CJ2 CPU Unit Software User's Manual - CIP ETI
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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> Settings I/O Allocation to <strong>CPU</strong> Bus <strong>Unit</strong>sEach CJ-series <strong>CPU</strong> Bus <strong>Unit</strong> is allocated 25 words in the <strong>CPU</strong> Bus <strong>Unit</strong> Area (CIO 1500 toCIO 1899) according the unit number set on the <strong>Unit</strong>. <strong>CPU</strong> Bus <strong>Unit</strong>s can be mounted to the <strong>CPU</strong>Rack or Expansion Racks. The following table shows which words in the <strong>CPU</strong> Bus <strong>Unit</strong> Area areallocated to each <strong>Unit</strong>.<strong>Unit</strong> number Number of words Words allocated0 25 CIO 1500 to CIO 15241 25 CIO 1525 to CIO 15492 25 CIO 1550 to CIO 1574: : :15 25 CIO 1875 to CIO 1899<strong>CPU</strong> Bus <strong>Unit</strong>s are ignored during I/O allocation to Basic I/O <strong>Unit</strong>s. Positions containing <strong>CPU</strong> Bus<strong>Unit</strong>s are not allocated any words in the I/O Area. The unit numbers of <strong>CPU</strong> Bus <strong>Unit</strong>s are differentfrom the unit numbers of Special I/O <strong>Unit</strong>s. Using the same unit number for both a <strong>CPU</strong> Bus <strong>Unit</strong> anda Special I/O <strong>Unit</strong> will not result in duplicate use of unit numbers.ExamplePower Supply <strong>Unit</strong><strong>CPU</strong> <strong>Unit</strong>0 1 2 3 4IN16 ptSpecialI/O<strong>Unit</strong><strong>CPU</strong>Bus<strong>Unit</strong>CIOOUT16 pt<strong>CPU</strong>Bus<strong>Unit</strong>CIO0000 2000 1500 0001 1525to to to2009 1524 1549Slot <strong>Unit</strong> ModelWordsrequiredWordsallocated<strong>Unit</strong>numberGroup0 16-point DC Input <strong>Unit</strong> CJ1W-ID211 1 CIO 0000 --- Basic I/O <strong>Unit</strong>1 Analog Input <strong>Unit</strong> CJ1W-AD081 10 CIO 2000 to 0 Special I/O <strong>Unit</strong>CIO 20092 Serial CommunicationsCJ1W-SCU41 25 CIO 1525 to 1 <strong>CPU</strong> Bus <strong>Unit</strong><strong>Unit</strong>CIO 15493 16-point TransistorOutput <strong>Unit</strong>CJ1W-OD211 1 CIO 0001 --- Basic I/O <strong>Unit</strong>4 Controller Link <strong>Unit</strong> CJ1W-CLK21 25 CIO 1550 toCIO 1574--- Built-in EtherNet/IPport on <strong>CPU</strong> <strong>Unit</strong> *1<strong>CJ2</strong>H-<strong>CPU</strong>68-E1P25 CIO 1500 toCIO 15242 <strong>CPU</strong> Bus <strong>Unit</strong>0 <strong>CPU</strong> <strong>Unit</strong> (The portis treated as a <strong>CPU</strong>Bus <strong>Unit</strong>.)*1 With the <strong>CJ2</strong>H-<strong>CPU</strong>6@-EIP and <strong>CJ2</strong>M-<strong>CPU</strong>3@, words are allocated to the built-in EtherNet/IP port as a <strong>CPU</strong> Bus <strong>Unit</strong>.These words are used to store the network communications status of the port. In the same way as with other <strong>CPU</strong> Bus<strong>Unit</strong>s, the words are allocated according to the unit number set with the rotary switches on the front of the <strong>CJ2</strong>H-<strong>CPU</strong>6@-EIP or <strong>CJ2</strong>M-<strong>CPU</strong>3@.8-8 <strong>CJ2</strong> <strong>CPU</strong> <strong>Unit</strong> <strong>Software</strong> User’s <strong>Manual</strong>

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