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Siemens S5-135U/155U User Manual

Page 146

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5-6

System Manual

C79000-G8576-C199-06

The controls and indicators are arranged on the front plate of the CPU
module:

CPU 948U

QVZ

ADF

ZYK

BASP

RUN

STOP

RESET

SI2

OV-
RESET

SIEMENS

6ES5948-3UA13

SI1

S–F

Receptacle for
User Memory Submodule

Momentary-Contact Mode Switch

Mode Switch

RUN LED (green)

STOP LED (red)

Fault Indicator LED (red)

PG Interface, 15-Pin
Interface SI1

Release Lever

Locking Pin

Order Number and Version

SYS FAULT LED (red)

SI1 Interface Fault Indicator LED (red)

SI2 Interface Fault Indicator LED (red)

Figure 5-2

Front Plate of the CPU 948-3UA13 or the CPU 948-3UA23

Controls and
Indicators

CPUs, Memory Cards, Memory Submodules, Interface Submodules