CPUs, Memory Cards, Memory Submodules, Interface Submodules

Controls and

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

Indicators

module:

 

CPU 928B

 

RUN

 

 

STOP

 

 

RUN

 

 

STOP

 

RÜCKSETZEN

 

RESET

 

URLÖSCHEN

 

OVERALLRESET

 

 

QVZ

SI1

 

ADF

SI2

 

ZYK

 

-3UB12

BASP

 

SI2

 

 

 

6ES5928

SI1

 

 

 

SIEMENS

 

 

Receptacle for

User Memory Submodule

Mode Switch

LED (green)

LED (red)

Momentary-Contact Mode Switch

Fault Indicator LEDs (red)

Interface Fault Indicator LEDs (red)

Interface 1

Interface 2

Order Number and Release

Receptacle for Interface Submodule Interface SI 2

PG Interface, 15-Pin

Interface SI 1

Release Lever

Locking Pin

Figure 5-6 Front Plate of the CPU 928B

System Manual

5-47

C79000-G8576-C199-06

Page 187
Image 187
Siemens S5-135U/155U appendix CPU 928B, SI1 Siemens