Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 12│2014-07-24
Saia-Burgess Controls AG Communication interfaces
5
5-3
Onboard interfaces
5.3 Onboard interfaces
5.3.1 PGU connector (PORT # 0) (RS-232)forconnectingprogrammingdevices
ThePGUinterface(Port # 0)isconnectedtoa9-poleD-Subconnector(female).The
interface is used to connect the programming device when the unit is commissioned.
The interface is of type RS-232c.
Thepincongurationandassociatedsignalsare:
Pin Designation Meaning
1 DCD Data carrier detected A device is signalling to the computer that it
has detected data on the line
2 RXD Receive data Line for reception of data
3 TXD Transmit data Lineforoutgoing(sent)data
4 DTR Data Terminal Ready Data Terminal Ready
5 SGN Signal ground Signal ground. The signal voltages are
measured against this line
6 DSR PGU connected PGU detection. A connected device is
signalling to the computer that is it ready for
use when there is a logical "1" on this line
7 RTS Request to send When this line is set to a logical "1", the
device is ready to send data
8 CTS Clear to send When this line is set to a logical "1", the
device can receive data
9 +5 V
The PGU protocol is provided for operation with a programming device. The use of
thePCD8.P800serviceunitissupportedfromrmwareversion$301forallPCD2
controllers.
PCD8.K111 connecting cable
(P8andS-Busprotocol,suitableforallPCD2units)
SGN
DSR
SGN
TX
RX
RTS
CTS CTS
RTS
TX
RX
2
1
4
3
6
5
8
7
D-SUB 9 pol.
(female)
D-SUB 9 pol.
(male)
9
2
1
4
3
6
5
8
7
9
DTR
PC PCD
DCD DCD