DTS SLICE6 DAS User Manual
13006-90010-MAN (Rev. 0) © Diversified Technical Systems, Inc. All Rights Reserved.
SLICE6 DAS
User’s Manual
June 2018
SLICE6 DAS User’s Manual June 2018
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Table of Contents
DTS Support ....................................................................................................................... 4
Introducing the SLICE6 DAS ............................................................................................. 5
Sensor Interface ................................................................................................................. 5
Supported Sensor Types ................................................................................................. 6
Input Range ..................................................................................................................... 6
Excitation Sources ........................................................................................................... 6
Bridge Completion ........................................................................................................... 7
Hardware Filters ............................................................................................................... 7
Offset Compensation ....................................................................................................... 7
Electronic Identification (EID) ........................................................................................... 7
Shunt Emulation ............................................................................................................... 7
Communication Bus .......................................................................................................... 7
Communication Method ................................................................................................... 7
LED ...................................................................................................................................... 8
Data Memory Size............................................................................................................... 9
Sampling Rates ................................................................................................................ 9
Circular Buffer Limitations ............................................................................................ 9
Basic Care and Handling ................................................................................................. 10
Shock Rating .................................................................................................................. 10
Mounting Considerations ........................................................................................... 10
Thermal Considerations ................................................................................................. 10
SLICE6 DAS Maintenance ............................................................................................. 11
Power Management .......................................................................................................... 11
Power-up and Power-down Procedures ........................................................................ 11
Software ............................................................................................................................ 12
Data Collection Concepts............................................................................................... 12
Data Collection Modes ................................................................................................... 12
Circular Buffer Mode .................................................................................................. 12
Recorder Mode .......................................................................................................... 12
Hybrid Recorder Mode ............................................................................................... 13
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Continuous Recorder Mode ....................................................................................... 13
Start Record and Event Initiation ................................................................................... 13
Appendix A: Hardware Specifications ........................................................................... 15
Connector Information and Pin Assignments ................................................................. 15
Mechanical Specifications .............................................................................................. 17
Accessories/Support Equipment .................................................................................... 18
Appendix B: Sensor Interface Wiring Diagrams ........................................................... 19
Appendix C: Declaration of CE Conformity .................................................................. 20
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DTS Support
SLICE systems are designed to be reliable and simple to operate. Should you need
assistance, DTS has support engineers worldwide with extensive product knowledge and
crash test experience to help via telephone, e-mail or on-site visits.
The best way to contact a DTS support engineer is to submit a request through the DTS Help
Center web portal (support.dtsweb.com). You must be registered
(support.dtsweb.com/registration) to submit a request (https://support.dtsweb.com/hc/en-
us/requests/new). Registration also enables access to additional self-help resources and
non-public support information.
This manual supports the following products:
13006-90010: SLICE6 DAS Module, 2500 Hz filter
13006-90020: SLICE6 DAS Module, 3000 Hz filter
13006-90030: SLICE6 DAS Module, 20 kHz filter
13006-90040: SLICE6 DAS Module, 1500 Hz filter
13006-90050: SLICE6 DAS Module, 10 kHz filter
13006-90100: SLICE6 DAS Module, 500 Hz filter
13006-90120: SLICE6 DAS Module, 1000 Hz filter
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Introducing the SLICE6 DAS
The SLICE6 DAS is an ultra-small, low-power, high-shock-rated, data acquisition system
ideal for in-dummy and test applications with tight space constraints. Each unit contains a
system microprocessor, flash memory for data storage, PTPv2 Ethernet communications
support, and 6 analog sensor input channels supporting conventional bridge (piezo-resistive
and voltage) sensors, each with isolated excitation, high impedance differential input
amplifier, and automatic sensor identification circuits. Units can be interconnected (daisychained) via the communication bus connector.
• Sample rates up to 400,000 sps on 6 channels simultaneously.
• Shock rated to 2000 g for dynamic testing environments.
• 6-channel analog sensor interface supports accelerometers, load cells, pressure
sensors, strain gage and piezo-resistive bridges, and voltage inputs.
• Thermocouples, 1/4 bridges and other sensor types are supported with adapters as
needed.
• LED indicator for system status.
• Ethernet PTPv2 communications (IEEE1588) and sensor ID easily support test set-
ups daisy-chaining hundreds of channels.
Connector information, pin assignments and mechanical specifications can be found in
Appendix A. Common sensor wiring schematics are shown in Appendix B. Please see your
packing list for your hardware’s specifications.
Sensor Interface
The SLICE6 DAS supports 6 sensor measurement channels and is available with a single
connector that supports all sensor signals. See Appendix A for sensor connector pin
assignments.
Sensor interface
connector
Communication bus
Sensor alignment
guide pins
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SLICE6 DAS Sensor Interface
Supported Sensor Types
Supplying 5 V excitation up to 20 mA per channel, the SLICE6 DAS supports many types of
sensors including accelerometers, load cells and pressure sensors. The following general
sensor types are supported:
• Full- (4-wire) or half-bridge (2- or 3-wire) resistive and piezo-resistive types.
• Voltage input range: 0.1 to 4.9 V; larger ranges supported with range expander cable.
• Conditioned sensors with 5 V excitation and 2.5 V centered signal output.
For additional questions regarding supported sensors, please contact DTS and provide the
sensor manufacturer and model number, if available. For specific implementation
schematics, see Appendix B.
Input Range
The nominal sensor input range is -2.4 V to +2.5 V (2.5 V center with respect to -Ex) at a
gain of 1. At higher gains, the maximum range decreases correspondingly. For example, at
a gain of 10, the input range is ±240 mV. (The software will automatically calculate the gain
based on the user-specified input range and other sensor parameters.)
Excitation Sources
The excitation source for each sensor measurement channel is individually regulated.
Excitation sources are not turned on until the software initializes the system during
diagnostics. The excitation is fixed at 5.0 V.
2018 Diversified Technical Systems, Inc. All Rights Reserved.
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Bridge Completion
Half-bridge emulation for any channel may be selected via software. Half-bridge transducers
should be connected to ±Ex and -Sig.
Hardware Filters
Each measurement channel has a fixed frequency, 4-pole Butterworth anti-aliasing filter.
There are a variety of hardware filters available, including 500 Hz, 1000 Hz, 1500 Hz,
2500 Hz, 3000 Hz, 10 kHz and 20 kHz. Should you have any questions regarding the best
filter option for your application, please contact DTS.
Offset Compensation
Each channel can compensate for a sensor offset of up to 100% of the full-range output of a
sensor. The sensor offset is measured and the hardware compensation is adjusted during
the diagnostic check. Please see the software manual for additional information.
Electronic Identification (EID)
Each measurement channel supports communication with silicon serial number devices
manufactured by Dallas Semiconductor/Maxim Integrated Products (model DS2401). When
an ID chip is connected to the proper pins on the sensor connector, the software can
automatically read these devices and correlate the serial number to channel set-up
information stored in the sensor database.
Shunt Emulation
The SLICE6 DAS contains a shunt emulation circuit, effectively eliminating the need for
conventional shunt resistors to perform shunt checks. When “Emulation” is chosen as the
shunt calibration method, the software injects a precisely-calculated current into the sensor
to create an expected deflection of the sensor's output. Expected versus actual deflection
are compared to validate that the channel is working properly. Please see the software
manual for additional information.
Communication Bus
All communications, control signals and input power are provided
via the 21-socket, Nano-D communication bus connector. It is also
used to interconnect (daisy-chain) multiple units for hundreds of
test channels. See Appendix A for pin assignments.
Communication Method
The SLICE6 DAS supports Ethernet PTPv2 communications (IEEE1588). PTP (Precision
Timing Protocol) provides standards for precision clock synchronization for measurement
and control systems via Ethernet network communications. Timing information is extracted
from the network’s master clock and used by the SLICE6 DAS to adjust their internal (local)
clock, providing precision timing for high channel-count systems with a sampling
synchronization better than 10 µs. Communication is enabled after the initialization
sequence has completed (15-30 seconds after sufficient power is applied).
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