Siemens Simatic S7-300 CPU 31xC and CPU 31x S7-300 Manual de usuario Pagina 31
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Communication
3.1 Interfaces
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
3-3
Note
(for DP interface in slave mode only)
When you disable the Commissioning / Debug mode / Routing check box in the DP interface
properties dialog in STEP 7, all user-specific transmission rate settings will be ignored, and
the transmission rate of the master is automatically set instead. This disables the routing
function at this interface.
Devices capable of PROFIBUS DP communication
• PG/PC
• OP/TP
• DP slaves
• DP masters
• Actuators/Sensors
• S7-300/S7-400 with PROFIBUS DP interface
Reference
Further information on PROFIBUS: http://www.profibus.com
3.1.3 PROFINET (PN)
Availability
CPUs with a “PtP“ name suffix are equipped with a PtP X2 interface. X2.
Connecting to Industrial Ethernet
You can use the integrated PROFINET interface of the CPU to establish a connection to
Industrial Ethernet.
The integrated PROFINET interface of the CPU can be configured via MPI or PROFINET.
Requirements
• CPUs with FW 2.3.0 or higher (for example CPU 315-2 PN/DP)
• STEP 7 V5.3 + Servicepack 1 or higher
- SIMATIC 1
- CPU 31xC and CPU 31x 1
- Technical data 1
- Preface 3
- Approvals 4
- CE label 4
- C tick mark 4
- Standards 4
- Documentation classification 5
- Recycling and Disposal 6
- Table of contents 10
- Table of contents 11
- Overview 13
- Selecting and configuring 13
- (1) Analog I/Os 18
- Mode selector switch 19
- Power supply connection 19
- Differences between the CPUs 19
- MAC-ADD.: 25
- X1-X2-X3 25
- X4-X5-X6 25
- Communication 29
- 3.1.2 PROFIBUS DP 30
- 3.1.3 PROFINET (PN) 31
- 3.1.4 Point to Point (PtP) 33
- 3.2 Communication services 34
- 3.2.2 PG communication 35
- 3.2.3 OP communication 35
- 3.2.5 S7 communication 36
- Properties 37
- Reduction ratio 37
- Send and receive conditions 37
- 3.2.7 Routing 38
- Communication 39
- 3.2 Communication services 39
- Number of routed connections 40
- Requirements 41
- Real installation 42
- Configuration in STEP 7 42
- 3.2.8 PtP communication 43
- 3.2.9 Data consistency 44
- Objectives in PROFINET 45
- What is PROFINET IO? 45
- Further Information 46
- 3.2.10.1 PROFINET IO System 47
- 3.2 Communication services 48
- System Description PROFINET 48
- Detailed Information 50
- Chapter Content 51
- Data exchange 53
- Disconnecting 53
- Communication interruptions 53
- 3.3 S7 connections 54
- Connection points 55
- Transition point 55
- 3.3 S7 connections 56
- 3.3 S7 connections 57
- Example of a CPU 314C-2 DP 59
- 3.4 DPV1 60
- 3.4 DPV1 62
- 4.1.1 CPU memory areas 63
- System memory 64
- Retentive data in RAM 65
- Memory concept 66
- I/O process image 67
- Memory concept 69
- Local data 70
- Properties of an MMC 71
- MMC copy protection 72
- Useful life of an MMC 72
- 4.2 Memory functions 73
- 4.2.3.2 Uploading blocks 74
- Uploading blocks 74
- 4.2 Memory functions 75
- Restart (warm start) 76
- 4.2.5 Recipes 77
- 4.2 Memory functions 78
- Processing sequence 79
- Function principle 81
- 5.2 Cycle time 84
- Cycle and reaction times 85
- 5.2 Cycle time 85
- Extending the cycle time 86
- Process image update 87
- 5.2 Cycle time 88
- 5.2.3 Different cycle times 90
- 5.2.4 Communication load 91
- Runtimes 93
- Extending the OB1 cycle time 93
- Tips and notes 95
- 5.3 Response time 96
- 5.3 Response time 97
- Calculation 100
- See also 100
- Reducing the response time 100
- Introduction 101
- Cycle time 101
- Response time 102
- 5.5 Interrupt response time 103
- Signal modules 104
- Process interrupt processing 105
- Reproducibility 105
- 5.6 Sample calculations 106
- Installation 107
- User program 107
- Calculating the cycle time 107
- Cycle and reaction times 108
- 5.6 Sample calculations 108
- Technical data of CPU 31xC 111
- 6.1 General technical data 112
- 6.2 CPU 312C 113
- 6.2 CPU 312C 114
- Technical data of CPU 31xC 115
- 6.2 CPU 312C 115
- Technological 117
- Functions 117
- Technological Functions 117
- 6.3 CPU 313C 118
- 6.3 CPU 313C 119
- 6.3 CPU 313C 120
- Reference 123
- 6.6.2 Analog I/O 144
- Measurement principle 145
- Selection in STEP 7 146
- (Software filter) 146
- 1 averaged measured value 147
- Inputs not connected 148
- Outputs not connected 148
- 6.6.3 Configuration 149
- Parameters of standard DO 151
- Parameters of standard AI 151
- Parameters of standard AO 152
- 6.6.4 Interrupts 155
- 6.6.5 Diagnostics 156
- 6.6.6 Digital inputs 156
- 6.6.7 Digital outputs 158
- 6.6.8 Analog inputs 161
- 6.6.9 Analog outputs 163
- Technical data of CPU 31x 167
- 7.1 General technical data 168
- 7.2 CPU 312 169
- 7.2 CPU 312 170
- Technical data of CPU 31x 171
- 7.2 CPU 312 171
- 7.3 CPU 314 174
- 7.3 CPU 314 175
- 7.3 CPU 314 176
- 7.4 CPU 315-2 DP 179
- 7.4 CPU 315-2 DP 180
- 7.4 CPU 315-2 DP 181
- 7.5 CPU 315-2 PN/DP 185
- 7.5 CPU 315-2 PN/DP 186
- 7.5 CPU 315-2 PN/DP 187
- 7.6 CPU 317-2 DP 192
- 7.6 CPU 317-2 DP 193
- 7.6 CPU 317-2 DP 194
- 7.7 CPU 317-2 PN/DP 199
- 7.7 CPU 317-2 PN/DP 200
- 7.7 CPU 317-2 PN/DP 201
- Appendix 207
- SFC 20 "BLKMOV" 209
- SFC 54 "RD_DPARM" 209
- New response by the CPU 210
- Appendix 211
- Replacing a CPU 31xC/31x 212
- Consistent data 213
- A.1.10 PG/OP functions 214
- CPU 317 215
- Procedure 216
- Glossary 217
- See PROFINET CBA 218
- Glossary 219
- See Communication processor 219
- Data, temporary 220
- Default Router 220
- Determinism 220
- Device Name 220
- See System diagnostics 221
- See Switch 224
- See Fast Ethernet 224
- See Slave 227
- See SIMATIC NCM PC 227
- See Organization blocks 228
- See SIMATIC PC Station 229
- See Programming device 229
- See PROFIBUS International 229
- PROFINET 231
- PROFINET ASIC 231
- PROFINET CBA 231
- PROFINET Component 231
- PROFINET Device 231
- See PROFINET Device 233
- See Ground 233
- See Master 235
- See Proxy 236
- See Timers 237
- See Interrupt, time-of-day 237
- See Operating system 238
- See STEP 7 238
- Index 242
- Index 243
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