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209
FL-net Network Control
Appendix D
Note
For details on FL-net Unit restrictions, refer to
under
Participating Node Management Table
Basic Functions
The status of the nodes in the network is monitored using the participating node management table maintained
by each node. Management data is managed for each node that has joined the network. A summary of the
functions is provided below.
1.
When a node is started, a token frame is received, and the participating node management table and net-
work management table are updated.
2.
For each token frame received, the node’s participating node management table is updated.
3.
When a participation request frame is received for a new node, the participating node management table is
updated.
4.
A node will be deleted from the table if the node does not receive a token frame or has consecutively timed
out three times.
Management Data
The token for each node is constantly monitored and the participating node management table is created and
managed, as shown in the following table.
Note
(1) “0x1fff” refers to hexadecimal 1FFF.
(2) This information is included in the received token frame.
Minimum allowable frame interval
1 byte
Unit: 100
µ
s
Vendor code
10 bytes
Vendor code
Manufacturer model
10 bytes
Manufacturer model, device name
Node name (equipment name)
10 bytes
User-defined node name
Protocol version
1 byte
0x80 (fixed)
FA link status
1 byte
Participating, not participating, etc.
Local node status
1 byte
Duplicate node number detection, etc.
Item
Bytes
Contents (data range)
Node number
1 byte
1 to 254
Upper layer status
2 bytes
RUN/STOP /ALARM/WARNING/NORMAL
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 0x1ff)
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 0x1fff)
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
µ
s
Link status
1 byte
Participating, not participating, etc.
Item
Bytes
Contents (data range)
Summary of Contents for CJ1W-FLN22
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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...