II - DCE FEL ČVUT v Praze

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Mechanical Configuration of an Automation System with SIMATIC S7 Ex Modules Combined use of Ex and non-Ex I/O modules Partition Load current circuit Connecting Ex I/O modules 1-4 Combined use is possible, however, the minimum thread measure between conductive parts of Ex and non-Ex assemblies must be maintained in all cases. As a rule, you must install spacer modules DM 370 between Ex and non-Ex modules. You must ensure strict separation of intrinsically safe and non-intrinsically safe conductors in the wiring system. They must be routed in separate cable ducts. Mixed operation can therefore not be recommended. The Ex partition must be fitted to achieve the minimum thread measure of 50 mm between Ex and non-Ex modules when using the bus module of the active backplane bus. The Ex sensors and Ex actuators are powered either via the Ex modules or via their own intrinsically safe power supply modules (e.g. 4-wire transducers). The Ex I/O modules receive their power supply via the backplane bus. The 24V DC load voltage input of the front connector is required for the power supply of the Ex sensors and the Ex actuators on the majority of modules. The Ex I/O modules are configured in the same way as standard modules from left to right. Connect the Ex sensors and Ex actuators as well as the load voltage supply with the aid of the line chamber (see Section 1.2) to the process connector which you then plug into the module. Note If necessary, safety assessment of this intrinsically safe power circuit should be carried out by an expert before a sensor or actuator is connected to an Ex module. I/O Modules with Intrinsically-Safe Signals C79000-G7076-C152-04
Replacing Ex I/O modules Mechanical Configuration of an Automation System with SIMATIC S7 Ex Modules I/O Modules with Intrinsically-Safe Signals C79000-G7076-C152-04 After being plugged in for the first time, the front connector adopts the module type coding set at the factory. This ensures that there can be no confusion with another type of module when replacing modules as the front connector can then no longer be unclipped, thus fulfilling explosion protection requirements. When replacing Ex modules, carry out the necessary steps in the order described below: Removal 1. Disconnect L+ load voltage supply 2. Unplug front connector 3. Remove module Installation 1. Install module 2. Plug in front connector 3. Connect L+ load voltage supply 1-5
Page 1 and 2: SIMATIC S7-300, M7-300, ET 200M Aut
Page 3 and 4: Preface Purpose of the manual Conte
Page 5 and 6: Usage and configuration Usage and c
Page 7 and 8: Contents Preface . . . . . . . . .
Page 9 and 10: 4.6 HART Analog Input Module SM 331
Page 11 and 12: 3-13 Connection of loads to a curre
Page 13 and 14: 3-11 Representation of the digitize
Page 15 and 16: Mechanical Configuration of an Auto
Page 17: Minimum thread measure Mechanical C
Page 21 and 22: Wire end ferrule Fig. 1-2 Installin
Page 23 and 24: 1.3 Configuration of an S7-300 with
Page 25 and 26: 1.4 Configuration of an M7-300 with
Page 27 and 28: 1.6 Equipotential Bonding in System
Page 29 and 30: Main equipotential bonding Addition
Page 35 and 36: 1.7.4 Selecting Cables and Lines in
Page 37 and 38: Type designations for lines in acco
Page 39 and 40: Table 1-4 Siemens cables for measur
Page 43 and 44: Shielding of intrinsically safe sig
Page 45 and 46: 1.8.3 Measures to Counteract Interf
Page 55 and 56: Table 1-7 Safety measures Mechanica
Page 57 and 58: Housing Cables Terminals Protective
Page 59 and 60: Table 1-8 Working on systems to typ
Page 61 and 62: SIMATIC S7 Ex Digital Modules In th
Page 63 and 64: Wiring diagram SM 321 DI 4 x NAMUR
Page 65 and 66: Digital input SM 321; DI 4 x NAMUR
Page 67 and 68: Parameterization Default settings C
Page 69 and 70:
Input delay Diagnostics Parameteriz
Page 71 and 72:
Errors and corrective measures I/O
Page 73 and 74:
Influence of supply voltage and ope
Page 75 and 76:
Wiring diagram Notes on intrinsical
Page 77 and 78:
Digital output SM 322; DO 4 x 24V/1
Page 79 and 80:
Parameterization Default settings C
Page 81 and 82:
Diagnostic evaluation Diagnostics o
Page 83 and 84:
Interrupts Parameterizing interrupt
Page 85 and 86:
Block diagram S7-300 Backplane bus
Page 87 and 88:
Safety data (refer to Certificate o
Page 89 and 90:
SIMATIC S7 Ex Analog Modules In thi
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3.1.2 Analog Representation for Mea
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Current measuring ranges I/O Module
Page 95 and 96:
Temperature range, standard, Pt 100
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Temperature range, standard, Ni 100
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DIN IEC 584 Temperature range type
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Temperature range type E I/O Module
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Temperature range type L I/O Module
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Temperature range type N I/O Module
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Temperature range type S I/O Module
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3.1.3 Analog Value Representation f
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Abbreviations Insulated measured va
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3.3 Connection of Thermocouples, Vo
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Internal compensation Thermocouple
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Thermocouples with direct looping-i
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Thermocouples with internal compens
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3.3.3 Connection of Resistance Ther
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I/O Modules with Intrinsically-Safe
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Connecting loads to a current outpu
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Page 129 and 130:
3.6.3 Parameters of Analog Modules
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Table 3-22 Parameters of the analog
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3.6.4 Diagnostics of Analog Modules
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Table 3-25 Diagnostic messages of a
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Faults and corrective measures I/O
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3.6.6 Characteristics of Analog Mod
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Influence of faults I/O Modules wit
Page 143 and 144:
Wiring diagram SM 33 1 AI 8 xTC / 4
Page 145 and 146:
Special feature of resistant measur
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Analog Input SM 331; AI 8 x TC/4 x
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Error limits of analog inputs for t
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3.8 Analog Input Module SM 331; AI
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Parameterization Default settings C
Page 155 and 156:
Analog value formation Measuring pr
Page 157 and 158:
Wiring diagram SM 3 32 AO 4 x 0/4..
Page 159 and 160:
Analog output Output ranges I/O Mod
Page 161 and 162:
Interference rejection, error limit
Page 163 and 164:
SIMATIC S7 HART Analog Modules In t
Page 165 and 166:
4.2 Introduction to HART Introducti
Page 167 and 168:
Examples of HART parameters Example
Page 169 and 170:
4.3 Guidelines for Installation, St
Page 171 and 172:
Modifying the parameters of the fie
Page 173 and 174:
4.4 Parameters of HART Analog Modul
Page 175 and 176:
4.5 Diagnostics and Interrupts of H
Page 177 and 178:
4.6 HART Analog Input Module SM 331
Page 179 and 180:
Wiring diagram SM 3 31 AI 2 x 0/4..
Page 181 and 182:
Analog value formation Measuring pr
Page 183 and 184:
Default settings Wire break monitor
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SM 332; AO 2 x 0/4...20mA HART Dime
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4.8 Data Record Interface and User
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Structure of the parameter data rec
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Diagnostic data: data record 1 Note
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Structure of command data record No
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Table 4-13 HART group error display
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Structure of the diagnostic data re
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4.8.6 User Data Interface Input Are
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Certificates of Conformity In this
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Page 205 and 206:
A.1.1 ASEV Certificate/Switzerland
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Page 209 and 210:
A.2 Certificate of Conformity for D
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Page 213 and 214:
Page 215 and 216:
A.3 Certificate of Conformity for D
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Page 221 and 222:
Page 223 and 224:
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Page 239 and 240:
Page 241 and 242:
A.7 KEMA Certificate of Conformity
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Page 245 and 246:
A.7.2 EC Declaration of Conformity
Page 247 and 248:
Page 249 and 250:
A.8.1 EC Declaration of Conformity
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Safety Standards, FM Approval In th
Page 253 and 254:
FM approval I/O Modules with Intrin
Page 255 and 256:
Bibliography In this appendix I/O M
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Glossary A AS ATEX 100a B Backplane
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D Diagnostic interrupt Diagnostic b
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FM Frequency shift keying FSK G Gro
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HART transfer area HCF I Interrupt
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O OB Organization blocks P Paramete
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R Reference potential Response time
Page 269 and 270:
Index Numbers 2-wire transducer, 3-
Page 271 and 272:
DP master class 2, default paramete
Page 273 and 274:
Interference frequency suppression,
Page 275 and 276:
Range of measurement parameter bloc
Page 277 and 278:
SM 332; AO 4 x 0/4...20 mA, 3-1 bas
Page 279 and 280:
Siemens AG A&D AS E81 Oestliche Rhe
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II - DCE FEL ČVUT v Praze

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