Hardware Manual

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

Saia-Burgess Controls AG

PCD2.W10x

Input/output (I/O) modules

5

Wiring for negative unipolar analogue inputs

+E

• E

(PGND)

PCD 2 .W 105 : 100 Ohm / 0. 1 %

All unused inputs must be earthed.

Output circuits and terminal designation

ANALOGUE INPUTS

I/O

Bu

s

DATA

READ

WRITE

PC

D^

Bu

s

+ 5 V

GND

+ 24 V

DATA

CHANNEL SELECTION

START CONVERSION

A

D 12 BITS

BUSY FLAG

Bipolar

Offset

UNIPOLAR

MUX GAIN BIPOLAR

Input

Offset

+-EE (^00) GAIN = 1 ... 5 (SET/RES O 2 )
+E 1

• E 1

+E 2

• E 2
  +E 3


• E 3

0 1 2 3 4 5 6 7 8 9

V+ + 15 V

• 15 V

DCDC

Shunt for Current version

Programming

Classic: Programming examples for the PCD2.W10x can be found in a separate

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

xx7: the firmware reads in 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.