Siemens S7-300 manuali

Siemens S7-300 Manuale Utente (244 pagine)

Marchio: Siemens | Categoria: no | Dimensione: 1.84 MB |

Inglese

Indice

SIMATIC

1

CPU 31xC and CPU 31x

1

Technical data

1

Preface

3

Approvals

4

CE label

4

C tick mark

4

Standards

4

Documentation classification

5

Recycling and Disposal

6

Table of contents

10

Table of contents

11

Overview

13

Selecting and configuring

13

(1) Analog I/Os

18

Mode selector switch

19

Power supply connection

19

Differences between the CPUs

19

MAC-ADD.:

25

X1-X2-X3

25

X4-X5-X6

25

Communication

29

3.1.2 PROFIBUS DP

30

3.1.3 PROFINET (PN)

31

3.1.4 Point to Point (PtP)

33

3.2 Communication services

34

3.2.2 PG communication

35

3.2.3 OP communication

35

3.2.5 S7 communication

36

Properties

37

Reduction ratio

37

Send and receive conditions

37

3.2.7 Routing

38

Communication

39

3.2 Communication services

39

Number of routed connections

40

Requirements

41

Real installation

42

Configuration in STEP 7

42

3.2.8 PtP communication

43

3.2.9 Data consistency

44

Objectives in PROFINET

45

What is PROFINET IO?

45

Further Information

46

3.2.10.1 PROFINET IO System

47

3.2 Communication services

48

System Description PROFINET

48

Detailed Information

50

Chapter Content

51

Data exchange

53

Disconnecting

53

Communication interruptions

53

3.3 S7 connections

54

Connection points

55

Transition point

55

3.3 S7 connections

56

3.3 S7 connections

57

Example of a CPU 314C-2 DP

59

3.4 DPV1

60

3.4 DPV1

62

4.1.1 CPU memory areas

63

System memory

64

Retentive data in RAM

65

Memory concept

66

I/O process image

67

Memory concept

69

Local data

70

Properties of an MMC

71

MMC copy protection

72

Useful life of an MMC

72

4.2 Memory functions

73

4.2.3.2 Uploading blocks

74

Uploading blocks

74

4.2 Memory functions

75

Restart (warm start)

76

4.2.5 Recipes

77

4.2 Memory functions

78

Processing sequence

79

Function principle

81

5.2 Cycle time

84

Cycle and reaction times

85

5.2 Cycle time

85

Extending the cycle time

86

Process image update

87

5.2 Cycle time

88

5.2.3 Different cycle times

90

5.2.4 Communication load

91

Runtimes

93

Extending the OB1 cycle time

93

Tips and notes

95

5.3 Response time

96

5.3 Response time

97

Calculation

100

See also

100

Reducing the response time

100

Introduction

101

Cycle time

101

Response time

102

5.5 Interrupt response time

103

Signal modules

104

Process interrupt processing

105

Reproducibility

105

5.6 Sample calculations

106

Installation

107

User program

107

Calculating the cycle time

107

Cycle and reaction times

108

5.6 Sample calculations

108

Technical data of CPU 31xC

111

6.1 General technical data

112

6.2 CPU 312C

113

6.2 CPU 312C

114

Technical data of CPU 31xC

115

6.2 CPU 312C

115

Technological

117

Functions

117

Technological Functions

117

6.3 CPU 313C

118

6.3 CPU 313C

119

6.3 CPU 313C

120

Reference

123

6.6.2 Analog I/O

144

Measurement principle

145

Selection in STEP 7

146

(Software filter)

146

1 averaged measured value

147

Inputs not connected

148

Outputs not connected

148

6.6.3 Configuration

149

Parameters of standard DO

151

Parameters of standard AI

151

Parameters of standard AO

152

6.6.4 Interrupts

155

6.6.5 Diagnostics

156

6.6.6 Digital inputs

156

6.6.7 Digital outputs

158

6.6.8 Analog inputs

161

6.6.9 Analog outputs

163

Technical data of CPU 31x

167

7.1 General technical data

168

7.2 CPU 312

169

7.2 CPU 312

170

Technical data of CPU 31x

171

7.2 CPU 312

171

7.3 CPU 314

174

7.3 CPU 314

175

7.3 CPU 314

176

7.4 CPU 315-2 DP

179

7.4 CPU 315-2 DP

180

7.4 CPU 315-2 DP

181

7.5 CPU 315-2 PN/DP

185

7.5 CPU 315-2 PN/DP

186

7.5 CPU 315-2 PN/DP

187

7.6 CPU 317-2 DP

192

7.6 CPU 317-2 DP

193

7.6 CPU 317-2 DP

194

7.7 CPU 317-2 PN/DP

199

7.7 CPU 317-2 PN/DP

200

7.7 CPU 317-2 PN/DP

201

Appendix

207

SFC 20 "BLKMOV"

209

SFC 54 "RD_DPARM"

209

New response by the CPU

210

Appendix

211

Replacing a CPU 31xC/31x

212

Consistent data

213

A.1.10 PG/OP functions

214

CPU 317

215

Procedure

216

Glossary

217

See PROFINET CBA

218

Glossary

219

See Communication processor

219

Data, temporary

220

Default Router

220

Determinism

220

Device Name

220

See System diagnostics

221

See Switch

224

See Fast Ethernet

224

See Slave

227

See SIMATIC NCM PC

227

See Organization blocks

228

See SIMATIC PC Station

229

See Programming device

229

See PROFIBUS International

229

PROFINET

231

PROFINET ASIC

231

PROFINET CBA

231

PROFINET Component

231

PROFINET Device

231

See PROFINET Device

233

See Ground

233

See Master

235

See Proxy

236

See Timers

237

See Interrupt, time-of-day

237

See Operating system

238

See STEP 7

238

Index

242

Index

243

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