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Principles of analog value processing
4.2 Wiring and connecting transducers to analog inputs
S7-300 Module data
Manual, 02/2013, A5E00105505-08
251
Note
Do not interconnect M- with M
ANA
when wiring and connecting 2-wire transducers and
resistance transducers. An equalization current develops at the interconnection of M- with
M
ANA
and corrupts the measured value. This also applies to unused inputs which are
programmed accordingly.
4.2.2 Wiring non-isolated transducers
Non-isolated transducer
Non-isolated transducers are interconnected with local ground potential. Always interconnect
M
ANA
with local ground when using non-isolated transducers.
Local conditions or interference may cause potential differences CMV (static or dynamic)
between locally distributed measuring points. If the maximum CMV value is exceeded,
interconnect the measuring points by means of equipotential conductors.
Wiring non-isolated transducer to electrically isolated AI
When connecting non-isolated transducers to electrically isolated modules, the CPU / IM 153
can be operated in grounded or ungrounded mode.
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Figure 4-3 Wiring non-isolated transducer to electrically isolated AI
- __________ 1
- Preface 3
- Sign posts 5
- Approvals 5
- CE approval 5
- Standards 6
- Recycling and disposal 6
- Note on IT security 6
- Table of contents 10
- Table of contents 11
- General technical data 15
- CE Label 16
- UL certification 16
- +$=/2& 17
- FM approval 18
- ATEX approval 18
- IEC 61131 18
- Marine approval 19
- Use in residential areas 19
- Definition 20
- Pulseshaped disturbance 20
- Additional measures 20
- Sinusoidal disturbance 21
- Shipment of backup batteries 22
- Storing backup batteries 22
- Operating conditions 23
- Use with additional measures 23
- Reducing vibrations 23
- Test voltage 25
- Protection class 25
- Rated operating voltages 25
- 1.7 SIPLUS S7-300 Modules 26
- SIPLUS S7-300 Modules 27
- 1.7 SIPLUS S7-300 Modules 28
- General technical data 29
- Environmental conditions 30
- Power supply modules 31
- ② 24 VDC On/Off switch 32
- ⑤ Strain-relief 32
- Line protection 33
- Block diagram PS 307; 5 A 36
- Power supply modules 37
- ③ Strain-relief 38
- ⑤ 24 VDC On/Off switch 38
- Block diagram PS 307; 10 A 39
- ③ Strain relief 41
- 3.1 Module overview 50
- 3.1 Module overview 51
- 3.1 Module overview 52
- Overview of properties 53
- 3.1.3 Relay output modules 56
- 3.1.4 Digital IO modules 57
- Installation 58
- Commissioning 58
- Reading diagnostics messages 61
- Inductive overvoltage 62
- Extra overvoltage protection 62
- ① with diode 63
- ② with Z diode 63
- ① with varistor 63
- ② with RC element 63
- (6ES7321-1BP00-0AA0) 64
- (6ES7321-1BL00-0AA0) 72
- (6ES7321-1EL00-0AA0) 76
- (6ES7321-1BH02-0AA0) 79
- (6ES7321-1BH10-0AA0) 83
- ④ Wire-break detection 86
- 3.11.1 Isochronous mode 90
- Order number: 98
- Digital modules 100
- 7EH00-0AB0) 100
- Digital modules 101
- Programming 102
- Hardware interrupt 105
- Introduction 105
- Enabling interrupts 105
- Diagnostic interrupt 105
- Hardware interrupt lost 106
- (6ES7321-1BH50-0AA0) 107
- (6ES7321-1CH00-0AA0) 110
- (6ES7321-1CH20-0AA0) 113
- ① Channel number 114
- ② Status display - green 114
- ③ Backplane bus interface 114
- (6ES7321-1FH00-0AA0) 117
- (6ES7321-1FF01-0AA0) 120
- (6ES7321-1FF10-0AA0) 124
- (6ES7322-1BP00-0AA0) 127
- 40-pin terminal block 128
- STEP 7 integration 131
- GSD/GSDML files 131
- PROFIBUS 132
- PROFINET 132
- (6ES7322-1BP50-0AA0) 135
- Recommended fuse 139
- (6ES7322-1BL00-0AA0) 143
- (6ES7322-1FL00-0AA0) 147
- ① Channel numbers 148
- Terminal assignment 149
- (6ES7322-1BH01-0AA0) 151
- (6ES7322-8BH10-0AB0) 155
- Using the module 156
- Redundant use of the module 156
- ① Status displays - green 157
- ② Channel numbers 157
- ③ Channel status 157
- ④ Channel fault 157
- ⑤ Backplane bus interface 157
- Technical specifications 158
- See also 160
- Group diagnostics 161
- Load voltage L+ missing 161
- Fuse blown 161
- Preconditions / Requirements 163
- Firmware update 163
- Properties 164
- (6ES7322-1BH10-0AA0) 165
- (6ES7322-5GH00-0AB0) 169
- ② Status LEDs - green 170
- Status displays 173
- Diagnostics, troubleshooting 173
- (6ES7322-1FH00-0AA0) 175
- (6ES7322-1BF01-0AA0) 179
- ③ Wiring diagram 184
- Redundant load control 185
- Reaction to power failure 191
- Diagnostics interrupt 192
- (6ES7322-1CF00-0AA0) 193
- (6ES7322-1FF01-0AA0) 197
- ④ Optotriac 198
- (6ES7322-5FF00-0AB0) 201
- ① Group error display - red 202
- ② Backplane bus interface 202
- ③ Channel number 202
- ④ Status display - green 202
- (6ES7322-1HH01-0AA0) 208
- (6ES7322-1HF01-0AA0) 212
- (6ES7322-5HF00-0AB0) 217
- ① Error LED - red 218
- ② Channel number 218
- ③ Status display - green 218
- ④ Backplane bus interface 218
- (6ES7322-1HF10-0AA0) 226
- ② Status displays - green 227
- (6ES7323-1BL00-0AA0) 232
- (6ES7323-1BH01-0AA0) 236
- Order number 240
- Structure of data record 1 245
- Readback of outputs 246
- 4.1 Overview 247
- Cables for analog signals 248
- S7-300 Module data 249
- S7-300 Module data 250
- Non-isolated transducer 251
- Thermocouple selection 258
- Thermocouple structure 259
- Principles of analog modules 273
- Resolution < 16 bits 274
- Example 274
- Measured value resolution 275
- Two procedures 295
- This chapter 298
- Operational limit 301
- Basic error limit 301
- Using smoothing 303
- Smoothing principle 303
- Examples 304
- Settling time 306
- Response time 306
- Programming tools 307
- Description of the 313
- blocks 313
- Analog modules 315
- 6.2 Module overview 317
- 6.2 Module overview 318
- Analog modules 319
- 6.2 Module overview 319
- 6.2.2 Analog output modules 320
- 6.2.3 Analog I/O modules 321
- Resolution 322
- Diagnostics 322
- Hardware interrupts 322
- ① Voltage measurement 324
- ③ Electrical isolation 324
- ⑤ Equipotential bonding 324
- Measurement types and ranges 329
- Channel groups 330
- Unused channels 331
- Line continuity check 331
- ② Equipotential bonding 334
- ① 2-wire transducer 335
- ② 4-wire transducer 335
- ③ Equipotential bonding 335
- Parameter 340
- Modes of operation 341
- 8-channel operating mode 341
- 4-channel operating mode 342
- Module cycle time 342
- End of cycle interrupt 344
- (6ES7331-7HF0x-0AB0) 345
- Wiring: Voltage measurement 346
- Measuring range modules 351
- Measurement types and 353
- 6.5.3 Isochronous mode 354
- Further information 355
- Using PTC resistors 368
- ZLUHWUDQVGXFHU 372
- ① 4-wire connection 373
- All channels deactivated 385
- Measuring range module 396
- Parameters 398
- Wiring: 3-wire connection 402
- Wiring: 2-wire connection 402
- Short-circuit to M or L 431
- (6ES7331-7PE10-0AB0) 433
- ① Applied input voltage 437
- Adjustable parameters 445
- Requirements 453
- Options 459
- User calibration 459
- ① New calibration values 462
- (6ES7332-5HF00-0AB0) 463
- Wiring: Current output 465
- Short-circuit test 470
- (6ES7332-7ND02-0AB0) 471
- ① Backplane bus interface 472
- ② Electrical isolation 472
- ④ Functional ground 472
- Output ranges 477
- 6.13.3 Isochronous mode 479
- Substitute values 480
- (6ES7332-5HD01-0AB0) 481
- Output ranges for SM 332; 488
- AO 4 x 12 Bit 488
- (6ES7332-5HB01-0AB0) 490
- Wiring for current output 492
- (6ES7334-0CE01-0AA0) 499
- Input addresses 505
- Output addresses 505
- (6ES7334-0KE00-0AB0) 507
- Input defaults 514
- Measuring ranges 515
- Other signal modules 517
- Configuration in 518
- ② Function selector switch 519
- ④ Status displays - green 519
- Modules which occupy 2 slots 521
- ① Front view 522
- ② Rear view 522
- ③ Address selector switch 522
- (6ES7338-4BC01-0AB0) 523
- Supported encoder types 524
- Supported data formats 524
- 7.4.1 Isochronous mode 525
- ② Connection to CPU ground 526
- ③ Twisted-pair cables 526
- Other signal modules 527
- Scaling, places 528
- 7.4.3.4 Freeze function 530
- Reading data areas 533
- Reading diagnostic messages 534
- Interface modules 541
- Status and error LEDs 542
- Front view 543
- Technical data 543
- ① In rack 1 547
- ② In rack 0 547
- Editable parameters 549
- SFCs for programming 549
- Further references 550
- Temperature measurement 583
- Temperature coefficient 584
- (6ES7331-7NF10-0AB0) 585
- 586
- (QGRIF\FOHLQWHUUXSWHQDEOH 586
- /LPLWLQWHUUXSWHQDEOH 586
- %LWQXPEHU 586
- Settings of input smoothing 591
- Smoothing 597
- External reference junction 598
- Output type and output range 604
- IO modules 606
- Measuring methods and ranges 607
- Bytes 2 to 7 623
- Bytes 8 to 10 623
- Dimensional drawings 625
- Dimensional drawings 627
- 628
- Mounting rail 530 mm 629
- Mounting rail 830 mm 629
- Mounting rail 2000 mm 630
- ① Explosion-proof partition 631
- ② S7-300 module 631
- ③ active bus module 631
- C.1.1 Bus modules 632
- ① Bus modules 632
- PS 307 2 A 633
- IM 361 637
- IM 365 638
- 639
- 64-channel signal module 640
- Shield connection element 641
- Spare parts 643
- E.1 Definition of ESD 647
- Electrostatic charging 648
- Ensure sufficient grounding 649
- Avoid direct contact 649
- Service & support 651
- Training center 652
- List of abbreviations 653
- G.1 List of abbreviations 654
- Glossary 655
- Glossary 657
- Total current 664
- User program 664
- Wirebreak 664
- Index 667
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