Siemens S5-135U/155U - Manual (Page 160)

5-20
System Manual
C79000-G8576-C199-06
The controls and indicators are arranged on the front plate of the CPU
module:
SIEMENS
6ES5948–3UA1
1
RUN
STOP
RUN
STOP
SYS FAULT
RESET
RÜCKSETZEN
URLÖSCHEN
OVERALL
RESET
QVZ
ADF
ZYK
BASP
INIT
SI1
SI2
Receptacle for
S5-155U CPU948
Memory Card
Mode Switch
LED (green)
LED (red)
LED (red)
Momentary-Contact Mode Switch
Fault Indicator LEDs (red)
Fault Indicator LED (red)
Interface Fault Indicator LEDs (red)
Oder Number and Version
Interface SI1
PG Interface, 15-Pin
Release Lever
Locking Pin
SI1 SI2
Second Serial Interface SI2
Receptacle for Interface Module
Figure 5-4 Controls and Indicators of the CPU 948
Controls and
Indicators
CPUs, Memory Cards, Memory Submodules, Interface Submodules