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Digital modules
3.15 Digital input module SM 321; DI 16 x DC 48-125 V; (6ES7321-1CH20-0AA0)
S7-300 Module data
114 Manual, 02/2013, A5E00105505-08
Wiring and block diagram of SM 321; DI 16 x DC 48-125 V
0
0
0
0
9
9
① Channel number
② Status display - green
③ Backplane bus interface
- __________ 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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