Modbus implementation

[ShamusVW]

Thank you, I have figured out how the response is made up your assistance.
Any idea on my question i.e.

qDebug() << QString::number(block[9],16);
qDebug() << QString::number(block[10],16);
qDebug() << QString::number(block[11],16);
qDebug() << QString::number(block[12],16);

it prints out

"3d"
"7e"
"ffffffffffffffbf"
"26"

Shaun

[sharad_pise]

Have got any solution to the 0xffffffbf problem?
I am facing the same problem while reading a float data from modbus .
If u have a solution pls tell me.