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SECTION 3
Allocated CIO and DM Words
This section describes the words allocated to the DeviceNet Unit in the CIO Area and DM Area. These words both enable
controlling the DeviceNet Unit and accessing Unit and network status.
3-1 Overview of Word Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3-1-1 Allocated CIO Area Words. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
3-1-2 Allocated DM Area Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
3-2 Allocated CIO Area Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3-2-1 Software Switches 1 (Word n) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3-2-2 Software Switches 2 (Word n+1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
3-2-3 Master COS Send Switches (Words n+2 to n+5) . . . . . . . . . . . . . . . 69
3-2-4 Disconnect/Connect Switches (Words n+6 to n+9) . . . . . . . . . . . . . 69
3-2-5 Unit Status 1 (Word n+10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3-2-6 Unit Status 2 (Word n+11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
3-2-7 Master Status 1 (Word n+12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
3-2-8 Master Status 2 (Word n+13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3-2-9 Slave Status 1 (Word n+14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
3-2-10 Slave Status 2 (Word n+15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
3-2-11 Registered Slave Table (Words n+16 to n+19). . . . . . . . . . . . . . . . . 78
3-2-12 Normal Slave Table (Words n+20 to n+23) . . . . . . . . . . . . . . . . . . . 79
3-2-13 C200H Master Replacement Master Status 1 (Word n+24). . . . . . . 79
3-3 Allocated DM Area Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
3-3-1 Communications Cycle Time Setup Table . . . . . . . . . . . . . . . . . . . . 81
3-3-2 Master User Allocations Setup Table . . . . . . . . . . . . . . . . . . . . . . . . 82
3-3-3 Allocation Size Setup Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
3-3-4 Slave User Allocations Setup Table . . . . . . . . . . . . . . . . . . . . . . . . . 85
3-3-5 Communications Cycle Time Reference Table . . . . . . . . . . . . . . . . 87
3-3-6 Master User-set Allocations Reference Table . . . . . . . . . . . . . . . . . 87
3-3-7 Slave User-set Allocations Reference Table. . . . . . . . . . . . . . . . . . . 88
3-3-8 Slave Detailed Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89