SBC PCD1.M2220-C15 - RS-485 (Port#0+1) Electrically Isolated (Terminal Block X1)

Hardware manual PCD1.M2220-C15 │ Document 27-640 – Version ENG03 │ 2020-03-25
Saia-Burgess Controls AG Communication interfaces
5
5-4
On-board | RS-485 (Port #0+1)
5.2.3 RS-485 (port#0+1) electrically isolated (terminal block X1)
Up to two RS-485 connections can be used without additional hardware.
Communication mode S-Bus and Modbus can be realised via Port0 and/or Port1
on terminal block X1.
Terminal block X1
Termination
0 1
O
C
X1
DB- /DA+ S
Port0
DB- /DA+ S
Port1
C0 1 Et0 1
DI0 1 2 3
AI0 1 WD
PCD1.M2220-C15
/RX - /TX
RX - TX
SGND
Open
Close
RS-485
Bus-cable
X1
/DA+DB-
S
/DA+DB-
S
Port 0 Port 1
RS-485 connections and terminating resistor switches (termination) for Port0 and Port1
LEDs Port0 and Port1