This chapter provides information on the three different modes Control Expert allows to address the I/O data from a Quantum I/O module:
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Flat Addressing
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Topological Addressing
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IODDT Addressing
NOTE: Topological addresses overlapping (%IWr.m.c) is not supported by Quantum application, use flat addressing (%IWx) when memory overlapping control is needed.
NOTE: The different addressing modes refer to the same physical location in the PLC memory for a given data point.
While Flat Addressing and Topological Addressing are available for all Quantum I/O modules, IODDTs are only provided for modules that deliver information in addition to the I/O values (e.g. errors or warnings).
Also provided is information about I/O module status bytes and bit order.
This chapter contains the following topics:
