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5-47

System Manual
C79000-G8576-C199-07

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

SIEMENS

Receptacle for
User Memory Submodule

Mode Switch

LED (green)

LED (red)

Momentary-Contact Mode Switch

Fault Indicator LEDs (red)

PG Interface, 15-Pin
Interface SI 1

Release Lever
Locking Pin

Interface Fault Indicator LEDs (red)

Interface 1
Interface 2

RUN

STOP

RUN

STOP

RÜCKSETZEN

RESET

URLÖSCHEN
OVERALL RESET

SI1

SI2

QVZ

ADF

ZYK

BASP

Order Number and Version

Receptacle for Interface Submodule
Interface SI 2

SI2

SI1

6ES5928-3UB12

CPU 928B

Figure 5-6

Front Plate of the CPU 928B

Controls and
Indicators

CPUs, Memory Cards, Memory Submodules, Interface Submodules

Содержание 928B

Страница 1: ...ring both very fast bit processing and very fast word processing Cyclic Time controlled 9 different timebases Real time controlled Interrupt driven hardware interrupt Delayed from Version 6ES5 928 3UB12 The programming language is STEP 5 The electronic circuitry of the CPU 928B is on two PCBs basic and expansion boards in the double Eurocard format Both PCBs are screwed together linked via connect...

Страница 2: ...of PG interface SI1 via the front connector of the CPU 928B and of the coordinator is not possible Electrically it is merely a PG interface which can be operated via two different terminals Switching the programmer online without a job request is already sufficient to operate the interface If you wish to utilize a second PG interface for connection of a PG or OP the connection must be made via the...

Страница 3: ...ace submodule The opening to accept a submodule in the front plate is closed by a cover Only remove the cover to fit an interface submodule A description of interface submodules can be found in Section 5 11 and the order numbers in the ordering information A detailed description of the second interface can be found in the CPU 928B Communication Manual There is an interrupt line in the PLC for each...

Страница 4: ...ller Step Action 1 Release the upper locking bar of the central controller and ensure that the locking pin for the module is correctly positioned with the slot head horizontal 2 Select the correct slot based on the labelling of the locking bar Insert the CPUs in the S5 135U 155U from slot 11 3 Push the module evenly into the guide rail until the lever over the locking pin is horizontal 4 Press the...

Страница 5: ...Release the locking pin of the module 3 Press the release lever downwards and pull the module forwards and out of the central controller Note Only operate the CPU 928B with the submodule receptacle closed You close it either by fitting an interface submodule or with the cover supplied Removal CPUs Memory Cards Memory Submodules Interface Submodules ...

Страница 6: ... LEDs red PG Interface 15 Pin Interface SI 1 Release Lever Locking Pin Interface Fault Indicator LEDs red Interface 1 Interface 2 RUN STOP RUN STOP RÜCKSETZEN RESET URLÖSCHEN OVERALL RESET SI1 SI2 QVZ ADF ZYK BASP Order Number and Version Receptacle for Interface Submodule Interface SI 2 SI2 SI1 6ES5928 3UB12 CPU 928B Figure 5 6 Front Plate of the CPU 928B Controls and Indicators CPUs Memory Cards...

Страница 7: ...eas are erased and initialized both on the CPU and on a RAM submodule Momentary contact switch up During a reset all flags timers counters and the process image will be erased OB 20 will be invoked Processing of the user program will start from the beginning again Momentary contact switch at midpoint With a restart processing of the user program will continue from the point of interruption The sta...

Страница 8: ... state An overall reset has been requested This request can be initiated by the CPU itself or by operator action QVZ LED on During direct access or process image update a module addressed by the program no longer acknowledges although either it has acknowledged in single processor operation upon reset of the CPU 928B in the area of the process image IB 0 to 127 QB 0 to 127 and has been entered as ...

Страница 9: ...rupt and error handling can be found in the CPU 928B Programming Guide LED SI1 LED SI2 Cause on on No communication possible at both interfaces Internal error on off SI1 No communication possible Internal error SI2 If used interface is initialized and ready off on SI1 Interface is initialized and ready SI2 No communication possible Wrong interface submodule inserted or wrong parameters for interfa...

Страница 10: ...o STOP 2 Hold the MC switch in the RESET setting and simultaneously set the mode switch from STOP to RUN Red STOP LED goes off Green RUN LED lights up Red BASP LED goes off The CPU is now in the RUN state but still has no user program You can also carry out a manual restart of the CPU 928B with the mode switch The CPU 928B Programming Guide will indicate when a manual restart is permissible Step A...

Страница 11: ... 760 mA max Backup voltage 3 4 V Backup current 20 A typical at 25 C P area O area IM3 area IM4 area Total Digital inputs with process image Digital inputs without process image or analog inputs 1024 max 1024 max 64 max 2048 max 128 max 2048 max 128 max 2048 max 128 max 1024 max 7168 max 448 max Digital outputs with process image Digital outputs without process image or analog outputs 1024 max 102...

Страница 12: ...ks OB See Pocket Guide Integrated serial interface PG interface Optional serial interface Via interface submodules optionally as V 24 TTY RS 422A 485 or PG interface SINEC L1 interface from Version 6ES5 928 3UB12 Backplane bus S5 bus Dimensions w x h x d 40 64 x 233 4 x 160 mm Weight Approx 1 kg CPUs Memory Cards Memory Submodules Interface Submodules ...

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