Yaskawa F7 Modbus - Manual (Page 10)

Connections 1-5
► RS485 2-Wire Networks
RS485 2-wire networks can be either single or multi-drop networks, with each slave device on the network assigned a unique node address. A
maximum of 31 devices may reside on any network segment before a repeater is required. Terminating resistors must be installed on the first
and last devices on each network segment. The maximum segment length is 4000ft (1200m). All RS485 communications are half-duplex
Figure 1.5 – RS485 2–Wire Network Connection