SBC PCD1.Room - PCD7.F150 S Serial Interface Module RS-485

Hardware Manual PCD1.M2110R1 │ Document 27-619 │ Version ENG 04 │ 2018-08-20
Saia-Burgess Controls AG Communications Interfaces
6
6-9
On-board│Port#1│SlotA/RS-485withElectricalIsolation
6.1.4.3 PCD7.F150SSerialInterfaceModuleRS-485
with Electrical Isolation
Electrical isolation is achieved with three optocouplers and a DC/DC converter.
Data signals are protected against overvoltage with an anti-surge diode (10 V).
Termination resistors can be connected (CLOSED) or disconnected (OPEN) with a
jumper.
PCD7.F150S RS-485termination
Gate
1 2
ON
C O
Close, terminated,
closed
Gate
1 2
ON
C O
Open,
not terminated, open
(factory setting)
Cabling:
RS-485
Bus cable
PCD1.M2_
Terminal Block
X2
peripheral
Strands twisted and shielded
RX - TX
/RX - /TX
PGND
RX - TX
/RX - /TX
PGND
PGND
SGND
20
21
22
23
24
25
26
27
28
29
With the use of this module, the permissible ambient temperature is reduced by
5°C.
For more details see in the Manual 26-740, Installation components for RS-485
Networks.