Omron CS1W-FLN22 Operation Manual page 235

FL-net Network Control
Item
Minimum allowable frame interval
Vendor code
Manufacturer model
Node name (equipment name)
Protocol version
FA link status
Local node status
Note For details on FL-net Unit restrictions, refer to Precautions under 3-1 Before Operation.
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.
Item
Node number
Upper layer status
Common Memory Area 1 data first word
Common Memory Area 1 data size
Common Memory Area 2 data first word
Common Memory Area 2 data size
Minimum allowable refresh cycle time
Token monitoring time
Minimum allowable frame interval
Link status
Note (1) "0x1fff" refers to hexadecimal 1FFF.
(2) This information is included in the received token frame.
Bytes
Unit: 100 µs
1 byte
10 bytes Vendor code
10 bytes Manufacturer model, device name
10 bytes User-defined node name
1 byte 0x80 (fixed)
1 byte Participating, not participating, etc.
1 byte Duplicate node number detection, etc.
Bytes
1 byte 1 to 254
2 bytes RUN/STOP /ALARM/WARNING/NORMAL
2 bytes Word address (0 to 0x1ff)
2 bytes Size (0 to 0x1ff)
2 bytes Word address (0 to 0x1fff)
2 bytes Size (0 to 0x1fff)
2 bytes Unit: 1 ms
1 byte Unit: 1 ms
Unit: 100 µs
1 byte
1 byte Participating, not participating, etc.
Contents (data range)
Contents (data range)
Appendix D
209