Table of Contents
Advertisement
FX2N-32DP-IF Profibus-DP Interface Unit
7.2.2
Exchanged Data Process by Simple Communication Interface
The Simple Communication Interface is a method to exchange data from the master to the
32DP-IF by the default user parameter. There are 3 word, 6 word, 9 word, 12 word and 15
word interface.
The Simple Communication Interface basically uses the Default Parameter one or more times
(Refer to the table below and Figure 7.4).
Table 7.11: Repeatedly a Frequency and Exchange Data Length
3 word Interface (3W-IF)
6 word Interface (6W-IF)
9 word Interface (9W-IF)
12 word Interface (12W-IF)
15 word Interface (15W-IF)
Figure 7.4: Simple Communication 6W-IF Case
Master
Output Data
R
BFM #
W
Data
W
BFM #
R
BFM #
W
Data
W
BFM #
Input Data
A
Data
Value
R
P
Value
R
P
A
Data
R
Value
P
R
Value
P
R
: BFM's number for reading from special function unit/block
W
: BFM's number or data value for writing to special function unit/block
A
: BFM's value read from special function unit/block
R
: BFM's number or data value written to special function unit/block
P
Items
Use Frequency
1
2
3
4
5
32DP-IF
Input Data
R
BFM #
W
Data
1st
W
BFM #
R
BFM #
W
Data
2nd
W
BFM #
Output Data
A
Data
Value
R
P
Value
R
P
A
Data
R
Value
P
R
Value
P
User Parameter 7
Exchange Data Length
Input Data
Output Data
(Bytes)
(Bytes)
6
12
18
24
30
Special Function
Unit/Block
Buffer Memory
1st
2nd
7-12
6
12
18
24
30
Advertisement
Table of Contents
