DTS SLICE6 DAS User manual

13006-90440-MAN (Rev. 1) © Diversified Technical Systems, Inc. All Rights Reserved.
SLICE6 AIR DAS
User’s Manual
February 2020

SLICE6 AIR DAS User’s Manual February 2020
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TableofContents
DTS Support ....................................................................................................................... 4
Introducing the SLICE6 AIR DAS...................................................................................... 5
Sensor Interface................................................................................................................. 6
Supported Sensor Types ................................................................................................. 6
Input Range ..................................................................................................................... 6
Excitation Sources........................................................................................................... 7
Bridge Completion ........................................................................................................... 7
Hardware Filters............................................................................................................... 7
Offset Compensation....................................................................................................... 7
Electronic Identification (EID)........................................................................................... 7
Shunt Emulation............................................................................................................... 7
System Connector.............................................................................................................. 8
Communication Method................................................................................................... 8
Timing Synchronization.................................................................................................... 8
Power Management......................................................................................................... 8
Power-up and Power-down Procedures...................................................................... 9
LEDs.................................................................................................................................... 9
Status (STS) LED ............................................................................................................ 9
Power (PWR) LED......................................................................................................... 10
Data Memory Size............................................................................................................. 11
Sampling Rates.............................................................................................................. 11
Circular Buffer Limitations.......................................................................................... 11
Basic Care and Handling................................................................................................. 12
Shock Rating.................................................................................................................. 12
Mounting Considerations........................................................................................... 12
Thermal Considerations................................................................................................. 12
Environmental Rating..................................................................................................... 13
Software............................................................................................................................ 14
Data Collection Concepts............................................................................................... 14
Data Collection Modes................................................................................................... 14

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Circular Buffer Mode.................................................................................................. 14
Recorder Mode.......................................................................................................... 14
Hybrid Recorder Mode............................................................................................... 15
Continuous Recorder Mode....................................................................................... 15
Data Streaming.............................................................................................................. 15
Start Record and Event Initiation ................................................................................... 15
Appendix A: Hardware Specifications........................................................................... 17
Mechanical Specifications, Connector Information and Pin Assignments...................... 17
Ethernet Chaining.......................................................................................................... 18
Accessories/Support Equipment.................................................................................... 18
Appendix B: Hardware Configuration Specifications.................................................. 19
Using the SLICE Network Configuration Utility .............................................................. 19
Appendix C: Sensor Interface Wiring Diagrams........................................................... 22
Appendix D: Declaration of CE Conformity .................................................................. 30

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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:
13006-90440: SLICE6 AIR DAS Module (Alpha)
13006-90441: SLICE6 AIR DAS Module

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Introducing the SLICE6 AIR DAS
SWaP optimized and IP65 rated, the SLICE6 AIR DAS is a complete data acquisition unit for
measuring analog signals in extreme environments such as payload ejection/deployment; in-
flight/on-board UAVs/drones, rockets, missiles and munitions; and biomechanics. PTPv2
Ethernet communications and real-time data streaming up to 20,000 sps per channel with
on-board data storage to flash memory are supported. Each unit includes 6 sensor input
channels and can be used standalone or interconnected/networked for high channel count
systems.
•Sample rates up to 400,000 sps on 6 channels simultaneously via record in place.
•Shock rated to 500 g for dynamic testing environments.
•6-channel analog sensor interface supports accelerometers, load cells, pressure
sensors, strain gage and piezo-resistive bridges, IEPE and voltage inputs.
•Ethernet PTPv2 communications (IEEE1588) and sensor ID easily support test set-
ups of hundreds of channels.
•Real-time data streaming up to 20,000 sps per channel
•Optional time source synchronization using IRIG-B122, GPS and 1 PPS standards.
•LED indicators for system and power status.
Connector information, pin assignments and mechanical specifications can be found in
Appendix A. Common sensor wiring schematics are shown in Appendix C. Please see your
packing list for your hardware’s specifications.
Sensor interface
connector
System connector

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Sensor Interface The SLICE6 AIR DAS supports 6 sensor measurement
channels via the 51-pin, micro-D sensor interface connector.
See Appendix A for sensor connector pin assignments.
2019-2020 ©Diversified Technical Systems, Inc. All Rights Reserved.
SLICE6 AIR DAS Sensor Interface
Supported Sensor Types
The SLICE6 AIR DAS supports many types of sensors including accelerometers, load cells
and pressure sensors. The following general sensor types are supported:
•Full- bridge (4-wire) or half-bridge (3-wire) resistive and piezo-resistive sensors
•IEPE sensors
•Conditioned sensors with 5 V excitation and an output voltage of 0-5 V.
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 C.
Input Range
The nominal sensor input range for bridge and piezo-resistive sensors is 0-5 V
1
(2.5 V center
with respect to -Ex) at a gain of 1. The sensor input range for IEPE sensors is 0.5-23.5 V.
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.)
1
Larger ranges supported with range expander cable. Contact DTS for more information.

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Excitation Sources
Bridge excitation sources are fixed and independently current limited at 5 V, 20 mA. IEPE
excitation is supported with a constant current of 5 mA with a source voltage of 24 V.
Excitation sources arenot enabled until the software initializesthe system during diagnostics.
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, 50 kHz, 4-pole and an adjustable 5-pole
Butterworth anti-aliasing filter supporting 1 Hz-40 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 (1-wire devices such as
DS2401 and DS2431). 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 AIR 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.

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System Connector All communications, control signals and input power are
provided via the 25-pin, micro-D system connector. Using
a SLICE6 AIR Chain Module or other interface, multiple
units can be interconnected (daisy-chained) for hundreds of
test channels.
Ethernet signals must be connected in series with a maximum cable length of ~10 m. (Cable
quality may affect maximum length and performance.) Control signals must be connected in
parallel. See Appendix A for pin assignments.
Communication Method
The SLICE6 AIR 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 AIR DAS
to adjust their internal (local) clock, providing precision timing for highchannel-count systems
with a sampling synchronization better than 10 µs. Communication is enabled after the
initialization sequence has completed (~15 s after sufficient power and ON signal is applied).
(Note network congestion may slow IP address acquisition.)
Timing Synchronization
System-wide, channel-to-channel, time source synchronization is supported using
IRIG-B122, GPS and 1 PPS. Serial data (RS232 or RS422) from an external GPS source
can be recorded, and 1 PPS may be used with or without GPS.
Power Management
A good power source is of paramount importance. SLICE6 AIR DAS should be powered
from a high-quality power supply. Be sure to consider any power drop due to cable length.
Power Consumption (on 1588 network)
Input Voltage
Idle
IEPE off;
Armed and Recording
IEPE on;
Armed and Recording
9-30 VDC2
<1.5 W
<2.7 W
<3.3 W
The SLICE6 AIR DAS does not contain an internal battery and must be connected toexternal
power at all times for operation. Without external power applied, the SLICE6 AIR DAS is in
a power off state.
When the unit is on (sufficient power and ON signal applied), power consumption depends
largely on the connected sensor load and whether the unit is armed.
2
Commercially-available 9 V batteries should not be used to power the SLICE6 AIR DAS.

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Power-up and Power-down Procedures
When sufficient power is applied, the SLICE6 AIR DAS will power up (on, idle and communi-
cation enabled) if an ON signal is present. With power applied but the ON signal absent, the
unit is off. Power up (On state) occurs in ~15 s, after which communication is enabled.
Power down of the DAS is immediate upon removal of either the ON signal or external power.
Wait ~30 s before reinitializing the DAS.
LEDs The SLICE6 AIR DAS has a two LED indicators that show
system and power status.
Status (STS) LED
The status LED indicates communication and arm status and is red, green or blue. At system
power up, the LED cycles from red to green to blue followed immediately by the power LED
boot-up sequence.
Action
Result
Power up
Communicating with PC
Recording Data (Recorder Mode) -or- Armed (Circular Buffer) -or-
Real-Time Streaming
Armed in Recorder Mode
Unit received Event
Idle
•When the unit is not armed, the status LED will blink green when handling a
command from the PC.
•For Recorder Mode:
-When the unit is first armed, the LED will go solid blue to indicate that it is waiting
for the START RECORD signal but not taking data.
-When it receives the START RECORD signal, the LED will turn green to indicate
that it is actively recording data.
-The LED will turn off when data collection has completed.
-If an EVENT signal is received while the unit is recording data, the LED will turn
red and then turn off when data collection has completed.
•For Circular Buffer Mode:
-When the unit is armed, the LED will go solid green to indicate that it is collecting
data and waiting for the EVENT signal.
-When an EVENT signal is received the LED will turn red and then turn off when
data collection has completed.

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Power (PWR) LED
The power LED is red, green or blue.
Action
Result
Power up
Connected to host
Power up; not connected to host
Power fault (input power out of range)
•At power up, the LED cycles from red to green to blue immediately after the status
LED has completed its boot-up sequence.
•When connected to host, the LED will turn blue.
•At power up but not connected to host, the LED will turn green.
•When input power is too high or too low, the LED will turn red.