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5 DP Diagnostics from the User Program of a SIMATIC S7−300
A−122
S7-CPs for PROFIBUS Configuring and Commissioning
Release 09/2011
C79000−G8976−C181−05
Response
Note the following response during execution and on the interface to your user
program:
The status “Evaluation of DP diagnostic list useful” in DPSTATUS is reset by
reading the diagnostic list.
The station−related bits in the diagnostic list stored on the CP are reset after
reading out the relevant single diagnostics information.
Note
If the single diagnostics information is read before the diagnostic list is evaluated,
neither the bits in DPSTATUS nor the bits in the diagnostic list will be reset!
5.4.3 Reading out DP Single Diagnostics
Application Program
The DP_DIAG function is used to read out the DP single diagnostic data. The
necessary parameters are explained in the description of the block. DP_DIAG is
described in /6/.
Saving the Diagnostic Data
The DP diagnostic data can be read into a data block or a bit memory area on the
CPU. The address must be specified in the DP−DIAG block call.
- SIMATIC NET 1
- S7-CPs for PROFIBUS 1
- Configuring and Commissioning 1
- This manual 5
- Audience 6
- Scope of this Manual 6
- New in this version 7
- Symbols Used in this Manual 10
- Conventions 10
- SIMATIC NET glossary 11
- Contents 12
- Contents − Part B 15
- Stations 16
- 1.1 PROFIBUS 17
- 1.2.1 Type of Communication 18
- S7/C7-300 19
- S7-400/S7-400H 19
- 1) PC only as client 20
- PROFIBUS 23
- PROFIBUS CP 25
- Configuring S7 Connections 26
- Interface) 28
- 1.6 PROFIBUS DP 30
- I/O Systems from Siemens 31
- Network Configuration 32
- FMS Master 34
- 1.6.4 DP Slave Mode 35
- Configuring 36
- Networking in a Multiproject 36
- Variants 37
- Configuration of the System 38
- 2.3 Attaching to PROFIBUS 47
- 2.3.2 Optical Attachment 48
- Direct Optical Attachment 49
- S7−300 Series 50
- S7−400 Series 52
- by configuring in the 55
- Settings 61
- Standard 62
- Universal (default setting) 62
- User-defined 62
- Subnet Attachment 64
- Graphic Overview in NetPro 66
- Overview in Table Form 67
- Addresses Tab 68
- Operating Mode Tab 69
- Field Device Parameter 71
- Multiplex OP Connections / 71
- Communication Variables Tab 72
- Diagnostics Tab 72
- Modifications 76
- Multiple Assignment 76
- Setting Up Connections 76
- Configuring the DP Mode 76
- Type of Interface 77
- 3.4 Additional Functions 79
- SIMATIC S7-300 81
- 4.1 Overview 82
- 4.2 Procedure 83
- Programming 84
- Obtaining the Functions (FCs) 84
- Bus Parameters 86
- Sequence of the Modes 90
- DP Process 91
- Assigning an Address Offset 94
- Configuration Table 95
- Size of the Total Area 95
- To achieve synchronization 98
- To update the data of a 98
- Release 09/2011 100
- C79000−G8976−C181−05 100
- Overview 101
- Reaction Time of the Master 102
- Other Possibilities 102
- Updating DP Data Areas 104
- Functions 104
- Initializing a DP Master 104
- CPU Cycle 104
- DP_CTRL Control job 105
- Examples 106
- DP Modes 107
- Changing DP Modes 107
- User Intervention 108
- Control Job with DP_CTRL 109
- Reading Input/Output Data 110
- Application and Uses 111
- Using FC DP-CTRL 111
- SIMATIC S7−300 112
- 5.1 DP Diagnostic Options 113
- Diagnostic Sequence 114
- Integration in the CPU Cycle 115
- Bit Meaning 116
- 5.3 The DP Station List 117
- Saving the Station List 119
- 5.4 DP Single Diagnostics 120
- Response 122
- Application Program 122
- Saving the Diagnostic Data 122
- Bit No. ExplanationMeaning 124
- Bit No. Meaning Explanation 124
- Mode with an S7-300 System 126
- 6.1 Procedure 127
- Characteristics 128
- Tasks of the PROFIBUS CP 128
- Area of Consistency 128
- Functions (FCs) 130
- 6.2.2 DP Data Area on the CPU 131
- DP buffers in PROFIBUS CP 132
- Initialization 133
- Parameter Assignment 133
- Configuration 133
- Watchdog 134
- Diagnostic Data 134
- 6.2.4 Global Control Jobs 135
- Procedure 136
- Requirements 137
- Basic Data of the DP Slave 142
- Programming the DP Slave Mode 143
- Purpose of the FC 143
- Evaluate the Code Bits 143
- Structure of DPSTATUS 144
- Calling FCs in the CPU Cycle 144
- 6.5 Starting Up a DP Slave 145
- 7.1 Procedure 147
- More than One Subnet 148
- Application 150
- Requirement for Configuration 151
- Priority of the Frames 151
- Amounts of Data 152
- Connections 158
- New Connection 158
- Introduction 162
- Opening the Dialog 162
- General Tab 163
- Routing to Distribute Load 164
- Overview Tab 169
- Programming FDL Connections 174
- Principle 176
- 8 NCM S7 Diagnostics 178
- 8.1 Overview 179
- Mode-Dependent Functions 180
- Installation 181
- Structure 182
- Operation 182
- 8.2.2 General Menu Commands 183
- 8.3 Starting Diagnostics 184
- 8.3.4 Using a Gateway 187
- Case b: Several Gateways 188
- 8.4 Steps in Diagnostics 191
- 9 Firmware Loader 205
- 9.1 Application 206
- 9.2 Loading Firmware 207
- Further information 208
- A Pinout 209
- SIMATIC NET S7−CPs 210
- EMC Directive 211
- Machinery Directive 212
- CSA Certification 214
- FM Approval 214
- C References and Literature 216
- Order Numbers 220
- D Document History 221
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