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Industrial Analog I/O
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Engineering & Manufacturing > Product Design

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  • Posted: Thu, Dec 27, 2012
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:
    Anywhere

    You are still able to submit a proposal for this job.

    The client prefers freelancers from
    a different location.

    You're still able to submit a proposal for this job, regardless of your location.
  • Start: Immediately
  • Budget: $500 - $1,000
  • Fixed Price Job
  • Elance Escrow Protection
  • W9 Not Required
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Buyer is seeking embedded designer to provide industrial quality I/O for analog signals like

~ Analog Input (4-20mA,0-10V,RTD, TC )
~ Analog Output (4-20mA,0-10V)

The various input signals shall be selectable via hardware jumper or i2c commands.

The board shall have be addressable i2c slave , and shall follow the reference design as follows.

  [obscured]  /en/content/cu_eb_plc_demo_system/fca.html


This reference design has an RS-232 interface which shall be removed and modified to be an i2c slave .It is also preferable to have 12-bit resolution for the I/Os than 24-bit

The Form factor should be as such that it can be accomodated in a DIN rail enclosure.

The deliverables are

~ Schematic
~ Parts list
~ Example PCB Layout (designer's choice of software, with buyer's approval)
~ Brief write-up of circuit operation, strengths, weaknesses, and past experiences using the circuit

Further to the sucessful completion , buyer intends to increase scope throu...

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Job ID: 36338804
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