Chapter 7: Computer Link Function

(2)Message transfer

In the message transfer operation, the JW-50FL sends data non-cyclically.

Normally, when a request to send occurs, the FL-net will communicate with a certain node.

Transfer message from node 1 to 3

Transfer message from node 6 to 4

1

2

3

4

5

6

Example of a message transfer

[4] Transfer data volume

(1) Cyclic transfer

7In a cyclic transfer, the FL-net has an 8 K bits + 8 K words = 8.5 K word transfer area.

The maximum amount of data that can be transferred cyclically at one time by one node is 8.5 K words.

One word = 2 bytes.

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20

Area 1

8 K bit

Common memory area

Area 2

8 K word

Cyclic transfer data limit

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