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Fieldbus Communication • 163
ETHERNET
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
4 Fieldbus Communication
4.1 ETHERNET
4.1.1 General
ETHERNET is a technology, which has been proven and established as an ef-
fective means of data transmission in the field of information technology and
office communication. Within a short time ETHERNET has also made a suc-
cessful breakthrough in the area of private PC networks throughout the world.
This technology was developed in 1972 by Dr. Robert M. Metcalfe, David R.
Boggs, Charles Thacker, Butler W. Lampson, and Xerox (Stanford, Ct.). Stan-
dardization (IEEE 802.3) took place in 1983.
ETHERNET predominantly uses coaxial cables or twisted pair cables as a
transmission medium. Connection to ETHERNET, often already existing in
networks, (LAN, Internet) is easy and the data exchange at a transmission rate
of 10 Mbps or for some couplers/controllers also 100 Mbps is very fast.
ETHERNET has been equipped with higher level communication software in
addition to standard IEEE 802.3, such as TCP/IP (Transmission Control Pro-
tocol / Internet Protocol) to allow communication between different systems.
The TCP/IP protocol stack offers a high degree of reliability for the transmis-
sion of information.
In the ETHERNET based (programmable) fieldbus couplers and controllers
developed by WAGO, usually various application protocols have been imple-
mented on the basis of the TCP/IP stack.
These protocols allow the user to create applications (master applications)
with standardized interfaces and transmit process data via an ETHERNET in-
terface.
In addition to a series of management and diagnostic protocols, fieldbus spe-
cific application protocols are implemented for control of the module data, de-
pending upon the coupler or controller, e. g. MODBUS TCP (UDP),
EtherNet/IP, BACnet/IP, KNXNET/IP, PROFINET, Powerlink, SERCOS III
or others.
Information such as the fieldbus node architecture, network statistics and di-
agnostic information is stored in the ETHERNET (programmable) fieldbus
couplers and controllers and can be viewed as HTML pages via a web browser
(e.g., Microsoft Internet-Explorer, Netscape Navigator) being served from the
HTTP server in the couplers and controllers.
Furthermore, depending on the requirements of the respective industrial appli-
cation, various settings such as selection of protocols, TCP/IP, internal clock
and security configurations can be performed via the web-based management
system. However, you can also load web pages you have created yourself into
the couplers/controllers, which have an internal file system, using FTP.
- Modular I/O System 1
- BACnet/IP Controller 1
- 750-830 1
- 2 • General 2
- Content 3
- 4 • Content 4
- Content • 5 5
- 1 Important Notes 6
- Important Notes • 7 7
- Legal Principles 7
- 8 • Important Notes 8
- 1.3 Symbols 9
- 1.4 Safety Information 10
- 1.5 Font Conventions 11
- 1.6 Number Notation 11
- 1.7 Scope 12
- 1.8 Abbreviation 12
- 2 The WAGO-I/O-SYSTEM 750 13
- 2.2 Technical Data 14
- Side view 19
- Dimensions in mm 19
- 2.3 Manufacturing Number 20
- 2.4 Component Update 21
- 2.6 Mechanical Setup 22
- Mechanical Setup • 23 23
- 2.6.4 Spacing 24
- 2.6.6 Assembly Sequence 26
- Mechanical Setup • 27 27
- 2.6.8 Power Contacts 28
- 2.6.9 Wire Connection 29
- 2.7 Power Supply 30
- 2.7.2 System Supply 31
- 2.7.3 Field Supply 34
- 2.7.5 Supply Example 39
- 2.7.6 Power Supply Unit 40
- 2.8 Grounding 41
- 2.8.2 Grounding Function 42
- 2.8.3 Grounding Protection 43
- 2.9 Shielding (Screening) 44
- 3 Fieldbus Controller 46
- 3.1.2 Compatibility 47
- 3.1.3 Hardware 48
- Hardware 49
- g083002x 51
- Configuration and 52
- Mode switch 53
- Hardware 54
- 3.1.4 Operating System 55
- Operating System 56
- 3.1.5 Process Image 57
- Process Image 58
- Process Image 59
- 3.1.6 Data Exchange 62
- I/O modules 63
- Data Exchange 64
- Data Exchange 65
- MODBUS master 72
- 3.1.6.5.2.1 Word Access 75
- 3.1.6.5.2.2 Bit Access 76
- Fieldbus Node Start-up 78
- Fieldbus Node Start-up 81
- P012913x 95
- WAGO-I/O-SYSTEM 750 100
- WAGO-I/O-SYSTEM 750 103
- MODBUS IP 116
- 3.1.9 LED Signaling 124
- ‘I/O’ LED 126
- 1st flash sequence 126
- Coupler/Controller starts up 126
- Error code 2 -not used 129
- Error code 7 -not used 132
- Error code 8 -not used 132
- Error code 9 - not used 132
- 3.1.10 Fault behavior 135
- Fault behavior 136
- 3.1.11 Technical Data 137
- 4 Fieldbus Communication 163
- 1Netwerkknotene 164
- ETHERNET 167
- ETHERNET 168
- 4.1.3 Network Communication 174
- ETHERNET/IP 175
- 4.2 BACnet/IP 192
- BACnet/IP 193
- Tab. 4-36: BACnet objects 193
- BACnet/IP 194
- DS-RP- A 204
- IA Service User 204
- BACnet device 212
- 4.3 MODBUS Functions 214
- MODBUS Functions 216
- 4.3.5 Internal Variables 231
- 5 I/O Modules 245
- 5.1.3 Analog Input Modules 248
- 5.1.4 Analog Output Modules 250
- 5.1.5 Special Modules 251
- 5.1.6 System Modules 253
- 5.2.1 Digital Input Modules 254
- 5.2.3 Analog Input Modules 260
- 5.2.4 Analog Output Modules 261
- 5.2.5 Specialty Modules 262
- High Byte Low Byte 263
- 5.2.6 System Modules 274
- 6.1 Acked_Transitions 276
- 6.2 Active_COV_Subscriptions 277
- 6.3 Active_Text 277
- 6.4 Alarm_Value 278
- 6.5 APDU_Segment_Timeout 279
- 6.6 APDU_Timeout 279
- 6.8 Archive 280
- 6.9 Backup_Failure_Timeout 280
- 6.10 Change_Of_State_Count 281
- 6.11 Change_Of_State_Time 281
- 6.12 Configuration_Files 282
- 6.13 COV_Increment 282
- 6.14 Database_Revision 282
- 6.15 Data_List 283
- 6.16 Daylight_Savings_Status 283
- 6.17 Deadband 283
- 6.18 Description 284
- 6.19 Device_Address_Binding 284
- 6.20 Device_Type 285
- 6.21 Effective_Period 285
- 6.22 Elapsed_Active_Time 285
- 6.23 Event_Enable 286
- 6.24 Event_State 286
- 6.25 Event_Time_Stamps 286
- 6.26 Exception_Schedule 287
- 6.27 Feedback_Value 288
- 6.28 File_Access_Method 288
- 6.29 File_Size 289
- 6.30 File_Type 289
- 6.31 Firmware_Revision 289
- 6.32 High_Limit 289
- 6.33 Inactive_Text 290
- 6.34 Last_Restore_Time 290
- 6.35 Limit_Enable 291
- 6.39 Location 292
- 6.40 Low_Limit 292
- 6.37 Local_Date 292
- 6.38 Local_Time 292
- 6.42 Max_Pres_Value 293
- 6.43 Max_Segments_Accepted 293
- 6.44 Min_Pres_Value 293
- 6.45 Minimum_Off_Time 294
- 6.46 Minimum_On_Time 294
- 6.47 Model_Name 294
- 6.48 Modification_Date 295
- 6.49 Notification_Class 295
- 6.50 Notify_Type 295
- 6.51 Number_Of_APDU_Retries 295
- 6.52 Object_Identifier 296
- 6.53 Object_List 296
- 6.54 Object_Name 296
- 6.55 Object_Type 297
- 6.56 Out_Of_Service 297
- 6.57 Polarity 298
- 6.58 Present_Value 299
- Present_Value 301
- 6.59 Priority_Array 302
- 6.60 Priority_For_Writing 302
- 6.62 Protocol_Revision 303
- 6.64 Protocol_Version 303
- 6.65 Read_Only 304
- 6.66 Record_Count 304
- 6.67 Reliability 304
- 6.68 Relinquish_Default 305
- 6.69 Resolution 306
- 6.70 Schedule_Default 306
- 6.71 Segmentation_Supported 306
- 6.72 Status_Flags 307
- 6.73 System_Status 308
- 6.74 Time_Delay 308
- 6.77 Units 309
- 6.78 Update_Interval 310
- 6.79 UTC_Offset 310
- 6.80 Vendor_Identifier 310
- 6.81 Vendor_Name 311
- 6.82 Weekly_Schedule 311
- 7.1 PICS Content 312
- 8 Application Examples 313
- 314 • Application Examples 314
- G012913e 315
- 9.1 Foreword 316
- 9.2 Protective Measures 316
- 9.3.2 Device Group 318
- 9.3.3 Unit Categories 319
- 9.3.4 Temperature Classes 320
- 9.4.1 Divisions 323
- 9.4.3 Temperature Classes 324
- 9.5 Identification 325
- 9.5.2 For America 326
- 9.6 Installation Regulations 327
- 9.6.1 ANSI/ISA 12.12.01 328
- Installation Regulations 329
- 9.6.3 ATEX and IEC Ex 330
- Glossary 331
- 332 • Glossary 332
- Glossary • 333 333
- 334 • Glossary 334
- Glossary • 335 335
- 336 • Glossary 336
- Glossary • 337 337
- 338 • Glossary 338
- Glossary • 339 339
- 340 • Glossary 340
- Glossary • 341 341
- 342 • Glossary 342
- Glossary • 343 343
- 344 • Glossary 344
- Glossary • 345 345
- 346 • Glossary 346
- Glossary • 347 347
- 348 • Glossary 348
- Glossary • 349 349
- 350 • Glossary 350
- Glossary • 351 351
- 352 • Glossary 352
- Glossary • 353 353
- 354 • Glossary 354
- Literature List 355
- 356 • Index 356
- Functions · 228, 236 356
- Index • 357 357
- 358 • Index 358
- Index • 359 359
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