Siemens S5-135U/155U System Manual page 205

Controls and
The controls and indicators are arranged on the front plate of the CPU
Indicators
module:
Figure 5-8
System Manual
C79000-G8576-C199-06
CPUs, Memory Cards, Memory Submodules, Interface Submodules
Receptacle for
User Memory Submodule
Mode Switch
RUN
STOP
LED (green)
RUN
STOP LED (red)
RÜCKSETZEN
RESET
Momentary-Contact Mode Switch
URLÖSCHEN
OVERALL
RESET
Fault Indicator LEDs (red)
QVZ
ADF
ZYK
BASP
Order Number and Version
PG Interface, 15-Pin
Release Lever
Locking Pin
Front Plate of the CPU 928
5-65