Hardware Manual

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

Saia-Burgess Controls AG

PCD2.W4x0

Input/output (I/O) modules

5

Block diagram

D A

D A

D A

D A

2

3

V

C

9 8 7 6 5 4 3 2 1 0

A3 A2 A1 A0

V

C

0

1

I/O Bus

PCD Bus Reference

Voltage

DATA

WRITE

ADDR

JUMPER J2

24 VDC

VOLTAGE

CONTROLLED

CURRENT

SOURCE

Programming

Classic: Programming examples for the PCD2.W4x0 can be found in a separate

manual and on the TCS Support site (www.sbc-support.ch + getting

started).

xx7: the firmware writes the values according to the configuration (I/O Builder)

Watchdog: This module cannot be used on the base address 240 (or 496 for the

PCD2.M17x), because it would interact with the watchdog, and would cause a

malfunction.

For details, please refer to the “Watchdog” section, which describes the correct use of

the watchdog in conjunction with PCD2 components.