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
4-19
Serial interfaces on socket A
4.6.5 RS-485 with PCD7.F150, Port #1 (without PCD1.M110)
PCD7.F150:
RS-485 electrically isolated, with line
termination resistors capable of activation, for
socket A
The electrical isolation is achieved with 3
optocouplers and a DC / DC transducer.
The data signals are protected against
surges by a suppressor diode (10 V). The
line termination resistors can be connect-
ed / disconnected with a jumper.
Connections
10
11
12
13
14
15
16
17
18
19
J1
OPEN
CLOSED
PCD7.F150
PGND
SGND
Port1 (X4)
RX - TX
/RX - /TX
D
/D
RS-485 Bus
50 VDC
S-Bus
SGND (electrically isolated,
must be connected to the
cables shield).
Supply (Terminal 22/23)
Socket A
Block diagram:
TXD
RXD
RTS
75176
OPTO-0601
SGND
+5VE
330 Ohm
150 Ohm
330 Ohm
D
/D
+5V
PGND
SGND
+5VE
EN
SGND
Transmit
Receive
RS-485
Driver
DC
DC
Not all manufacturers use the same connection conguration, so the data lines may
need to be crossed.
The potential difference between PGND and the data lines Rx-Tx, Rx- / Tx
(and SGND) is limited to 50 V by a suppressor capacitor.
For installation details, see manual 26 / 740 :
“Installation components for RS-485 networks”.

SBC PCD1 Series Specifications

General

Brand	SBC
Model	PCD1 Series
Category	Controller
Language	English