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Data Delivery Devices LLC may provide custom
electrical engineering design, development and software for SCADA, Motion
Control, Variable
Speed / Frequency Drive, Sensor, Wireless, Operator
Interface, Down Hole and similar harsh environment, high reliability industrial applications.
There are thousands of our designs installed around the world under various
brand names.
We have extensive analog and digital hardware design experience, with designs
installed in the harshest locations worldwide. Real time industrial control
software, remote
data acquisition / logging, SCADA, Modbus etc. for various embedded processor
(C, assembly) and PC (C, VB etc) applications may also be provided.
Available on a time or
project basis; services may be on or off site; engineering laboratory
facilities, CAD, schematic capture, PCB layout, SMD prototype assembly are all available in house. We can
provide specific expertise, prototypes or a complete turnkey design. References
from several major manufacturers are available upon request. We hold two patents (US5515038, UK2283889) on
digital data transmission methods.
Sample Projects:
Hardware and firmware for a 4/8/12 pocket stacker which integrates with a
very high speed (300 pages per minute) page printing system.
Down hole instrument designs that incorporate capacitive and quartz pressure /
temperature transducers into monitoring tools for permanent installation on
submersible oil-field motors. Extreme environment (5000 PSI, 302°F), high
reliability designs.
Remote telephone-controlled communications receiver interface.
PC test system for firmware download & product testing for a
range of gauges and gauge controllers using J1939 CAN and Modbus interfacing.
VSD monitoring interface for complex loads, provides true RMS measurements of
non-sinusoidal three phase currents, voltages and frequency.

PC-104 based embedded controller for variable speed drives (100 to 1200 KVA).
Incorporates an LCD display, keypad, four serial ports plus extensive analog and
digital I/O. Provides intelligent pump control customized for above and below
ground oil field applications. This harsh environment design is used worldwide.
Serial RS-485 interface boards.
PC-104 based general I/O controller for a pressure and temperature sensing
down hole instrument. The unit includes flat panel display, multiple serial
ports, four embedded microprocessors, relays, analog to digital converters, a
variable high voltage power supply, switched capacitor signal filters and
additional signal conditioning and protection components.
Generator controller with extensive analog, digital, CAN, Modbus and other
interfaces.
Operator interfaces and controllers for several brands of variable speed drives used in
oilfield applications. Supports a 4x20 display, keypad, multiple serial ports,
Modbus, logging, printers multiple analog / digital I/O, full motion control
etc.
3 Phase Motor controllers for oil wells and submersible
pumps.
Standalone surface unit RTU tester for harsh environments.
RFScada design, development and custom modifications.
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