FC-20 RS-485 bus terminals - EasyIO - LIT-12014270 - EASYIO-FC-20 - EasyIO FC-20 Controller

FC-20 Quick Start Guide

Brand
EasyIO
Product name
EasyIO FC-20 Controller
Document type
Quick Start Guide
Document number
LIT-12014270
Document revision
1.0
Revision date
2024-02-14
Product status
Active
Language
English

Wire the RS-485 terminals in a daisy-chain configuration. Use a stranded three-wire twisted and shielded cable as shown in Figure 1. The three different wires are the positive bus, the negative bus, and the COM.

Figure 1. RS-485 wiring
Callout Description
1 Terminal on the first device
2 Terminal on the daisy-chained device
3 Connection to another device on the RS-485 bus
4 Cable shield connection. Do not ground the cable shield.
5 Connection from another device on the RS-485 bus