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FG_F6_MODBUS_EN_01 / 2020-06-17
CYCLE
Standard command cycle
Program selection command on the ATEQ device
This functionality is only available in Standard access.
Always subtract 1 from the value of the program number to be selected.
Example: for selecting program number 2, send the value 1 at the address 0200h.
Example for selecting program number 3:
Master
Slave
—
Make a
Write N*words
request of 1 word at the
address
0200h
.
On network:
01
10
02
00
00
01
02
02
00
84
F0
01
Slave address
10
Function number (Write N*words)
02 00
Word address (Program name)
00 01
Number of words to write
02
Number of bytes to write
02 00
Word 1: write 0002h (program n°3)
81 FD
CRC
—
Answer to the request:
On network:
01
10
02
00
00
01
00
71
01
Slave address
10
Function number (Write N*words)
02 00
Word address (Program name)
00 01
Number of written words
00 71
CRC