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SECTION 4
Memory Allocations
This section describes the words allocated in the CIO Area and the DM Area for EtherNet/IP Units or built-in EtherNet/IP
ports.
4-1 Overview of Memory Allocated to the EtherNet/IP Unit . . . . . . . . . . . . . . . . 68
4-2 CIO Area Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
4-2-1 Overview of the Allocated CIO Area Words . . . . . . . . . . . . . . . . . . 70
4-2-2 Details of the Allocated CIO Area Words . . . . . . . . . . . . . . . . . . . . 71
4-3 DM Area Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
4-3-1 Overview of the Allocated DM Area Words . . . . . . . . . . . . . . . . . . 83
4-3-2 Details of the Allocated DM Area Words. . . . . . . . . . . . . . . . . . . . . 83
4-4 User Settings Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
4-4-1 Overview of the User Settings Area . . . . . . . . . . . . . . . . . . . . . . . . . 85
4-4-2 User Settings Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
4-5 Auxiliary Area Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
4-5-1 Read-only Bits/Words. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
4-5-2 Read/Write Bits (User Settings) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89