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Functions of the IM 151-7 CPU
8-23
ET 200S IM 151-7 CPU Interface Module
A5E00058783-04
8.4.4 Handling data in DBs
Recipes
A recipe is a collection of user data.
A simple recipe concept can be realized using non-process-related data blocks.
The recipes should have the same structure (length). There should be one DB for
each recipe.
Processing sequence of a recipe
The recipe is to be stored in the load memory:
The individual data records of the recipes are created as non-process-related
DBs using STEP 7 and downloaded to the IM 151-7 CPU. The recipes therefore
only occupy space in the load memory and not in the working memory.
Working with the recipe data:
Calling the SFC 83 ”READ_DBL” from the user program causes the data record
of the current recipe to be read out of the DB in the load memory and into a
process-related DB in the working memory. As a result, the working memory
only has to accommodate the data from one data record.
The user program can now access the data of the current recipe.
Load memory
(MMC)
Recipe 1
Recipe 2
:
Recipe n
Working memory
(IM 151-7 CPU)
Current
recipe
SFC 83
READ_DBL
SFC 84
WRIT_DBL
Figure 8-6 Handling recipe data
Writing back a modified recipe:
Calling the SFC 84 ”WRIT_DBL” from the user program writes new or modified
data records of a recipe, which are created during program processing, back to
the load memory.
The data written to the load memory is not erased by a memory reset and is
transferrable.
If modified data records (recipes) are to be stored on the PD/PC, they can be
uploaded and stored there as a complete block.
- Drawing number 1
- Qualified Personnel 2
- Correct Usage 2
- Trademarks 2
- Safety Guidelines 2
- Purpose of the manual 3
- Required level of knowledge 3
- Guide to the manual 6
- Special note 6
- Recycling and disposal 6
- Additional support 7
- Training center 8
- A&D Technical Support 8
- A5E00058783-04 10
- Contents 11
- Product Overview 19
- What is the IM 151-7 CPU? 20
- IM 151-7 CPU 21
- ET 200S fail-safe modules 26
- Getting Started 27
- Required material and tools 28
- Return 35
- 2.6 6th step: Test Run 36
- Set the slave address to 4 38
- Click on the New button; 38
- S7-300 CPU 42
- ResultAction 43
- IM 151-7 CPU and S7-300 45
- Diagnosis and troubleshooting 48
- Other manuals 48
- Addressing 49
- Slot Assignment 50
- Address Assignment 51
- Advantages 53
- Data consistency 54
- Access in the user program 55
- Rules for address allocation 56
- Sample Program 57
- S5 DP master 58
- Introduction 59
- Equidistance 59
- DP master functionality 59
- Access to the ET 200S 61
- 4.2 Network components 64
- 4.3 PROFIBUS address 66
- 4.4 Functions via the PD/OP 67
- Force test function 68
- Application example 69
- 4.5 Direct communication 70
- ET 200S in the MPI Network 73
- Structure of an MPI network 74
- Transmission rates 74
- Network components 74
- 5.2 MPI address 75
- DP Master Module 77
- Procedure 78
- Commissioning 79
- Stand-alone (MPI) 84
- IM 151-7 CPU as S7 slave 84
- Prerequisite 85
- How do you reset the memory? 86
- Commissioning the ET 200S 89
- Loading the user program 90
- Start-up 90
- 7.4 Diagnostics using LEDs 91
- Diagnostic addresses 94
- 7.6.1 Station status 1 to 3 98
- Station status 2 99
- Station status 3 99
- 7.6.2 Master PROFIBUS address 100
- 7.6.3 Manufacturer ID 100
- 7.6.4 Module diagnostics 101
- 7.6.5 Module status 102
- Structure 103
- 7.6.6 Interrupt status 104
- Commissioning and Diagnostics 106
- In this section 107
- More detailed information 107
- Bytes 0 and 1 109
- Module classes 109
- Bytes 2 and 3 109
- Bytes 4 to 7 110
- Single fault of a channel 111
- Functions of the IM 151-7 CPU 113
- 8.1 Data for the PROFIBUS-DP 114
- Mode selector 116
- 8.3 SIMATIC Micro Memory Card 118
- Service life of an MMC 119
- 6ES7 953Ć8Lx00Ć0AA0 121
- Firmware update with MMC 122
- 8.4 Memory concept 124
- Working memory 125
- System memory 125
- Retentivity 125
- Erasing blocks 128
- Uploading 128
- Compression 129
- Promming (RAM to ROM) 129
- Removing/inserting the MMC 130
- Memory reset 131
- Restart (warm restart) 131
- 8.4.3 Address areas 132
- Cycle time 133
- Local data 134
- 8.4.4 Handling data in DBs 135
- Measured value archives 136
- MMC access 137
- 8.5 Interfaces 138
- 8.6 Clock 140
- 8.7 S7 connections 141
- Assigning S7 connections 142
- 8.8 Communication 146
- OP communication 147
- S7 basic communication 147
- S7 communication 147
- Global data communication 148
- GD resources 149
- 8.9 Routing 150
- Prerequisites 151
- More information 152
- 8.10 Data consistency 153
- 8.11 Blocks 154
- 8.12 Parameters 156
- RTD-4L Pt 100 158
- Reference 159
- Exceptions 160
- Cycle and Response Times 165
- 9.1 Cycle time 166
- Extending the cycle time 167
- Process image transfer time 167
- User program scanning time: 168
- 9.2 Response time 169
- Shortest response time 170
- Calculation 170
- Longest response time 171
- 9.3 Interrupt response time 172
- Technical Specifications 173
- Order numbers 174
- Features 174
- SFC 20 ”BLKMOV” 182
- SFC 54 ”RD_DPARM” 182
- PD/OP functions 184
- Chapter overview 187
- More information 187
- 12.2 Porting the user program 189
- Porting with packed addresses 190
- Rewiring 190
- Glossary 193
- Diagnostic buffer 195
- Diagnostic interrupt 195
- Direct Communication 195
- Distributed I/O Systems 195
- DP Master 195
- FC Function 197
- Function 197
- Transmission rate 204
- User memory 204
- User program 204
- Working Memory 204
- Product information for 211
- 147Ć1AA11Ć0XB0) 211
- 147Ć2AA01Ć0XB0) 211
- 147Ć2AB01Ć0XB0) 211
- 151Ć7AA11Ć0AB0) 211
- A5E00385826-02 212
- Copyright 2006 by Siemens AG 213
- A5E00860829-01 213
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