Light Bulb Soft-Device

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Overview

A Light Bulb Digital Output Soft-Device is capable of driving a two-wire light source.  A light bulb used in industrial controls is generally an LED because of the significantly longer lifetime of an LED compared to a filament-based bulb.  The cost difference of an LED compared to a filament-based light bulb is small compared to the cost of bulb failure.  Light bulbs are widely used as indicators on panels and enclosures.  You may connect the two wires from the light bulb to any two Soft-I/O pins, or you may connect one wire to the same pin as other digital output devices and then connect the second wire to any other Soft-I/O pin, thus saving pins.  Your may configure the output pin to source current or sink current.  It's up to you.  Just make sure that the common is the same level.  Or course, Soft-I/O will guide you to make sure that you to not accidentally connect it up incorrectly.  It's that simple!

Features

  • Two-wire connection
  • Soft-I/O supplies power to the  light bulb, up to 12 Watts!
  • You can drive the  light bulb with either 5 volts or 24 volts
  • You choose the state names
  • You can invert the state names
  • Flexible pin assignments
  • Non-volatile saving of settings
  • Flexible tags for remote control

In Action

You configure the  light bulb by giving it a name--for example "System Ready" and then drag-and-drop the connections to any Soft-I/O pins.  Light bulbs may be flashed to attract attention or to change the brightness of the light.  When you have finished the  light bulb configuration, merely submit your choices and then test the  light bulb on the Soft-Device page.  What could be simpler? 

Technical Specifications

Each  light bulb is connected to the Soft-I/O module with two wires—the module supplies  light bulb power, and that simplifies wiring.
Non-volatile, user-configurable parameters include: Soft-I/O module supplied 24 V or 5 V power selection; sourcing or sinking circuit configuration and state naming and Soft-I/O pin assignments.

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