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8-1
Chapter 8: Cyclic Transfer
8
Chapter 8: Cyclic Transfer
Common
memory area
Area 1 8K bits (8192 bits = 1024 bytes)
8.5K words
Area 2 8K words (8192 words = 16384 bytes)
Set item
Reference number
of the figure above
Parameter
address(8)
Area 1
Top address and file number on a PC
1
20 to 22
Top address of sending area (this node)
2
10 to 11
Sending data length (this node)
3
12 to 13
Area 2
Top address and file number on a PC
4
24 to 26
Top address of sending area (this node)
5
14 to 15
Sending data length (this node)
6
16 to 17
Token Data
Node
1
Own
node
(node f)
Node
n
Node f
Node n
Area 1
Area 2
Common
memory
area
f = 1 to n (n:1 to 249)
Node 1
Node f
Node n
Node 1
Node f
Node n
Node 1
Node f
Node n
Node 1
Node f
Node n
Node 1
Node f
Node n
Node 1
2
5
6
4
3
1
To execute a cyclic transfer using the FL-net module (JW-20FL5/20FLT and JW-50FL) and FL-net
board (Z-336J), the parameters in the common memory areas (area 1 and 2) must be set.
Capacity
- Nodes used to execute a cyclic transfer must have 8.5 K words of memory available for the
common memory area.
- Areas that can be allocated as the common memory area Page 8-4 to 8-6.
- Notes on the common memory areas Next page.
Parameter items to set
- Set the parameters for use by the module in controlling any module (CPU board) installed in
this module. See "Chapter 12: Parameters."