Hi,

I want to communicate Trio MC4N_ECAT with Arduino via RS485.

I sent a data by  following command:"MODBUS( 3, -1, VR(20),$2,1,1,1,205)".

but, I got improper data in Arduino Like this "FDFBFFFDFFFD2F3D".

I expected that the data must be similar to this: "1211CRC16".

what's wrong?

please help me.