Siemens PGC 302 Edition II - Block Diagram

Block diagram
Bedien
gerät
an-
schlie
ß
Mains clock
Analog inputs
8x for Pt100
2x thermocouple
Digital outputs
10x si
g
nals for
electronic rela
y
s
Heater tri
gg
er
Analog outputs
4x 0/4 ... 20 mA
Interface board 3
Digital inputs
Simatic fault
Housin
g
temperature
Carrier
g
as pressure
2x ext. read
y
(A,B)
8x for optional use
Terminal board
Mains clock
Heater control board
Terminals for
8x Pt100
Power su
pp
l
y
5V, 24V
12V, +15V, -15V
Analog outputs
4x 0/4 ... 20 mA
Terminals for
interfaces
Heater
enable
Pt100
Thermocouple
Recorder
SER.1 TTY
SER.3 RS485
SER.4 RS485
TCD
FID
I
g
nition
module
Interfaces
PCPU-2
Digital outputs
Device failure
Maintenance request
2x bus
y
(A and B)
Heater enable
16x valves
Detector electronics
Channel A
Bus board
El. relays
2x oven
6x modules
Heaters
Temperature
limiter
(Ex)
Plug for
2x thermocouple
attachments
Channel B
Thermocouple
attachment
Filter
230 V
~
Ex
Busdriver
Detector electronics
Summary of electronics
9FUNKT.CHP, Issue Dezember 22, 1999
3