Hardware Manual

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

Saia-Burgess Controls AG

PCD2.W3x5

Input/output (I/O) modules

5

The following connection diagram shows a typical wiring layout for:

● Voltage inputs with the PCD2.W305 and .W325 modules or

● Current inputs for the PCD2.W315 module

● If shielded cables are used, the shield should be continued to an external earthing

bar.

m

ax

.^2

0 c

m

COME6COME5COME4COME3COME2COME1COME0

1312 11 10 9 8 7 6 5 4 3 2 1 0

Earthing bar

Block diagram

Input filter

E 0

COM

E 1

COM

E 2

COM

E 3

COM

E 4

COM

E 5

COM

E 6

COM

M

u

lti

p

le

x

er

A

D

C

Reference

Voltage 2. 5 V

μController

PCD Bus

I/O Bus

DC / DC

Converter

Galvanically

separate

interface

Electrically isolation

VCC

COM

+5 VGND