Method and apparatus for interconnecting modules
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United States of America Patent
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Mar 29, 2011
Grant Date -
Aug 6, 2009
app pub date -
Jan 29, 2009
filing date -
Feb 1, 2008
priority date (Note) -
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Abstract
An industrial process control apparatus and method that includes a number of processors and a number of input/output modules. Each processor is connected to a plurality of the input/output modules by a unidirectional command line. Each input/output module is connected to a plurality of the processors by a unidirectional response line. The processors are arranged to issue an identifier request to all of the connected input/output modules and each input/output module is arranged to respond to the identifier request via the respective response line with a response that includes a unique identifier. Such a configuration allows each processor to identify the physical location of each respective input/output module.
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