Overview of Word Allocations

Section 3-1

3-1-1 Allocated CIO Area Words

Software switches, DeviceNet Unit status, and error data are allocated in the CIO Area according to the unit number, as shown below. Software switches are bits used as commands from the CPU Unit to the DeviceNet Unit to enable executing Unit functions.

Unit number

Allocated words

 

Unit number

Allocated words

 

 

 

 

 

0

CIO 1500 to CIO 1524

 

8

CIO 1700 to CIO 1724

 

 

 

 

 

1

CIO 1525 to CIO 1549

 

9

CIO 1725 to CIO 1749

 

 

 

 

 

2

CIO 1550 to CIO 1574

 

10

CIO 1750 to CIO 1774

 

 

 

 

 

3

CIO 1575 to CIO 1599

 

11

CIO 1775 to CIO 1799

 

 

 

 

 

4

CIO 1600 to CIO 1624

 

12

CIO 1800 to CIO 1824

 

 

 

 

 

5

CIO 1625 to CIO 1649

 

13

CIO 1825 to CIO 1849

 

 

 

 

 

6

CIO 1650 to CIO 1674

 

14

CIO 1850 to CIO 1874

 

 

 

 

 

7

CIO 1675 to CIO 1699

 

15

CIO 1875 to CIO 1899

 

 

 

 

 

3-1-2 Allocated DM Area Words

The User Allocations Setup Tables and individual slave status by node address are allocated in the DM area.

Unit number

Allocated words

 

Unit number

Allocated words

 

 

 

 

 

0

D30000 to D30099

 

8

D30800 to D30899

 

 

 

 

 

1

D30100 to D30199

 

9

D30900 to D30999

 

 

 

 

 

2

D30200 to D30299

 

10

D31000 to D31099

 

 

 

 

 

3

D30300 to D30399

 

11

D31100 to D31199

 

 

 

 

 

4

D30400 to D30499

 

12

D31200 to D31299

 

 

 

 

 

5

D30500 to D30599

 

13

D31300 to D31399

 

 

 

 

 

6

D30600 to D30699

 

14

D31400 to D31499

 

 

 

 

 

7

D30700 to D30799

 

15

D31500 to D31599

 

 

 

 

 

59

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Omron CS1W-DRM21, CJ1W-DRM21 operation manual Allocated CIO Area Words, Allocated DM Area Words, Unit number Allocated words