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PROFIBUS DEVICE DATA
6
6.2 Slave user parameter
By changing the slave user parameter value, you can use the byte swapping function (byte inversion
function).
Setting "1" at Address 1H (Bit 0) makes the byte swapping function valid.
Since "-" is an unused bit, set "0".
Address Functions
0H For manufacturer setting (Always set "1".)
1H
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
⎯⎯⎯⎯⎯⎯⎯
0:Byte swapping invalid
1:Byte swapping valid
Example
WORD WORD
Master slave
Command request
WORD WORD
Master slave
Command response
WORD WORD
Master slave
Command request
WORD WORD
Master slave
Command response
02H
02H 01H 04H
05H 06H 07H 08H
06H 05H 08H 07H
(When address 1H (Bit0)=0)
(When address 1
H (Bit0)=1)
Byte swapping invalid
Byte swapping valid
The data is byte swapped in the slave to be a receiving/sending data.
01H 03H 04H
03H