SBC PCD1 Series - Page 189

Saia-Burgess Controls AG
Manual Manual PCD 1 / PCD 2 Series │ Document 26 / 737 EN22 │ 2013-11-26
5
Input/output (I/O) modules
5-53
Analogue input modules
Wiring for negative unipolar analogue inputs
+E
-E
(PGND)
PCD2.W105 : 100 Ohm / 0.1%
All unused inputs must be earthed.
Output circuits and terminal designation
ANALOGUE INPUTS
I/O Bus
DATA
READ
WRITE
PCD Bus
+5 V
GND
+24 V
DATA
CHANNEL SELECTION
START CONVERSION
A
D
12 BITS
BUSY FLAG
Bipolar
Offset
UNIPOLAR
BIPOLAR
GAIN
MUX
Input
Offset
GAIN = 1...5
(SET/RES O2)
+E0
-E0
+E1
-E1
+E2
-E2
+E3
-E3
0
1
2
3
4
5
6
7
8
9
V+
+15 V
-15 V
DC
DC
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.com + getting started).
xx7: the rmware reads in the values according to the conguration (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.