SBC PCD1 Series User Manual

Saia-Burgess Controls AG
Manual Manual PCD 1 / PCD 2 Series │ Document 26 / 737 EN22 │ 2013-11-26
4
Communication interfaces
4-10
Onboard interfaces
4.5.5 RS-485 communiaction interface PORT # 6, only on PCD2.M480
On the PCD2.M480, on Port #6, is a built-in RS-485 interface.
29
27
26
25
24
23
22
21
20
D
/D
WD
WD
PCD2.M480
RX - TX
/RX - /TX
28
RS-485
Bus-cable
Screw terminal block
O
C
Choice of the termination resistors
PCD2.M480
Port #6
PCD1.M1xx
PCD2.Mxx0
PCD1.M1xx
PCD2.Mxx0
PCD1.M1xx
PCD2.Mxx0
/RX - /TX
n n
n
/n
/n/n
RX - TX
+5 V
29
28
+5 V
Pull up
330 Ohm
Termination
Resistor
150 Ohm
Segment length max. 1200 m
max. 32 stations
Bus RS-485
First station Middle stations End station
Pull down
330 Ohm
At the rst and last stations, the jumper must be set to the “C“ (closed) position.
At all other stations, the jumper must be set to “O” (open) position (factory setting).

SBC PCD1 Series Specifications

General

Brand	SBC
Model	PCD1 Series
Category	Controller
Language	English