Measurement Computing PCIM-DDA06/16 User manual

PCIM-DDA06/16
Analog Output and Digital I/O
User's Guide
January 2019. Rev 9
© Measurement Computing Corporation

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HM PCIM-DDA06-16.docx
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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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Table of Contents
Preface
About this User's Guide .......................................................................................................................4
What you will learn from this user's guide .........................................................................................................4
Conventions in this user's guide .........................................................................................................................4
Where to find more information.........................................................................................................................4
Chapter 1
Introducing the PCIM-DDA06/16..........................................................................................................5
Functional block diagram...................................................................................................................................5
Chapter 2
Installing the PCIM-DDA06/16..............................................................................................................6
Unpacking...........................................................................................................................................................6
Installing the software ........................................................................................................................................6
Configuring the hardware...................................................................................................................................6
Simultaneous transfer jumper ........................................................................................................................................... 6
Analog output range switch .............................................................................................................................................. 7
Installing the hardware .......................................................................................................................................7
Signal connections..............................................................................................................................................8
Cabling.............................................................................................................................................................................. 9
Field wiring, signal termination, and conditioning ........................................................................................................... 9
Chapter 3
Specifications......................................................................................................................................10
Analog output ...................................................................................................................................................10
Accuracy..........................................................................................................................................................................10
Analog output drift...........................................................................................................................................................11
Digital I/O.........................................................................................................................................................11
Power consumption ..........................................................................................................................................11
Environmental ..................................................................................................................................................11
Mechanical .......................................................................................................................................................11
Signal connector...............................................................................................................................................12
EU Declaration of Conformity............................................................................................................13

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Preface
About this User's Guide
What you will learn from this user's guide
This user's guide describes the Measurement Computing PCIM-DDA06/16 data acquisition device and lists
device specifications.
Conventions in this user's guide
For more information
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.
bold text Bold text is used for the names of objects on the 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 PCIM-DDA06/16 hardware is available on our website at www.mccdaq.com.
You can also contact Measurement Computing Corporation with specific questions.
Knowledgebase: kb.mccdaq.com
Tech support form: www.mccdaq.com/support/support_form.aspx
Email: [e-mail]
Phone: [phone] and follow the instructions for reaching Tech Support
For international customers, contact your local distributor. Refer to the International Distributors section on our
web site at www.mccdaq.com/International.
If you need to program at the register level in your application, refer to the Register Map for the PCIM-
DDA06/16 on our website at www.mccdaq.com/registermaps/RegMapPCIM-DDA06-16.pdf.

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Chapter 1
Introducing the PCIM-DDA06/16
The PCIM-DDA06/16 has six channels of analog output and 24 bits of digital input/output. Analog outputs are
from AD660 DACs, with each output buffered by an OP27. Digital I/O is performed with an 82C55.
Analog output ranges are either Bipolar or Unipolar. Bipolar ranges are ±10 V and ±5 V. Unipolar ranges are 0
to 10 V and 0 to 5 V. You set the analog output range for each DAC with an onboard switch. You set the analog
outputs for simultaneous or individual transfer with an on-board jumper.
The PCIM-DDA06/16 digital I/O lines are a direct interface to an 82C55. The 82C55 is a CMOS chip with TTL
level inputs and outputs. The 8255 can source or sink about 2.5 mA. This is enough to switch other TTL or
similar inputs, but is inadequate to drive relays, LEDs or solid-state relays without additional buffering.
The 82C55 digital I/O chip initializes all ports as inputs on power-up and reset.
The PCIM-DDA06/16 digital I/O is controlled by programming the 8255's mode register. There are three
possible modes. The most commonly used mode is Mode 0, simple input and output.
Functional block diagram
The PCIM-DDA06/16 board consists of two functional sections: analog output and digital I/O. The digital I/O
section consists of a single 82C55, and a 24-line digital I/O chip. The analog output section consists of six
identical circuits, each consisting of a DAC, an OP27 output buffer, and a gain range control switch. You can
control each analog output individually or control all six outputs simultaneously.
PCIM-DDA06/16 functions are illustrated in the block diagram shown here.
Figure 1. Functional block diagram

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Chapter 2
Installing the PCIM-DDA06/16
Unpacking
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the device 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.
Contact us immediately if any components are missing or damaged.
Installing the software
Refer to the MCC DAQ Quick Start and the PCIM-DDA06/16 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 PCIM-DDA06/16 is installed with the software. Therefore, you need to install the
software package you plan to use before you install the hardware.
Configuring the hardware
The PCIM-DDA06/16 board has six banks of five switches for setting the gain for each DAC, and one
simultaneous transfer jumper to set the DAC update mode. Each analog channel also has an associated gain and
offset potentiometer for calibrating the channel, if necessary.
The PCIM-DDA06/16 is shipped with the following factory-default settings:
Switch/jumper factory-configured defaults
Board label Switch/jumper description Default setting
XFER or UPDATE
Simultaneous or individual DAC update
jumper
UPDATE position (single channel update)
CH0 through CH5
(S1 through S6)
Analog output range DIP switches ±5V
Before installing the PCIM-DDA06/16 in the computer, verify that the board is configured with the settings that
you want. Review the following information to change the default configuration of a jumper or switch on the
PCIM-DDA06/16 board.
Simultaneous transfer jumper
The simultaneous transfer jumper controls whether to update DAC channels individually (default) or as a group.
This jumper is shown in Figure 2 configured in its default UPDATE position.
Figure 2. Simultaneous transfer jumper

PCIM-DDA06/16 User's Guide Installing the PCIM-DDA06/16
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Set the jumper to XFER to update the DAC voltage outputs as a group.
New output data is held until all DACs are loaded with their new digital data.
The data for each DAC is simultaneously transferred and the DAC voltage outputs are updated as a group
when any of the addresses BADR3 + 0 to BADR3 + B are read. Writing new digital values to the DAC
control register does not cause an update of the DAC's voltage output. Update of the output occurs only
after the DAC control register address (any of the addresses BADR3 + 0 to BADR3 + B) is read
In this way, the PCIM-DDA06/16 can be set to hold new values until all channels are loaded, then update
all six channels simultaneously. This is a very useful feature for multi-axis motor control.
Set the jumper to UPDATE to update the DAC voltage outputs individually.
The analog outputs are controlled by writing a digital control word as two bytes to the DAC's control
register. The control register is double-buffered, so the DAC output is not updated until both bytes (first
low byte, then high byte) are written to the DAC control register when the simultaneous transfer jumper is
in the default UPDATE position.
Analog output range switch
You set the analog output voltage range of each with a five-position DIP switch. The switches are located on the
board directly above the DACs and are labeled CH5 through CH0 (S6 through S1). Bipolar ranges are ±10 V
and ±5 V. Unipolar ranges are 0 to 10 V and 0 to 5 V.
Figure 3 lists the range value and associated settings for each switch.
Figure 3. Analog output range switch—one per DAC
To set a channel to a particular range, read the switch positions as U(up) or D(down) from left to right in the
row beside the range you want to set.
Installing the hardware
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.
After you configure the board's switches and jumpers, install the PCIM-DDA06/16 into your computer. Perform
the following steps to install the board:
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.
When connected for the first time, a Found New Hardware dialog opens when the operating system detects
the device. When the dialog closes, the installation is complete. If you have not installed the MCC DAQ
software, cancel the dialog and install it now.
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.

PCIM-DDA06/16 User's Guide Installing the PCIM-DDA06/16
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If your board has been powered-off for more than 10 minutes, allow your computer to warm up for at least
15 minutes before acquiring outputting analog data with this board. This warm-up period is required for the
board to achieve its rated accuracy. The high-speed components used on the board generate heat, and it takes
this amount of time for a board to reach steady state if it has been powered off for more than 10 minutes.
Signal connections
The table below lists the board connector, applicable cables, and compatible accessory products.
Board connector, cables, and accessory equipment
Connector type
37-pin male D connector
Compatibility
Pinout identical to CIO-DDA06/16
Compatible cables
C37FF-x
C37FFS-x
DFCON-37 (D-connector, D-shell, and termination pins to construct your own
cable)
Compatible accessory products
with the C37FF-x cable or
C37FFS-x cable
CIO-MINI37
CIO-TERMINAL
SCB-37
SSR-RACK24
ENC-MINI37
Information on signal connections
General information regarding signal connection and configuration is available in the Guide to DAQ Signal
Connections (available for download from www.mccdaq.com/support/DAQ-Signal-Connections.aspx.)
The I/O connector is a standard 37-pin male connector that is accessible through the PC/AT expansion bracket.
Figure 4. I/O connector pinout

PCIM-DDA06/16 User's Guide Installing the PCIM-DDA06/16
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The analog outputs of the PCIM-DDA06/16 are two-wire hook-ups. Always use analog ground (LLGND) as the
ground reference for all analog hook-ups.
Cabling
Figure 5. C37FF-x cable
Figure 6. C37FFS-x cable
Field wiring, signal termination, and conditioning
You can use the following cabling, screw termination, and signal conditioning products with the PCIM-
DDA06/16.
CIO-MINI37 – 37-pin screw terminal board.
CIO-TERMINAL – 37-pin screw terminal board with on-board prototyping area.
SCB-37 – 37 conductor, shielded signal connection/screw terminal box that provides two independent 50-
pin connections.
SSR-RACK24 – 24-channel, solid-state relay mounting and interface board for digital signal conditioning.
ENC-MINI37 – Enclosure for the MINI37.
DFCON37 – Connector kit that includes a 37-pin female D-connector, D-shell, 37 crimp pins, and cable
termination kit to construct your own cable.
Details on these products are available on our website.

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Chapter 3
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 output
Table 1. Analog output specifications
Parameter Specification
D/A converter type
AD660BR
Resolution
16 bits
Number of channels
6
Voltage ranges
±10 V, ±5, 0 to 10 V, 0 to 5 V. Ranges are switch selectable
D/A pacing
Software paced
Throughput System-dependent. Using the Universal Library programmed output
function (cbAOut()) in a loop, in Visual Basic, a typical update rate
of 150 kHz (± 70 nS jitter) can be expected. The rate was measured on
a 500 MHz Pentium III based PC.
Data transfer
Programmed I/O
Monotonicity
15 bits guaranteed over temperature
Slew rate
1.7 V/µs min, 2.4 V/µS typ
Current drive
±5 mA min
Output short-circuit duration
Indefinite
Power-on reset voltage
0 V ±15 mV
Miscellaneous
Double buffered output latches
Update DACs individually or simultaneously (jumper selectable)
Accuracy
Table 2. Analog output accuracy specifications
Parameter Specification
Absolute accuracy
±2.0 LSB max
Typical accuracy
±1.0 LSB max
Gain error
Trimmable by potentiometer to 0
Offset error
Trimmable by potentiometer to 0
Integral linearity error
±1.0 LSB max, ±0.5 LSB typ
Differential linearity error
±1.0 LSB max, ±0.5 LSB typ
Each PCIM-DDA06/16 is tested at the factory to assure the board’s overall error does not exceed ±2.0 LSB.
Total board error is a combination of gain, offset, integral linearity and differential linearity error. The
theoretical worst-case error of the board may be calculated by summing these component errors. Worst case
error is realized only in the unlikely event that each of the component errors are at their maximum level and
causing error in the same direction.
Typical accuracy is derived directly from the various component typical errors. This typical, maximum error
calculation for the PCIM-DDA06/16 yields ±1.0 LSB.