Technical FAQs

Ask a Question

What is the value of Polarization resistor and where it connected in case of ATV71 Modbus communication.

Polarization resistor is to be there for serial bus and it is to be added to Master side not slave side. ATV71 is always slave on serial bus. 
However, value of bus polarization resistor is 450 Ohm to 650 Ohm at 5V side and 450 to 650 Ohm resistor at the common . 
Refer to the schematic to understand the connection. 
Was this helpful?
What can we do to improve the information ?