Siemens CPU 948 Manuals

Manuals and User Guides for Siemens CPU 948. We have 1 Siemens CPU 948 manual available for free PDF download: Programming Manual

Siemens CPU 948 Programming Manual

Siemens CPU 948 Programming Manual (548 pages)

SIMATIC S5 S5-155U

Brand: Siemens | Category: Controller | Size: 2 MB

Table of Contents

Table of Contents
3
1 Introduction

9
Contents of Chapter 1

11
2 User Program

31
3 Program Execution

73
- Program Execution
  75
- Principle of Program Execution
  76
- Program Organization
  77
- Storing Program and Data Blocks
  82
- Processing the User Program
  83
- Definition of Terms Used in Program Execution
  84
- STEP 5 Operations with Examples
  87
- Basic Operations
  91
- Programming Examples in the STL, LAD and CSF Methods of Representation
  106
- Supplementary Operations
  121
- Executive Operations
  131
- Semaphore Operations
  147
4 Operating Statuses and Program Execution Levels

153
- Operating Statuses and Program Execution Levels
  155
- Program Execution Levels
  156
- STOP Mode
  161
- Soft Stop
  161
- Hard Stop
  165
- Overall Reset
  166
- START-UP Mode
  168
- MANUAL and AUTOMATIC COLD RESTART
  169
- MANUAL and AUTOMATIC WARM RESTART
  170
- Comparison between COLD RESTART and WARM RESTART
  173
- Retentive Cold Restart
  174
- Comparison of COLD RESTART and RETENTIVE COLD RESTART
  175
- User Interfaces for Start-Up
  176
- Extended AUTOMATIC WARM RESTART with the CPU 948 (HOT RESTART)
  179
- Interruptions During START-UP
  180
- RUN Mode
  181
- Cyclic Program Execution
  182
- Specifying Time and Interrupt-Driven Program Execution
  184
- Interrupt-Driven Program Execution
  184
12 Appendix

195
5 Interrupt and Error Diagnostics

199
- Interrupt and Error Diagnostics
  201
- Frequent Errors in the User Program
  202
- Error Information
  203
- Procedure for Error Analysis
  206
- Control Bits and Interrupt Stack
  207
- Control Bits
  208
- ISTACK Content
  212
- Example of Error Diagnosis Using the ISTACK
  217
- Error Handling Using Organization Blocks
  218
- Causes of Error and Reactions of the CPU
  221
- OB 19: Calling a Logic Block that Is Not Loaded (KB)
  222
- OB 19: Calling a Data Block that Is Not Loaded (KDB)
  222
- OB 23/24, ob 28/29:Timeout Error (QVZ)
  223
  - OB 23/24, ob 28/29: Timeout Error (QVZ)
    223
- OB 25: Addressing Error (ADF)
  224
- OB 26: Cycle Time Exceeded Error (ZYK)
  225
- OB 27: (Substitution Error SUF)
  226
- OB 30: Parity Error and Timeout Error in the User Memory (PARE)
  226
- OB 32: Load and Transfer Error (TRAF)
  227
- OB 33: Collision of Timed Interrupts Error (WEFES/WEFEH)
  228
- OB 34: Error with G DB/GX DX (FEDBX)
  230
- OB 35: Communication Errors
  230
- OB 36: Error in Self-Test
  231
- Self-Test
  232
  - Overview
    232
- Description of the Test Functions
  233
- Settings
  235
- Error Handling
  236
6 Integrated Special Functions

239
7 Extended Data Block DX 0

309
- Application
  310
- Structure of DX 0
  311
- Example of Input in DX 0
  313
- Parameters for DX 0
  314
- Examples of Parameter Assignment
  318
- Parameter Assignment Using the PG Screen Form
  320
8 Memory Assignment and Memory Organization

325
- Memory Assignment and Memory Organization
  327
- Structure of the Memory Area
  328
- Memory Assignment in the CPU 948
  329
- Memory Assignment for the System RAM
  330
- Memory Assignment for the Peripherals
  332
- User Memory Organization in the CPU 948
  334
- Block Headers in User Memory
  336
- Block Address List in Data Block DB 0
  337
- RI/RJ Area
  338
- RS/RT Area
  339
- Bit Assignment of the System Data Words
  342
- Addressable System Data Area
  366
9 Memory Access Using Absolute Addresses

371
- Memory Access Using Absolute Addresses
  373
Introduction

374
10 Multiprocessor Mode

408
- Exchanging Data Via IPC Flags
  409
- Exchanging Data Via Handling Blocks
  412
- What Needs to be Programmed for the Multiprocessor Mode?
  413
- Starting up in the Multiprocessor Mode
  417
- Test Mode
  418
- Multiprocessor Communication
  419
- How the Transmitter and Receiver Are Identified
  420
- Why Data Is Buffered
  421
- How the Buffer Is Processed and Managed
  422
- System Start-Up
  425
- Calling Communication Obs
  426
- How to Assign Parameters to Communication Obs
  427
- How to Evaluate the Output Parameters
  428
- Runtimes of the Communication Obs
  435
- INITIALIZE Function (ob 200)
  437
- Call Parameters
  439
- Output Parameters
  442
  - SEND Function (ob 202)
    444
  - Function
    444
  - Call Parameters
    444
  - Input Parameters
    444
  - Output Parameters
    446
  - SEND TEST Function (ob 203)
    449
  - Function
    449
  - Call Parameters
    449
  - Input Parameters
    449
  - Output Parameters
    449
  - RECEIVE Function (ob 204)
    451
  - Call Parameters
    451
  - Input Parameters
    451
  - Output Parameters
    452
  - RECEIVE TEST Function (ob 205)
    455
  - Function
    455
  - Call Parameters
    455
  - Input Parameters
    455
  - Output Parameters
    455
  - 10.9 Applications
    457
  - Calling the Special Function ob Using Function Blocks
    457
  - Transferring Data Blocks
    464
  - Extending the IPC Flag Area
    470
11 PG Interfaces and Functions

485
- PG Interfaces and Functions
  487
- Overview
  488
- PG Functions
  489
- Info
  490
- Installation
  491
- Program Test
  492
- Serial Link PG - PLC Via 1St or 2Nd Serial Interface
  500
- Parallel Operation of Two Serial PG Interfaces
  501
- Installation
  503
- Sequence in Certain Operating Situations
  505
- PG Functions Via the S5 Bus
  511
- How the PG Functions Work Via the S5 Bus
  513
- Installation and Getting Started
  515
- Condition Codes Indicating Problems
  519
13 Indexes

537

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