CPCI-520
4 Channel, 16-Bit, Analog Output Board
for the CompactPCI
Bus
FEATURES
4 output channels
Five 12-bit ranges plus two 16-bit ranges
+10, +5, 10, 5, 2.5 VDC at 12-bit
10 VDC, and 4 - 20 mA (source) at 16-bit
Interrupt interface circuitry (A through D)
Simultaneous updating on all channels
Available external clock and trigger
The CPCI-520 is an analog output board for the CompactPCI
bus providing 4 channels of 12- and 16-bit resolution with
simultaneous update capability for a wide variety of
applications. The board also provides an external gate and
trigger for synchronization to external systems. One 16-bit
counter is also available for user control.
Gains are set globally for the 4 DACs via software for the
ranges of 0 to +10, 0 to +5, 10, 5, and 2.5 VDC in 12-bit
mode, and 10 VDC and 4 to 20 mA in true 16-bit mode.
Settling time is typically less than 5 microseconds to 0.05% for
a full scale step.
An on-board counter and crystal dedicated to internal pacing
and timing allow for DAC update rates from 50 microseconds
to 3.3 seconds. Full access to an additional 16-bit counter is
also available.
Figure 1. Simplified Block Diagram
DATEL, Inc., Mansfield, MA 02048 (USA)
Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356
Email: sales@datel.com
Internet: www.datel.com
PRELIMINARY PRODUCT DATA
The CPCI-520 includes a Windows 95/98
and Windows NT
control panel. Also available are sample programs, source
code, and an ActiveX control for all popular programming
languages and packages.
DAC0
DAC1
DAC2
DAC3
Programmable
Logic
Programmable
Counter-Timer
Interrupt Select
A
B
C
D
VREG.
External Trigger In
DAC0 I
OUT
DAC0 V
OUT
DAC2 I
OUT
DAC2 V
OUT
DAC1 I
OUT
DAC1 V
OUT
DAC3 I
OUT
DAC3 V
OUT
Gate In
Clock In
Counter Out
Ext. Pacer Gate
+24V Power Out Filtered
+5 VDC Power Out
@ 0.25A
PCI
Controller
Pass Thru
Bus & Ctrl
CPCI
Bus
Front Panel
Activity Indicator
CPCI-520
DATEL, Inc., Mansfield, MA 02048 (USA)
Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356
Email: sales@datel.com
Internet: www.datel.com
Input/Output Connector
The I/O connector for the CPCI-520 is a standard 25-pin
female type D connector and is accessible at the front of the
CPCI chassis.
Figure 2. I/O Connector
Software
Windows 95/98/NT have become the platforms of choice for
many data acquisition, test, measurement, and control
applications. These feature rich, 32-bit operating systems
exploit huge amounts of memory, secure multi-threading, and
hardware plug-n-play (PnP) to provide high performing, user
friendly working environments.
CPCI-520WIN
Each CPCI-520 includes installation software for hardware
detection and initialization under Windows 95/98 and Windows
NT. The control panel provides an easy to use, point and click
graphical user interface (GUI) allowing access to all DACs,
including range selection, simultaneous update mode,
calibration, and reading and writing data to the counter.
CPCI-520WINS
The CPCI-520WINS includes all the features of the
CPCI-520WIN software plus the complete source code to the
GUI application (Microsoft Visual Basic) and DLLs (Visual
C++), and allows you to communicate with the CPCI-520 from
the familiar environment of your favorite high level language -
C/C++, Visual Basic, Delphi, LabVIEW
, etc. Its standard
Windows ActiveX control facilitates custom software
development of the CPCI-520 into other applications. The
source code also contains some simple example program
samples in Visual Basic, Visual C++, Quick C, and National
Instruments' LabVIEW.
LabVIEW Support
Included with the CPCI-520WINS, is a tutorial on how to
convert the CPCI-520 ActiveX control to a LabView VI (Virtual
Insturment) that allows complete hardware control under
LabVIEW. This software also allows for the control of multiple
CPCI-520s in one system and includes complete functional VI
sample programs.
Number of Channels
Four, non-isolated
D/A Resolution
12-bit and 16-bit (10 range only)
Voltage Ranges
10, 5, 2.5, 0 to +10, 0 to +5V
Current Ranges
4 to 20 mA at 16 bits
Current Loop Excitation
+24 VDC filtered at 125 mA max.
Load Current
(Voltage Mode)
5 mA min.
Output Resistance
0.1
typ.
Settling Time
(to 0.05% full-scale step) <5 s typ.
Accuracy
0.05%
Span
adjustable to zero
Offset
adjustable to zero
At Power-Up
Unipolar/Bipolar Output
Zero Volts
Pacer Clock Sources
Hardware
Internal or external clock
Software
Internal
On-board Pacer/Timer
50 s to 3.3 seconds,
software programmable
PCI Interrupt Source
An input port ready bit may
generate a PCI bus interrupt.
Internal pacer timer or external
trigger input, software
selectable.
Interrupt Line
Int A (default), B, C, or D (user
selectable)
Interrupt Timer Clock
Source
10 MHz crystal
Front Panel LED
User programmable lamp
PCI Controller
AMCC S5920
Outline Dimensions
CPCI 3U size, 4 PH single width
100 x 160 x 20.32 mm
Channel Update Mode
All channels simultaneous. In
parallel or individual, selected
by software.
ORDERING INFORMATION
CPCI-520
4 channel, 12- and 16-bit analog output
board for the CPCI bus (includes
CPCI-520WIN).
CPCI-520WIN
Windows 95/98/NT software application
for the CPCI-520. Includes Windows
device drivers and DLLs. (Included with
CPCI-520.)
CPCI-560WINS
Source code for CPCI-520WIN. Includes
the source code to the GUI application
ActiveX (Microsoft Visual Basic) and DLL
sources (Visual C++), plus sample
programs in C/C++, Visual Basic, and
National Instruments' LabVIEW
PC-8401
Recommended Screw Terminal Panel
PC-8503-x
Recommended cable 25 pin, male to female
(specify `x' as length 2, 3, or 5 feet).
13
12
11
10
9
8
7
6
5
4
3
2
1
+5 VDC
Ground
DAC 3 I
OUT
DAC 3 V
OUT
Ground
DAC 2 I
OUT
DAC 2 V
OUT
Ground
DAC 1 I
OUT
DAC 1 V
OUT
Ground
DAC 0 I
OUT
DAC 0 V
OUT
25
24
23
22
21
20
19
18
17
16
15
14
Ground
TMR2CLK
TMR2 Gate
TMR2 Out
Gate
Ext. Trig.
Ground
Ground
24 VDC
FILT
24 VDC
FILT
I
LOOP
Excit.
I
LOOP
Excit.
FUNCTIONAL SPECIFICATIONS (typical at +25C unless noted)
LabVIEW is a National Instruments trademark
Windows is a Microsoft Corporation trademark
CompactPCI is a PCI Industrial Computer Manufacterers Group trademark
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