SBC PCD1 Series - Page 225

Saia-Burgess Controls AG
Manual Manual PCD 1 / PCD 2 Series │ Document 26 / 737 EN22 │ 2013-11-26
5
Input/output (I/O) modules
5-89
Analogue output modules with electrically isolation
Block diagram
OP-Amp output stage
A0
CO
M
A1
CO
M
A2
CO
M
A3
CO
M
A4
CO
M
A5
CO
M
DAC
Reference
Voltage 2.5 V
μController
PCD Bus
I/O Bus
DC / DC
converter
Galvanically
separated
interface
Electrical isolation
VCC
COM
+5 V GND
Filter
+Uin
-Uin
Programming
Classic: For programming the modules, an FBox is available.
xx7 and RIOs: the rmware reads in the values according to the conguration (I/O
Builder or network congurator)
Watchdog: This module can be used on all base addresses; there is no interaction
with the watchdog on the CPUs. For details, please refer to the “Watchdog”
section, which describes the correct use of the watchdog in conjunction with PCD2
components.