Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG Communication interfaces
5
5-4
Onboard interfaces
5.3.2 PGU connection (PORT # 0) (RS-232) as communication interface
When commissioning / programming are complete, the port can be used for other
purposes.
Option 1: Congurationwithdesiredprotocol
(S-BusPGUconguration)
Option 2: Assignment(SASI)intheuserprogram
(theportmustnotbeconguredasanS-BusPGUport)
■ Ifanotherprogrammingdeviceisconnectedduringoperation
instead of the peripheral device, the unit will switch over
automaticallytoPGUmode(pin6logical"1"(DSR);inPGU
mode:DSRPING=“1”).
■ Beforeusingtheporttoconnectanotherperipheraldevice,Port
0mustbereconguredbymeansofanSASIinstruction.
2
1
4
3
6
5
8
7
9
GND SGN
TX
RX
RTS
1)
CTS
1)
CTS
RTS
TXD
RXD
DCD PGD
PGU-Plug
D-SUB 9 pol.
(female)
PeripheralCable
+5V
(
just for PGU)
1)
When communicating with terminals, check whether some connections are
equipped with bridges or need to be set with the "SOCL" command to "1" or "0". It
isgenerallyrecommendedtouseahandshake(RTS / CTS).