Setting Up The Talker And Listener Areas - Toshiba V Series User Manual

Chapter 7 I/O Module Input/Output

7.2 Setting up the Talker and Listener Areas

The FL654's talker and listener areas are provided in Area 1 or Area 2 of the FL-net cyclic
transmission common memory. Setup of the talker and listener areas is achieved using the
talker block head/listener block head setting switches at the lower left side face of the
module.
(1) Dividing the common memory area into blocks
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To simplify the FL654 switch settings, the head addresses of the talker and listener
areas are set as follows:
(a) For common memory Area 1
The head addresses are set using block numbers of blocks divided in 2
words.
(b) For common memory Area 2
The head addresses are set using block numbers of blocks divided in 32
words.
FL-net cyclic common
memory
Area 1
512 words
Area 2
8k words
Common memory
Area 2 addresses
(Word addresses)
Figure 7-2 Dividing the Common Memory Area into Blocks
Block 0
2 words
Block 1
2 words
Block FFh
2 words
0h
Block 0
32 words
20h
Block 1
32 words
1FE0h
Block FFh
32 words
Model 2000 FL-net (OPCN-2) Remote I/O Station Module (FL654) User's Manual
Common memory
Area 1 addresses
(Word addresses)
0h
2h
1FEh