Chapter 15: Appendix

[3] Node status control

The status control of nodes consists of a local node management table, a participating nodes management table, and a network management table. An outline of each is shown below.

Outline of each table used for node status control

Name

Details

Local node management table

Control its own node settings.

 

 

Participating nodes management table

Control information about nodes participating the network.

 

 

Network management table

Control information shared throughout the network.

 

 

[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

Item

Number

Description

of bytes

 

 

Node number

1 byte

1 to 254

 

 

 

Area 1 of common memory: Data top address

2 bytes

Word address (0 to 0x1ff)

 

 

 

Area 1 of common memory: Data size

2 bytes

Size (0 to 0x1ff)

 

 

 

Area 2 of common memory: Data top address

2 bytes

Word address (0 to 0x1fff)

 

 

 

Area 2 of common memory: Data size

2 bytes

Size (0 to 0x1fff)

 

 

 

Upper layer status

2 bytes

RUN/STOP/ALARM/WARNING/NORMAL

 

 

 

Token monitor time

1 byte

In units of 1 msec.

 

 

 

Minimum separation of frames

1 byte

In units of 100 µsec.

 

 

 

Vendor name

10 bytes

Vender name

 

 

 

Manufacturer name

10 bytes

Manufacture model name, device name

 

 

 

Node name (facility name)

10 bytes

Node name by user entry

 

 

 

Protocol version

1 byte

Fixed to 0x80

 

 

 

FA link status

1 byte

Participate/leave

 

 

 

Local node's status

1 byte

Doubled node number detection, etc.

 

 

 

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