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Allocated DM Area Words Section 3-3
3-3 Allocated DM Area Words
Data is stored at the offset positions shown in the figure below starting from
the first word allocated to the Unit in the DM Area.
The first word can be calculated as follows from the unit number setting:
First word m = D30000 + (25 x unit number)
3-3-1 Communications Cycle Time Setup Table
This table sets the communications cycle time for the master.
The standard communications cycle time can be updated with these switches.
Word Bit 15 Bit 00 Direction
Outputs
CPU Unit → DeviceNet Unit
I/O
CPU Unit ↔ DeviceNet Unit
Inputs
CPU Unit ← DeviceNet Unit
Communications Cycle Time Setup Table
Master User Allocations Setup Table (7 words)
Slave User Allocations Setup Table (7 words)
Communications Cycle Time Reference Table (4 words)
Master User-set Allocations Reference Table (12 words)
Slave User-set Allocations Reference Table (12 words)
Slave Detailed Status Table (32 words)
Reserved by system
m+1
to
m+7
m+8
to
m+14
m+15
to
m+18
m+19
to
m+30
m+31
to
m+42
m+43
to
m+74
m+75
to
m+99
m
Temporary Setting
Switch for Com-
munications Cycle
Time
Word n, bit 12
Returns to the previous set-
ting when the power is turned
OFF or the Unit is restarted.
Communications
Cycle Time Refer-
ence Table Clear
Switch
Word n, bit 13
Also effective the next time
the Unit is started, because
the set value is stored in non-
volatile memory.