SBC PCD2.M5 Series - Plug-In Interface Modules - Slots A1 and A2

Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG Communication interfaces
5
5-8
Serial interfaces - Slots A1 and A2
5.4 Plug-ininterfacemodules-SlotsA1andA2
5.4.1 RS-485 / 422withPCD7.F110,Port #1 & Port#2
Connection for RS-485
PCD7.F110:
RS-422 with RTS/CTS or RS-485 electrically
connected, with line termination resistors
capable of activation, for Slots A1, A2.
10
11
12
13
14
15
16
17
18
19
10,(0) PGND
11,(1) RX - TX
12,(2) /RX - /TX
PGND
RX - TX
/RX - /TX
GND
0
1
2
3
4
5
6
7
8
9
J1
OPEN
CLOSED
PCD7.F110
Bus RS 485
Bus RS 485
J1
OPEN
CLOSED
PCD7.F110
x3, Port2x4, Port1
Socket A1
other terminals not used
Bus-Cable
Screw terminal blocks
sockets A1 and A2
Socket A2
Choice of termination resistors
+5 V
/RX - /TX
n n
11 n
/n
/n /n
12
RX - TX
+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
Notallmanufacturersusethesameconnectionconguration,sothedatalinesmay
need to be crossed