SBC PCD1 Series - Page 199

Saia-Burgess Controls AG
Manual Manual PCD 1 / PCD 2 Series │ Document 26 / 737 EN22 │ 2013-11-26
5
Input/output (I/O) modules
5-63
Analogue input modules
Block diagram
INPUT FILTER
E0
E1
E2
E3
E4
E5
E6
E7
ANALOGUE INPUTS
MUX
A
D
BUSY (adr. 15)
DATA OUT
10 bits serial
A/D act. (addr. 15)
Clock
Channel address 0.. 7
I/O Bus
DATA
READ
WRITE
ADDR
PCD Bus
+5 V
GND
+24 V
Voltage
Source
10.000 V
7K5
GND
Ref.
Voltage
2.500 V
..W220 only
Watchdog: This module cannot be used on the base address 240 (or 496 for the
PCD2.M170), because it would interact with the watchdog, and would cause a
malfunction.
Programming examples for the PCD3.W2x0 can be found in a separate manual and on the
TCS Support site www.sbc-support.com.
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 interact with the watchdog, if it is used on base address 240. In
this case, the last input with address 255 cannot be used.
For details, please refer to the "Watchdog" section, which describes the correct use of the
watchdog in conjunction with PCD3 components.