How to read data from different databases on TIA Portal using the Modbus Read node on Node Red

Hello there,

I am new to Node Red and I am trying to read a set of values from two databases in TIA Portal V16, using the Modbus Read node. I am able to read the values only from the first database. The Modbus Read node is not reading values from second database.

I tried changing the Unit ID on the Modbus Read node - it dosen't seem to make any difference. How do I read values from the second database using Modbus Read node? - please help.