FG_F6_MODBUS_EN_01 / 2020-06-17
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Writing of the configuration / extended menu bits
The configuration / extended menu bits are independents of the program number.
•
Standard access
Example of writing 7 words in the “Configuration / Extended menu bits”:
Master
Slave
—
Make a
Write N*words
request of 7 words at the
0100h
address.
On network:
01
10
01
00
00
07
0E
00
4C
20
10
00
80
21
00
00
00
00
00
20
00
B9
32
01
Slave address
10
Function number (Write N*words)
01 00
Word address (Extended menu bits)
00 07
Number of words to write
0E
Number of bytes to write
00 4C
Word 1: write 4C00h
20 10
Word 2: write 1020h
00 80
Word 3: write 8000h
21 00
Word 4: write 0021h
00 00
Word 5: write 0000h
00 00
Word 6: write 0000h
20 00
Word 7: write 0020h
B9 32
CRC
—
Answer to the request:
On network:
01
10
01
00
00
07
80
37
01
Slave address
10
Function number (Write N*words)
01 00
Word address (Extended menu bits)
00 07
Number of written words
80 37
CRC