................................24
D/A CONVERT signal ....................................................................................................................................................25
D/A EXTERNAL TIME BASE signal ............................................................................................................................26
General-purpose counter signal timing ............................................................................................................. 26
CTR1 CLK signal ............................................................................................................................................................26
CTR1 GATE signal .........................................................................................................................................................27
CTR1 OUT signal ............................................................................................................................................................27
CTR2 CLK signal ............................................................................................................................................................27
CTR2 GATE signal .........................................................................................................................................................28

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide
6
CTR2 OUT signal ............................................................................................................................................................28
Chapter 4
Calibrating the Board .......................................................................................................................... 29
Introduction ...................................................................................................................................................... 29
Calibration theory ............................................................................................................................................. 29
Chapter 5
Specifications ...................................................................................................................................... 30
Analog inputs .................................................................................................................................................... 30
Accuracy ..........................................................................................................................................................................30
System throughput ...........................................................................................................................................................31
Settling time .....................................................................................................................................................................31
Parametrics ......................................................................................................................................................................31
Noise performance ...........................................................................................................................................................32
Analog outputs (PCI-DAS6036 & PCI-DAS6035 only) .................................................................................. 32
Analog output pacing and triggering ................................................................................................................ 33
Analog input / output calibration ...................................................................................................................... 33
Digital input / output ......................................................................................................................................... 33
Interrupts........................................................................................................................................................... 34
Counters ............................................................................................................................................................ 34
Configurable AUXIN<5:0>, AUXOUT<2:0> external trigger/clocks ............................................................. 35
DAQ-Sync inter-board triggers/clocks ............................................................................................................. 35
Power consumption .......................................................................................................................................... 36
Environmental .................................................................................................................................................. 36
Mechanical ....................................................................................................................................................... 36
DAQ-Sync connector and pin out ..................................................................................................................... 36
Main connector and pin out .............................................................................................................................. 36
8-channel differential mode pin out .................................................................................................................................37
16-channel single-ended mode .........................................................................................................................................38
Declaration of Conformity .................................................................................................................. 39

7
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 a PCI-DAS6034, PCI-DAS6035, and PCI-
DAS6036 board so that you get the most out of the analog, digital, and timing I/O features.
This user's guide also refers you to related documents available on our web site, and to technical support
resources.
Conventions in this user's guide
For more information on …
Text presented in a box signifies additional information and helpful hints related to the subject matter you are
reading.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
< : > Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned
to registers, bit settings, etc.
bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For
example:
1. Insert the disk or CD and click the OK button.
italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For
example:
The InstaCal installation procedure is explained in the Quick Start Guide.
Never touch the exposed pins or circuit connections on the board.
Where to find more information
For additional information relevant to the operation of your hardware, refer to the Documents subdirectory
where you installed the MCC DAQ software (C:\Program Files\Measurement Computing\DAQ by default), or
search for your device on our website at www.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.

8
Chapter 1
Introducing the PCI-DAS6034, PCI-DAS6035, and
PCI-DAS6036
Overview: PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 features
This user's guide all of the information you need to install and use the PCI-DAS6034, PCI-DAS6035, and PCI-
DAS6036. The three versions differ in the following ways:
 The PCI-DAS6035 and PCI-DAS6036 have two digital-to-analog outputs, while the PCI-DAS6034 has no
digital-to-analog outputs.
 The PCI-DAS6036 provides 16-bit resolution on its analog outputs, while the PCI-DAS6035 provides
12-bit resolution on its analog outputs.
All three boards provide up to 16 analog inputs. Each input can be individually configured as single-ended or
differential. The analog inputs have 16-bit resolution.
The input ranges are bipolar-only. They have four ranges of ±10V, ±5V, ±500 mV, and ±50 mV. The ranges are
software-selectable.
The boards provide nine user-configurable trigger/clock/gate pins. They are available at a 100-pin I/O
connector. Six 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-DAS6034, PCI-DAS6035, and PCI-DAS6036 provide triggering and synchronization capability.
There are five trigger/strobes and a synchronizing clock provided on a 14-pin header. Refer to Chapter 2
("Installing your 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. These interrupt sources are
listed in Chapter 5 ("Specifications").
Each board contains 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.
Software features
For information on the features of InstaCal and the other software included with your PCI-DAS6034, PCI-
DAS6035, and PCI-DAS6036, refer to the Quick Start Guide that shipped with your device. The Quick Start
Guide is also available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.
Check www.mccdaq.com/download.htm for the latest software version.

9
Chapter 2
Installing the Board
What comes with your PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036
shipment?
The following items are shipped with the PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036.
Hardware
 PCI-DAS6034, PCI-DAS6035, or PCI-DAS6036 board
PCI-DAS6034
PCI-DAS6035
PCI-DAS6036
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-DAS6034, PCI-DAS6035, and PCI-DAS6036 and information
regarding installation of that software. Please read this booklet completely before installing any software or
hardware.

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Installing the Board
10
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
 Signal termination and conditioning accessories
MCC provides signal termination products for use with the PCI-DAS6034, PCI-DAS6035, and PCI-
DAS6036. Refer to the "Field wiring and signal termination" on page 16 for a complete list of compatible
accessory products.
Unpacking the PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 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]
Installing the software
Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data
Acquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-
Quick-Start.pdf.
Installing the hardware
The PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 boards are completely plug-and-play. There are no
switches or jumpers to set on the board. 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 an available PCI slot.
2. Close your computer and turn it on.
If you are using an operating system with support for plug-and-play (such as Windows 2000 or Windows
XP), a dialog box pops up as the system loads indicating 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 Measurement
Computing Data Acquisition Software CD and click OK.

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Installing the Board
11
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. 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-DAS6034, PCI-DAS6035, and PCI-DAS6036 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 www.mccdaq.com/signals/signals.pdf).
Differential input mode
When all channels are configured for differential input mode, eight analog input channels are available. In this
mode, the input signal is measured with respect to the low input. The input signal 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
When all channels are configured for single-ended input mode, 16 analog input channels are available. In this
mode, the input signal is referenced to the board’s signal ground (LLGND). The input signal 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. Using non-referenced single-ended mode, you can still get noise rejection but not the limitation in
the number of channels resulting from a fully differential configuration. The possible downside is that 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 mode 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.

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Installing the Board
12
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.
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.
A CDS-14-3 cable is shown in Figure 3 on page 16.
Connecting the board for I/O operations
Connectors, cables – main I/O connector
The table below lists the board connectors, applicable cables and compatible accessory boards.
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 (PCI-DAS6035 & PCI-DAS6036 only)
BNC-16SE
BNC-16DI
CIO-MINI50
CIO-TERM100
SCB-50
Compatible accessory products
(with the C100MMS-x cable)
SCB-100

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Installing the Board
13
Pin out – main
I/O connector
8-channel differential mode
* Not available on the PCI-
DAS6034
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
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 ↓

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Installing the Board
14
16-channel single-ended
mode
* Not available on the PCI-
DAS6034
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
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 ↓

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Installing the Board
15
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”.
Figure 1. C100HD50-x cable
10050
511
10050
511
Figure 2. C100MMS-x cable
Details on these cables are available on our web site at www.mccdaq.com/products/accessories.aspx.
DAQ-Sync connector and pin out
DAQ-Sync connector & cable types
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)

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Installing the Board
16
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
14-pin Ribbon Cable
The red stripe
identifies pin # 1
14
2
1
13
14
2
1
13
14
2
1
13
Figure 3. CDS-14-3 cable
Field wiring and signal termination
The following Measurement Computing accessory boards can be used with the PCI-DAS6034, PCI-DAS6035,
and PCI-DAS6036:
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:
 ISO-RACK16/P – 16-channel isolation module mounting rack.
 ISO-DA02/P (PCI-DA6035 and PCI-DAS6036 only) – Two-channel, 5B module rack.
Details on these products are available on our web site at www.mccdaq.com/products/signal_conditioning.aspx.

17
Chapter 3
Functional Details
Basic architecture
Figure 4 on page 19 is a simplified block diagram of the PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036.
These boards provide 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 (PCI-DAS6035 and PCI-DAS6036 only) 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 (this buffer function only applies to the
PCI-DAS6035 and PCI-DAS6036).
Auxiliary input & output interface
Each 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 the "DAQ signal timing" section on page 20 for more explanation of these signals and their timing
requirements.
The following table lists all of the possible and the default signals you use on the nine pins. D/A signals apply
only to the PCI-DAS6035 and PCI-DAS6036.

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Functional Details
18
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 EXT. 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)
(PCI-DAS6035 and PCI-DAS6036 only)
D/A UPDATE
DAC update strobe (default)
(PCI-DAS6035 and PCI-DAS6036 only)
D/A EXT. TIMEBASE IN
External DAC pacer time base
(PCI-DAS6035 and PCI-DAS6036 only)
AUXOUT<2:0> sources
(software selectable)
STARTSCAN
A pulse indicating the start of conversion.
SSH
An active signal that negates at the start of the last
conversion in a scan.
A/D STOP
Indicates end of an acquisition sequence
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) (PCI-DAS6035 and
PCI-DAS6036 only)
CTR2 CLK
CTR2 clock source
A/D START TRIGGER
ADC Start Trigger Out
A/D STOP TRIGGER
ADC Stop Trigger Out
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 (PCI-DAS6035 and PCI-DAS6036 only)
AUXIN4
D/A START TRIGGER (PCI-DAS6035 and
PCI-DAS6036 only)
AUXIN5
A/D PACER GATE
AUXOUT0
D/A UPDATE (PCI-DAS6035 and PCI-DAS6036 only)
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-DAS6034, PCI-DAS6035, and PCI-DAS6036 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 available signals are:
DAQ-Sync signals
DS A/D START TRIGGER
DS A/D STOP TRIGGER
DS A/D CONVERT
DS D/A UPDATE (PCI-DAS6035 and PCI-DAS6036 only)
DS D/A START TRIGGER (PCI-DAS6035 and PCI-DAS6036 only)
SYNC CLK

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Functional Details
19
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 the "DAQ
signal timing" section on page 20 for explanations of signals and timing.
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-DAS6034, PCI-DAS6035, and PCI-DAS6036

PCI-DAS6034, PCI-DAS6035, and PCI-DAS6036 User's Guide Functional Details
20
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
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.
CONVERT
SCANCLK
td td
tw
td = 50 ns
tw = 400 ns
Figure 5. SCANCLK signal timing
STARTSCAN signal
The STARTSCAN output signal indicates when a scan of channels has been initiated. You can program this
signal to be available at any of the AUXOUT pins. The STARTSCAN output signal is a 50 ns wide pulse the
leading edge of which indicates the start of a channel scan. Figure 6 shows the timing for the STARTSCAN
signal.
tw
tw = 50 ns
Figure 6. STARTSCAN start of scan timing