Hardware Manual

Saia-Burgess Controls AG

Hardware Manual PCD 1 / PCD 2 Series│Document 26 / 737│Edition EN 15│2008-07-22

Communication interfaces

4

Serial interface on Port#0

4.4 Onboard interfaces

4.4.1 PGU connection (PORT # 0, PCD1 and PCD2) (RS 232) for connecting
programming devices

The PGU interface (Port # 0) is connected to a 9-pole D-Sub connector (female). The

interface is used to connect the programming device when the unit is comissioned.

The interface is of type RS 232c.

The pin configuration and associated signals are:

Pin Designation Meaning

1 DCD Data Carrier Detected The equipment signals to the computer that

it recognizes data on the line

2 RXD Receive Data Line for the receiving of data

3 TXD Transmit Data Line for outgoing (sent) data

4 n.c. Not Connected Not used

5 SGN Signal Ground Signal mass. Signal voltages are measured

against this line

6 DSR PGU Connected Recognition PGU. Attached equipment sig-

nals to the computer that it is operational, if

logical unity on this line lies close

7 RTS Request To Send Transmitters switch on. „send request“ (if

this line on logically unity stands, would like

to send the equipment data

8 CTS Clear To Send Ready-to-transmit-state. If this line stands

on logically “high”, the equipment can

receive data

9 +5 V Supply P100 Supply for the programming unit P100

The PGU protocol is provided for operation with a programming device. The use

of the PCD8.P800 service unit is supported from firmware version $301 for all

PCD1 / PCD2 controllers.

PCD8.K111 connecting cable

(P8 and S-Bus protocol, suitable for all PCD1 / PCD2 units)

2

1

4

3

6

5

8

7

9

2

1

4

3

6

5

8

7

9

SGN

DSR

SGN

TX

RX

RTS

CTS CTS

RTS

TX

RX

DTR

PC PCD

D-SUB 9 pol.

(female)

D-SUB 9 pol.

(male)