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Master Remote I/O Communications Section 4-1
Fixed Allocations
Any one of the three areas below can be specified as the words allocated in
the CIO Area for fixed allocations. The output (OUT) block and the input (IN)
block are allocated strictly in order of node addresses in one of the areas
shown below.
Words are allocated to slaves starting from address 0 in the output (OUT) and
IN blocks. Each address is allocated at least one byte (rightmost).
• More than one word is allocated for each slave (according to its node
address) with more than16 I/O points.
• The rightmost byte of the word is allocated to each slave that has less
than 16 I/O points.
User-set Allocations
The following methods are used for user-set allocations:
• Using a Master User Allocations Table (allocated DM Area words)
• Using the Configurator
Using the Master User
Allocations Table
In the Master User Allocations Table, set the areas and first words for the out-
put block (OUT 1) and the input block (IN 1) and set the area and first word for
the Allocation Size Setup Table. In the Allocation Size Setup Table, set the
allocation sizes for the slave input and output blocks. Each slave can be allo-
cated two blocks, OUT 1 and IN 1, according to the settings in these tables.
Select one.
CS/CJ Series
IN
block 1
OUT
block 2
IN
block 2
OUT
block 3
IN
block 3
Address 0
To Slaves
From Slaves
OUT
block 1
Address 1
Address 62
Address 63
Address 0
Address 1
Address 62
Address 63
Address 0
Address 1
Address 62
Address 63
Address 0
Address 1
Address 62
Address 63
Address 0
Address 1
Address 62
Address 63
Address 0
Address 1
Address 62
Address 63
To Slaves
From Slaves
To Slaves
From Slaves
CIO 3200
CIO 3201
CIO 3262
CIO 3263
CIO 3300
CIO 3301
CIO 0362
CIO 0363
CIO 3400
CIO 3401
CIO 3462
CIO 3463
CIO 3500
CIO 3501
CIO 3562
CIO 3563
CIO 3600
CIO 3601
CIO 3662
CIO 3663
CIO 3700
CIO 3701
CIO 3762
CIO 3763