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 928A

QVZ

ADF

ZYK

BASP

RUN

STOP RESET

OVERALL

RESET

SI1

SIEMENS ES5928-3UA21

Fault Indicator LEDs (red)

Receptacle for

User Memory Submodule

LED (green)

Mode Switch

LED (red)

Momentary-Contact Mode Switch

Interface Fault Indicator LED (red)

PG Interface, 15-Pin

Order Number and Version

Release Lever

Locking Pin

Figure 5-7 Front Plate of the CPU 928 -3UA21

System Manual

5-57

C79000-G8576-C199-06

Page 197
Image 197
Siemens S5-135U/155U appendix Front Plate of the CPU 928 -3UA21