
20
Cyclic Transmission
Section 2-2
Participating Node
Management Table
The participating node management table manages information on the nodes
in the network.
Note
“0x0012ab” refers to hexadecimal 0012AB.
Network Management
Table
The network management table manages information that is shared by all
nodes on the network.
2-2
Cyclic Transmission
Cyclic transmission is used to transmit cyclic data. The data is shared by each
node through the Common Memory (shared memory) function.
Note
Cyclic transmission allows PLCs made by OMRON to communicate with
PLCs made by other companies.
Item
Bytes
Contents (data range)
Node number
1 byte
1 to 254
Upper layer status
2 bytes
RUN/STOP /ALARM/WARNING/NOR-
MAL
Common Memory Area 1 data first word
2 bytes
Word address (0 to 0x1ff)
Common Memory Area 1 data size
2 bytes
Size (0 to 0x200)
Common Memory Area 2 data first word
2 bytes
Word address (0 to 0x1fff)
Common Memory Area 2 data size
2 bytes
Size (0 to 0x2000)
Minimum allowable refresh cycle time
2 bytes
Unit: 1 ms
Token monitoring time
1 byte
Unit: 1 ms
Minimum allowable frame interval
1 byte
Unit: 100 ms
Link status
1 byte
Participating, not participating, etc.
Item
Bytes
Contents (data range)
Token holding node number
1 byte
Node currently holding the token
Minimum allowable frame interval
1 byte
Unit: 100
µ
s
Allowable refresh cycle time
2 bytes
Unit: 1 ms
Refresh cycle measurement value
(current)
2 bytes
Unit: 1 ms
Refresh cycle measurement value
(maximum)
2 bytes
Unit: 1 ms
Refresh cycle measurement value
(minimum)
2 bytes
Unit: 1 ms
Token
Data
Node 1
Node 2
Node 3
Node...
Node n
Node 1
Node n
Node 2
Node 3
Node...
Node 4
FL-net
Common
Memory
Node 1
Node n
Node 2
Node 3
Node...
Node 4
Node 1
Node n
Node 2
Node 3
Node...
Node 4
Node 1
Node n
Node 2
Node 3
Node 4
Node 1
Node n
Node 2
Node 3
Node...
Node 4
Node...
Summary of Contents for CJ1W-FLN22
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Page 18: ...xviii...
Page 26: ...xxvi Unit Versions of CS CJ series FL net Units 7...
Page 40: ...Precautions Section 1 6 14...
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Page 88: ...Allocated Words in the DM Area Section 4 4 62...
Page 158: ...Command Response Reference Section 7 5 132...
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Page 192: ...Inspections Section 10 6 166...
Page 218: ...192 System Configuration Appendix A...
Page 224: ...198 System Configuration Example Appendix B...
Page 270: ...244 FL net Unit Support Software Ver 1 6 Appendix F...
Page 276: ...250 International System of Units Appendix G...