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Use in Hazardous Environments • 323
Classifications Meeting the NEC 500
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
9.4 Classifications Meeting the NEC 500
The following classifications as defined in article 500 and 505 of the National
Electric Code (NEC) are valid for North America.
9.4.1 Divisions
The "Divisions" describe the degree of probability of whatever type of
dangerous situation occurring. Here the following assignments apply:
Tab. 9-6: Divisions
Explosion endangered areas due to combustible gases, fumes, mist and dust:
Division 1 Encompasses areas in which explosive atmospheres are to be expected
occasionally (> 10 h ≤ 1000 h /year) as well as continuously and long-term
(> 1000 h /year).
Division 2 Encompasses areas in which explosive atmospheres can be expected rarely
and short-term (>0 h ≤ 10 h /year).
9.4.2 Explosion Protection Groups
Electrical components for explosion endangered areas are subdivided in three
danger categories:
Tab. 9-7: Explosion Protection Groups
Danger category Sub-group
Class I (gases and fumes) Group A (Acetylene)
Group B (Hydrogen)
Group C (Ethylene)
Group D (Methane)
Class II (dust) Group E (Metal dust)
Group F (Coal dust)
Group G (Flour, starch and cereal dust)
Class III (fibers) No sub-groups
- 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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