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CJ2 CPU Unit Software User's Manual - CIP ETI

CJ2 CPU Unit Software User's Manual - CIP ETI

CJ2 CPU Unit Software User's Manual - CIP ETI

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8 I/O Allocations and <strong>Unit</strong> SettingsI/O Allocation Method for Each <strong>Unit</strong> ClassificationThis section describes the I/O allocation method for each <strong>Unit</strong> classification (Basic I/O <strong>Unit</strong>s, SpecialI/O <strong>Unit</strong>s, and <strong>CPU</strong> Bus <strong>Unit</strong>s). I/O Allocation to Basic I/O <strong>Unit</strong>sCJ-series Basic I/O <strong>Unit</strong>s are allocated words in the I/O Area (CIO 0000 to CIO 0159). They can beconnected to the <strong>CPU</strong> Rack or Expansion Racks. The following method is used.Basic I/O <strong>Unit</strong>s in the <strong>CPU</strong> RackNoteBasic I/O <strong>Unit</strong>s on the <strong>CPU</strong> Rack are allocated words from left to right starting with the <strong>Unit</strong> closestto the <strong>CPU</strong> <strong>Unit</strong>. Each <strong>Unit</strong> is allocated as many words as it requires.<strong>Unit</strong>s that have 1 to 16 I/O points are allocated16 bits and <strong>Unit</strong>s that have 17 to 32 I/O points areallocated 32 bits.Power Supply <strong>Unit</strong><strong>CPU</strong> <strong>Unit</strong>←CIO0000Connected <strong>Unit</strong>s→End Cover<strong>CPU</strong> RackExampleFrom the left→ 1 2 3 4 5Power Supply <strong>Unit</strong><strong>CPU</strong> <strong>Unit</strong>IN16 pt0000IN16 pt0001IN32 pt00020003OUT32 pt00040005OUT64 pt0006to0009<strong>CPU</strong> Rack8-6 <strong>CJ2</strong> <strong>CPU</strong> <strong>Unit</strong> <strong>Software</strong> User’s <strong>Manual</strong>

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