Siemens S7-200PLC manuali

Siemens S7-200PLC Manuale Utente (21 pagine)

Marchio: Siemens | Categoria: Networking | Dimensione: 1.71 MB |

Inglese

Indice

Polling Data Registers from

1

Siemens S7-200 PLC Series

1

Table of Contents

2

1. Objective

3

2. Hardware requirements

3

3. Software requirements

5

4. PLC protocol compatibility

5

5. Implementation steps

6

RS422, RS485

10

6. Step 4. Monitoring tags

15

8.2 Memory types

18

8.3 Modifiers

18

8.4 Examples

19

8.5 Bit access modifier

19

8.6 Status register

19

9. Appendix 2 – PPI cables

20

Revision history

21

1.0 22/06/12 First issue

21

Document build number: 26

21

Siemens S7-200PLC Specifiche (504 pagine)

Marchio: Siemens | Categoria: Networking | Dimensione: 2.18 MB |

Inglese

Indice

Qualified Personnel

2

Correct Usage

2

Trademarks

2

Safety Guidelines

2

Important Notes

3

Scope of the Manual

4

Agency Approvals

4

Related Information

4

How to Use This Manual

5

Additional Assistance

5

Contents

10

Equipment Requirements

12

S7-200 CPU

14

Expansion Modules

15

Installing an S7-200 PLC

17

Installation Configuration

18

Standard Rail Requirements

20

Panel-Mounting Dimensions

20

General Guidelines

25

Connector

27

Protecting DC Transistors

32

2.5 Power Considerations

34

Programming System

37

3.1 Overview

38

Pre-Installation Instructions

39

Designing the Safety Circuits

49

Opn_Drn_PB

51

Drain_Sol

51

Statement List Editor

52

Before Load After Load

53

Before And After And

53

Before Or After Or

53

Ladder Logic Editor

54

Function Block Diagram Editor

55

Instructions

56

Overloaded Instructions

61

Organizing the Program

64

MAIN PROGRAM OB1

67

SUBROUTINE 0

67

INTERRUPT ROUTINE 0

67

Reading the Digital Inputs

68

Executing the Program

69

Interrupting the Scan Cycle

70

Immediate I/O

70

STOP mode

72

RUN mode

72

Restricting Access to the CPU

73

Configuring the CPU Password

74

Forcing Specific Values

80

Responding to Fatal Errors

83

Representation of Numbers

88

[timer number]

91

[counter number]

92

[starting byte address]

93

[accumulator number]

94

Using Constant Values

96

Creating a Pointer

97

Modifying Pointers

98

Loses Power

101

Retaining Memory on Power On

101

Number of

103

C79000-G7076-C233-01

105

Chapter Overview

109

Module 0 Module 1 Module 3

111

6.3 Pulse Catch

113

6.5 Analog Input Filter

117

6.6 High-Speed I/O

118

High-Speed Pulse Output

120

6.7 Analog Adjustments

121

Network Connector

124

STEP 7-Micro/WIN 32 supports

125

Communications Setup

128

7.4 Communicating With Modems

138

Configure

141

Modem Setup

142

7.5 Network Overview

149

PPI Protocol

151

MPI Protocol

151

PROFIBUS Protocol

152

7.6 Network Components

153

Network Connectors

154

Cable for a PROFIBUS Network

155

Network Repeaters

156

7.8 Network Performance

163

Token Rotation

164

Sending Messages

165

Token Rotation Time

166

Token Rotation Comparison

167

Programming

170

is the title

171

on-delay 100 ms

175

SIMATIC Instructions

177

Standard Contacts

178

Immediate Contacts

179

Positive, Negative Transition

180

Contact Examples

181

Output Immediate

182

Set, Reset (N Bits)

183

No Operation

184

Output Examples

185

Compare Byte

186

Compare Integer

187

Compare Double Word

188

Compare Real

189

Comparison Contact Examples

190

1-Millisecond Resolution

194

10-Millisecond Resolution

194

100-Millisecond Resolution

194

On-Delay Timer Example

196

Off-Delay Timer Example

198

Counter Examples

201

Using the High-Speed Counter

204

[high-speed counter number]

212

Control Byte

214

Status Byte

215

HSC Interrupts

216

High-Speed Counter Example

223

Pulse Output

225

PWM Operation

226

PTO Operation

227

PTO/PWM Control Registers

232

PWM Initialization

235

Math Examples

253

Increment, Decrement Example

256

Add Real, Subtract Real

257

Multiply Real, Divide Real

258

PID Loop

260

PID Algorithm

261

Proportional Term

263

Integral Term

263

Differential Term

264

Selection of Loop Control

264

Variables and Ranges

267

Error Conditions

269

Loop Table

269

PID Program Example

270

Square Root

274

Block Move Example

277

Swap Bytes

278

Move and Swap Examples

278

Memory Fill

279

Fill Example

279

Add to Table

280

Add to Table Example

281

Table Find

282

Table Find Example

283

First-In-First-Out

284

First-In-First-Out Example

284

Last-In-First-Out

285

Last-In-First-Out Example

285

Invert Example

291

shifted

292

Shift and Rotate Examples

298

Shift Register Bit

299

Shift Register Bit Example

301

Double Integer to Real

302

Truncate

303

Double Integer to Integer

304

Integer to Double Integer

304

Byte to Integer

305

Integer to Byte

305

Convert Example

306

Decode, Encode Examples

308

Segment Example

310

ASCII to HEX, HEX to ASCII

311

ASCII to HEX Example

311

Integer to ASCII

312

Double Integer to ASCII

314

Real to ASCII

315

Watchdog Reset

318

Stop, End, and WDR Example

319

Jump to Label, Label

320

Jump to Label Example

320

For, Next

326

For/Next Example

328

Sequence Control Relay

329

Restrictions

330

SCR Example

331

Divergence Control

333

Convergence Control

335

Return from Interrupt

343

Interrupt Routines

343

Interrupt Use Guidelines

343

System Support for Interrupt

343

Communication Port Interrupts

345

I/O Interrupts

345

Time-Based Interrupts

347

Interrupt Examples

350

Network Read, Network Write

352

Transmit, Receive

358

Understanding Freeport Mode

359

Freeport Initialization

360

Receive and Transmit Example

365

And Load

368

Logic Push

368

Logic Read

368

Logic Pop

369

Load Stack

369

Logic Stack Operations

369

Logic Stack Example

370

IEC 1131-3 Instructions

373

10.1 IEC Bit Logic

374

Set, Reset

376

Set Dominant Bistable

378

Reset Dominant Bistable

378

10.2 IEC Compare Instructions

379

Compare Not Equal

380

Compare Less Than

380

Compare Less Than or Equal

381

Compare Greater Than

381

Compare Greater Than or Equal

382

10.3 IEC Timer Instructions

383

Off-Delay Timer

384

Pulse Timer

384

Pulse Timer Example

386

10.4 IEC Counter Instructions

387

Down Counter

388

Up/Down Counter

389

Counter Example

390

10.5 IEC Math Instructions

391

Multiply, Divide

392

Increment, Decrement

394

10.6 IEC Move Instructions

396

Block Move

397

Move Examples

397

10.7 IEC Logic Instructions

398

Real To Double Integer

406

Byte To Integer

407

Conversion Example

408

S7-200 Specifications

411

Technical Specifications

413

Relay Electrical Service Life

415

Proximity Sensor (Bero)

435

A.8 Optional Cartridges

438

A.9 I/O Expansion Cable

439

A.10 PC/PPI Cable

440

Error Codes

443

B.3 Compile Rule Violations

446

Special Memory (SM) Bits

447

SMB1: Status Bits

448

SMB3: Freeport Parity Error

448

SMB4: Queue Overflow

449

SMB5: I/O Status

449

SMB6: CPU ID Register

450

SMB7: Reserved

450

SMW22 to SMW26: Scan Times

452

SMB98 and SMB99

460

S7-200 Troubleshooting Guide

463

S7-200 Order Numbers

465

Execution Times

468

100 ms

479

6ES7298-8FA20-8BH0-01

503

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