ABB TRIO-20.0-TL-OUTD

Multiple Inverters
Connect all the units of the RS485 chain in accordance with the “daisy chain” arrangement (“in-out”) observing the correspondence
between signals, and activate the termination resistance of the communication line in the last element of the chain by switching
switch a12 or a13 (to ON position) being careful to switch the switch of the serial line used (PC or PMU).
The above details are also mentioned in the Installation & Operation Manual for ABB Inverters