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Chapter 15: Appendix
[3] Node status control
The status control of nodes consists of a local node management table, a participating nodes manage-
ment table, and a network management table. An outline of each is shown below.
Outline of each table used for node status control
Local node management table
Participating nodes management table Control information about nodes participating the network.
Network management table
[4] FL-net Local node management table
(1) Basic function
Control data relating to this node. An outline is shown below.
Used for reading participating request frames and network parameters.
The control data are set by the FL-net upper layer when this node starts.
The node name, top address and size of the data send area in the common memory can be set
through the network.
(2) Control data
Individual node management table
Node number
Area 1 of common memory: Data top address
Area 1 of common memory: Data size
Area 2 of common memory: Data top address
Area 2 of common memory: Data size
Upper layer status
Token monitor time
Minimum separation of frames
Vendor name
Manufacturer name
Node name (facility name)
Protocol version
FA link status
Local node's status
15
Name
Control its own node settings.
Control information shared throughout the network.
Item
15-26
Details
Number
Description
of bytes
1 byte 1 to 254
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 RUN/STOP/ALARM/WARNING/NORMAL
1 byte In units of 1 msec.
1 byte In units of 100 µsec.
10 bytes Vender name
10 bytes Manufacture model name, device name
10 bytes Node name by user entry
1 byte Fixed to 0x80
1 byte Participate/leave
1 byte Doubled node number detection, etc.
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