Siemens SIMATIC NET PROFIBUS Instrucciones de operaciones Pagina 81
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Configuring Networks
3-15
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
Power Budget
The power budget of an optical link not only takes into account the attenuation in
the fiber itself, temperature and aging effects but also the attenuation values of the
connectors and splices and therefore provides exact information about whether or
not an optical link can be implemented. The starting point for calculating the
maximum transmission path length is the minimum transmitter power that can be
coupled into the fiber type. To simplify matters, the budget is calculated in dBm and
dB.
The following is subtracted from the minimum transmitter power:
S The attenuation of the fiber a
FOC
[in dB/km or dB/m] (see manufacturers data)
S The input power required at the receiver
The coupling losses at the send and receive diodes are already taken into account
in the information about the transmitter power and receiver sensitivity.
Plastic and PCF FO Cables
Plastic and PCF FO cables can only be used on short distances due to their
relatively high fiber attenuation. They are installed in one piece. Fiber-optic
connections with couplers or splices should not be considered since they further
reduce the distance that can be covered.
The maximum permitted cable lengths are listed in Tables 3-7 and 3-8.
Glass FO Cables
Glass FO cables can span distances in the kilometer range. It is often not possible
to install cables over such distances in one piece. The fiber-optic path must then
be put together in cable sections.
The couplers or splices where the sections are joined always involve certain
attenuation losses.
With transmission paths using glass fibers, the following aspects must also be
taken into account:
S The attenuation of splices
S The attenuation of connectors
S When calculating the power budget, a link power margin of at least 3 dB (at a
wavelength of 860 nm) or at least 2 dB (at a wavelength of 1300 nm) must be
maintained.
Splices
Along with the splices, future repair splices must also be taken into account.
Depending on the route of the cables and the risk of mechanical damage, one or
more future repairs (approximately 1 per 500 m) should also be included in the
budget. A repair always means two splices since a new section of cable must be
inserted (the length depending on the accuracy of the test equipment).
- Qualified Personnel 2
- Correct Usage 2
- Trademarks 2
- Safety Guidelines 2
- Contents 10
- PROFIBUS NETWORKS 11
- 1.1.1 General Introduction 12
- SIMATIC NET 13
- AS-Interface 14
- PROFIBUS 14
- PROFIBUS-PA 14
- EN 50170 15
- Attachable Systems 15
- Transmission Media 16
- 1.2.1 Standards 17
- 1.2.2 Access Techniques 18
- 1.2.3 Transmission Techniques 19
- EIA Standard RS-485 20
- Advantages: 20
- Restrictions: 21
- Restrictions 24
- IEC 61158-2 Standard 25
- Transmission Rate 28
- LAN Cable 28
- Node Attachment 28
- 2.2.2 Topologies with OLMs 33
- Bus Topologies 34
- Star Topologies with OLMs 35
- Optical Channels 35
- Monitoring FO Links 36
- Mixed Structure 36
- Alternative Cabling Strategy 38
- Maximum Length of a Link 40
- Point-to-Point Link 40
- Point-to-Multipoint Link 41
- Bus and Star Topology 43
- SpliTConnect System 43
- 2.5 Connectivity Devices 46
- 2.5.1 DP/DP Coupler 46
- How the DP/DP Coupler Works 47
- Parameter Assignment 47
- DP/PA Bus Coupling 48
- 2.5.3 DP/PA Coupler 49
- 2.5.4 DP/PA Link 51
- How the DP/PA Link Works 52
- DP/AS-Interface Link 65 57
- Figure 2-24 DP/EIB Link 62
- Building Automation 63
- Industrial Automation 63
- How the DP/EIB Link Works 64
- Configuring 65
- Configuring Networks 67
- PROFIBUS Networks 68
- Parameters 68
- Length of the Tap Lines 70
- Transmission Rate 1.5 Mbps 70
- Node Attachments at 1.5 Mbps 70
- Value Factors 71
- RS-485 Repeater 75
- Transmission Path 78
- Transmitter 78
- Receiver 79
- Optical Power Budget 80
- Power Budget 81
- Plastic and PCF FO Cables 81
- Glass FO Cables 81
- Link Power Margin 82
- Work Sheet 82
- Calculation Examples 84
- Link at Wavelength 86
- 3.3 Transmission Delay Time 88
- Checking the Bus Parameters 92
- OLM/G11-1300 and OLM/G12-1300 96
- Calculation of the Slot Time 97
- Entering the Bus Parameters 97
- PROFIBUS Cables 100
- Overview 100
- Permitted ambient conditions 101
- 02Y(ST)CY 103
- Permitted ambient conditions 103
- 4.1.1 FC Standard Cable 105
- Properties 106
- 4.1.3 FC Food Cable 107
- 4.1.4 FC Robust Cable 108
- 4.1.5 PROFIBUS Flexible Cable 109
- 4.1.6 FC Underground Cable 111
- 4.1.7 FC Trailing Cable 112
- Segment Lengths 114
- PROFIBUS Networks SIMATIC NET 115
- 4.1.8 PROFIBUS Festoon Cable 116
- Installation Guidelines 119
- 4.2 FastConnect Bus Connector 122
- 4.2.1 The FastConnect System 122
- FastConnect Bus Connector 123
- Technical Specifications 125
- Disconnect Function 126
- Disconnecting a Station 126
- Bus Connector with PG Socket 126
- 6ES7972-0B.50-0XA0 127
- 4.3 Bus Connectors 130
- Connector 131
- Connecting Up the LAN Cable 136
- 972-0BA30-0XA0) 138
- Appearance (6GK1500-0EA02) 142
- Fitting the Bus Connector 143
- Removing the Bus Connector 144
- 4.7.1 Versions 146
- Bus Terminal RS-485 147
- Cable Termination 147
- Additional PG Interface 149
- Bus terminal 12 M 151
- Termination 152
- MADE IN GERMANY 156
- Wall Mounting 157
- 4.8 Cable Connections 161
- 4.9.1 830-1T Connecting Cable 163
- 4.9.2 830-2 Connecting Cable 165
- 5.1 RS-485 Repeater 168
- Block Diagram 171
- Terminating Resistor On/Off 172
- Segments 1 and 2 Terminated 173
- Rear view: Front view: 176
- 80 to 110 Ncm 176
- Ungrounded Operation 178
- Cable Type 179
- Connecting the Power Supply 179
- 5.6 Connecting the LAN Cable 180
- 6ES7 972-0DA00-0AA0 181
- S Rated voltage 24 V DC 182
- S Flexible cables 182
- S Solid cables 182
- Connecting the PROFIBUS Cable 183
- 6.1 FC Process Cable 186
- 6.2 SpliTConnect Tap 187
- 1) siehe Montageanleitung des 191
- FastConnect Stripping Tool 191
- 1) siehe Montageschritt 2 195
- Networks 197
- 7.1 Fiber-Optic Cables 198
- 7.2.3 PCF Fiber-Optic Cables 206
- 7.3 Glass Fiber-Optic Cables 209
- Ordering 219
- 7.3.5 Special Cables 220
- 7.4 Fiber-Optic Connectors 222
- Optical Interfaces 222
- Order Numbers 223
- Cable Lengths 224
- Fitting Connectors On-Site 227
- Preassembled Cables 227
- 8.1 Optical Bus Terminal OBT 230
- Functions 231
- Operating Instructions 231
- 8.2 Optical Link Module OLM 232
- 9.1 Infrared Link Module ILM 238
- Ordering Data: 239
- Testing PROFIBUS 241
- A.1.1 Possible Uses 242
- A.1.2 Area of Application 242
- A.1.3 Logging Functions 242
- A.1.4 Design 243
- A.1.5 Functions 244
- A.1.6 How the Unit Functions 245
- Ordering Data 246
- Attenuation 247
- Test Methods 247
- How an OTDR Functions 250
- OTDR Evaluation 251
- LAN Cables Between Buildings 255
- Introduction 256
- Further Literature 256
- Bus Cables within Buildings 256
- LAN Cables between Buildings 257
- Coarse Protection 257
- Installing LAN Cables 263
- C.2 Electrical Safety 265
- Mechanical Protection 266
- Redundant LAN Cables 267
- Install LAN cables separately 268
- Grounding 270
- Definition 270
- Cable Shields 270
- Handling the Shield 271
- C.4.4 Equipotential Bonding 272
- Voltages and Currents 275
- Fiber-Optic Cables 275
- Telecom Cables 275
- Cable Groups 275
- Conditions 276
- Clearance Table 276
- C.5.2 Cabling within Closets 278
- Underground Cabling 280
- Cabinet Lighting 281
- C.7 Installing LAN Cables 283
- Avoid Loops 285
- Installing other Cables 285
- Simplex Connectors or 289
- Stripping the Outer Jacket 296
- Removing the Buffer 298
- Fitting Simplex Connectors 299
- Assembling the Plug Adapter 300
- Cables, Tools and Accessories 301
- Crimping the BFOC Connector 310
- Copyright © Siemens AG 1999 316
- All Rights Reserved 316
- Using the Pulling Loop 318
- Marking of the 319
- Cubicles 321
- Degree of Protection 322
- E.2 SIMATIC NET Components 323
- Standards 324
- Dimension Drawings 325
- PRLFIBUSILM 335
- Infrared Link Modul (ILM) 344
- 6ZB530–3AC30–0BA1 344
- Copyright by Siemens 345
- 1 The Product 347
- 2 Symbols 348
- 3 Introduction 349
- 4 Description of the Device 350
- SIEMENS PROFIBUS ILM 351
- 5.1 Transmission Rate 352
- 5.2 Topologies 352
- 5.2.1 Point–to–Point–Link 353
- 5.3 Signal Regeneration 360
- 5.5 Constant Light Monitoring 360
- 6 Modes and Settings 363
- 12345678 366
- 7 Installation and Startup 369
- + Caution: 370
- 8 Installing the PROFIBUS ILM 372
- ) – S1 S2 380
- ) – S1 S 2 381
- 9 Displays 382
- 11 Technical Specifications 388
- 11.1 Illumination Range 391
- 12 Appendix 393
- 13 References 394
- Noise emission Noise immunity 395
- Safety Instructions 398
- Qualified personnel 398
- Certified usage 398
- 1 Introduction 401
- Optics Company 402
- 2 General Functions 403
- Version 1.0 8/00 404
- 3 Network Topologies 405
- 3.2 Star topology 408
- 3.3 Redundant optical ring 409
- 4 Setting Up 411
- NEC Class 2 24VDC, 200mA 412
- SINEC L2FO 413
- OLM/S3; OLM/S4; 413
- OLM/S3-1300; OLM/S4-1300 413
- OLM/P3; OLM/P4 413
- 4.4 Installation 416
- Locking slide 417
- Toothed washer 417
- 5.1 LED Indicators 421
- 5.2 Troubleshooting 423
- 6 Configuration 425
- 7 Technical Data 427
- 8 Appendix 429
- 8.2 Literature notes 430
- 8.3 List of abbreviations 430
- 8.4 Measuring sockets 431
- © Siemens AG 1999 433
- Subject to alteration 433
- Order No. 6ZB5530-3AD00-0BA0 433
- Printed in Germany 433
- Connections 440
- Sensitivity 440
- Power Supply 440
- Operating Mode 440
- Mechanical Design 440
- Supplied 441
- Not supplied 441
- C79000-G8976-C122-02 442
- Functional Description 443
- 3.4 Supported FO Fiber Types 444
- 3.5 Displays 444
- 3.6 Operator Controls 446
- Network Topology 447
- 4.3 Attaching RS-485 Segments 449
- Installation and Startup 451
- 5.2 Installation 453
- Connecting the Optical Cables 456
- Troubleshooting 459
- Notes on the CE Label 465
- Notes for Australia 466
- References 467
- Abbreviations 469
- General Information 473
- Further Information 477
- SIMATIC Training Center 479
- Further Support 480
- Glossary 481
- Glossary-8 488
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