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Working with Discrete IO

Working with Discrete IO - MFET 248 Automated Manufacturing...

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MFET 248, Automated Manufacturing III 2/1/2010 Working with Discrete I/O 1 MFET 248 Automated Manufacturing III Working with Discrete I/O T.E. Kostek Spring 2010 Topics • Introduction Di/Do Applications Equivalent Circuits Sinking/Sourcing defined based on current flow Sinking/Sourcing defined based on the field 2 wiring Wiring NPN and PNP proximity sensors Di/Do Design
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MFET 248, Automated Manufacturing III 2/1/2010 Working with Discrete I/O 2 Introduction Introduction - Sources of Information Product data sheets/user manuals S ifi ti d i i di f di t d l Specifications and wiring diagrams for discrete modules are well documented in the publication: “Discrete I/O Modules – Installation Instructions” (publication 1746-5.3-September 1997 or later) Screen printed wiring diagrams printed on devices (PLC I/O modules, sensors, etc.) 4 Allen-Bradley DC discrete I/O modules are labeled “Sinking” and “Sourcing”
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