SBC PCD2.M5 Series - With PCD7.F150, Port #1 & Port#2

Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG Communication interfaces
5
5-13
Serial interfaces - Slots A1 and A2
5.4.4 RS-485withPCD7.F150,Port #1 & Port#2
PCD7.F150:
Connection for RS-485 with electrical isolation
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
connected/disconnected with a jumper.
10
11
12
13
14
15
16
17
18
19
J1
OPEN
CLOSED
PCD7.F150
11, (1) RX - TX
12, (2) /RX - /TX
RX - TX
/RX - /TX
Bus RS 485
D
/D
SBUS
PGND PGND
PGND
50 VDC
50 VDC
0
1
2
3
4
5
6
7
8
9
J1
OPEN
CLOSED
PCD7.F150
PGND PGND
PGND
50 VDC
50 VDC
Socket A1
Socket A2
x3, Port2x4, Port1
SGND (galv. sep.)
has to be connected with
the shield of the cable
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