Siemens Simatic RTU303xC Series, Simatic RTU3030C, Simatic RTU3031C Operating Instructions Manual

SIMATIC

TeleControl - RTU RTU303xC

Operating Instructions

RTU3030C RTU3031C

06/2019

C79000

Preface

Application and functions

LEDs, connectors, buttons, card slots

Connecting up, installation, commissioning

Configuration (WBM)

Program blocks

Diagnostics and maintenance

Technical data

Approvals

Dimension drawings

Accessories

Syslog Messages

Documentation references

RTU303xC

-G8976-C382-06

Siemens AG Division Process Industries and Drives Postfach 48 48 90026 NÜRNBERG GERMANY

C79000-G8976-C382-06

Ⓟ

DANGER

indicates that death or severe personal injury will result if proper precautions are not taken.

WARNING

indicates that death or severe personal injury may result if proper precautions are not taken.

CAUTION

indicates that minor personal injury can result if proper precautions are not taken.

NOTICE

indicates that property damage can result if proper precautions are not taken.

WARNING

Siemens products may only be used for the applications described in the catalog and in the relevant technical

ambient conditions must be complied with. The information in the relevant documentation must be observed.

Legal information

Warning notice system

This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.

If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.

Qualified Personnel

The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems.

Proper use of Siemens products

Note the following:

documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible

Trademarks

All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

Disclaimer of Liability

We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.

05/2019 Subject to change

Preface

CAUTION

To prevent injury, read the manual before use.

Validity of this manual

This manual is valid for the products: SIMATIC RTU3030C

Article number: 6NH3112-3BA00-0XX0 Hardware product version 2 Firmware version 3.1

The RTU is used to monitor and control outlying stations that are geographically distributed and not connected to a power supply network. The RTU can store process data and transfer it via mobile wireless or via the LAN interface and an external router to a master station.

RTU303xC Operating Instructions, 06/2019, C79000-G8976-C382-06

Figure 1 SIMATIC RTU3030C

SIMATIC RTU3031C Article number: 6NH3112-3BB00-0XX0 Hardware product version 2 Firmware version 3.1

Preface

The RTU3031C also has 4 additional digital outputs and supports GPS positioning and time synchronization.

Figure 2 SIMATIC RTU3031C

You will find the the article number of the device on the front right of the housing You will find the hardware product version of the device as a placeholder "X" printed on the

right side of the housing. Hardware version 2 is designated by "1 X 3 4" You will find the the MAC address of the device on the front right of the housing You will find the IMEI (International Mobile Equipment Identity) on the right had-side of the

housing.

Purpose of the manual

This manual describes the properties of this device and shows application examples.

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4 Operating Instructions, 06/2019, C79000-G8976-C382-06

Preface

The manaul supports you when installing, connecting up and commissioning the device. The required configuration steps for the device are described. You will also find instructions for operation and information about the diagnostics options.

Required experience

To install, commission and operate the device, you require experience in the following areas:

● General electrical engineering

● Automation engineering

● Data transfer via mobile wireless networks and Internet

Abbreviations/acronyms

This manual often uses the following abbreviations/acronyms:

●

RTU The name "RTU" (Remote Terminal Unit) is used instead of the full product names

"RTU3010C", "RTU3030C" and "RTU3031C".

●

RTU30x0C Used as a substitute for the complete product names of the "RTU3010C" and

"RTU3030C" devices.

●

RTU303xC Used as a substitute for the complete product names of the "RTU3030C" and

"RTU3031C" devices.

●

HW2 Stands for devices with hardware product version 2.

●

WBM "WBM" the acronym for the "Web Based Management" of the Web pages of the RTU for

configuration and diagnostics data.

●

Extension board The term "extension board" is used instead of the full product name "EXTENSION

BOARD HART / RS485".

●

TCSB Acronym for the control center software "TeleControl Server Basic" which is installed on a

PC, the telecontrol server.

New in this release

● Connection from up to 8 Hart devices through the expansion card "EXTENSION BOARD HART / RS485"

● Remote access for SIMATIC PDM to HART and Modbus devices via HART-IP or Modbus TCP

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Preface

Note Open source software

Read the license conditions for open source software carefully before using the product.

● Central logging of security and audit events; sending of events via the Syslog protocol.

● DNP3 redundancy

● Revision of function block "Silo volume calculation"

● Increase in configuration limits for function blocks

● Editorial revision

For the product notices on the Internet see: Link: (https://support.industry.siemens.com/cs/ww/en/ps/21767/pm)

Replaced edition

Edition 07/2018

Current manual release on the Internet

You will also find the current version of this manual on the Internet pages of Siemens Industry Online Support:

Link: (https://support.industry.siemens.com/cs/ww/en/ps/21767/man)

Cross references

In this manual there are often cross references to other sections. To be able to return to the initial page after jumping to a cross reference, some PDF readers

support the command <Alt>+<left arrow>.

Sources of information and other documentation

You will find an overview of further reading and references in the Appendix of this manual.

License conditions

You will find the license conditions as a loadable file on the WBM pages of the device. You will find the description of opening and loading license conditions in section General functions of the WBM (Page 94).

You will find the packed file with the license conditions for Open Source software under the following name:

● OSS_RTU30xxC_86.zip

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Preface

Firmware

The firmware is signed and encrypted. This ensures that only firmware created by Siemens can be downloaded to the device.

Security information

Siemens provides products and solutions with industrial security functions that support the secure operation of plants, systems, machines and networks.

In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial security concept. Siemens’ products and solutions constitute one element of such a concept.

Customers are responsible for preventing unauthorized access to their plants, systems, machines and networks. Such systems, machines and components should only be connected to an enterprise network or the internet if and to the extent such a connection is necessary and only when appropriate security measures (e.g. firewalls and/or network segmentation) are in place.

For additional information on industrial security measures that may be implemented, please visit Link: (http://www.siemens.com/industrialsecurity)

Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customers’ exposure to cyber threats.

To stay informed about product updates, subscribe to the Siemens Industrial Security RSS Feed under Link: (http://www.siemens.com/industrialsecurity)

Recycling and disposal

The product is low in pollutants, can be recycled and meets the requirements of the WEEE directive 2012/19/EU "Waste Electrical and Electronic Equipment".

Do not dispose of the product at public disposal sites. For environmentally friendly recycling and the disposal of your old device contact a certified disposal company for electronic scrap or your Siemens contact.

Keep to the local regulations. You will find information on returning the product on the Internet pages of Siemens Industry

Online Support: Link: (https://support.industry.siemens.com/cs/ww/en/view/109479891)

SIMATIC NET glossary

Explanations of many of the specialist terms used in this documentation can be found in the SIMATIC NET glossary.

You will find the SIMATIC NET glossary on the Internet at the following address:

RTU303xC Operating Instructions, 06/2019, C79000-G8976-C382-06

Preface

Link: (https://support.industry.siemens.com/cs/ww/en/view/50305045)

Training, Service & Support

You will find information on training, service and support in the multilanguage document "DC_support_99.pdf" on the Internet pages of Siemens Industry Online Support:

Link: (https://support.industry.siemens.com/cs/ww/en/view/38652101)

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Preface ................................................................................................................................................... 3

1 Application and functions ...................................................................................................................... 15

1.1 Application and use of the RTU .............................................................................................. 15

1.2 Configuration examples .......................................................................................................... 17

1.3 Modes and operating modes .................................................................................................. 21

1.4 Process connection - inputs / outputs ..................................................................................... 24

1.5 Control functions ..................................................................................................................... 24

1.6 Communications services ....................................................................................................... 25

1.7 Security functions for communication ..................................................................................... 32

1.8 Other services and properties ................................................................................................. 34

1.9 Performance data ................................................................................................................... 36

1.10 Scope of delivery, accessories, requirements ........................................................................ 39

2 LEDs, connectors, buttons, card slots ................................................................................................... 45

2.1 Appearance of the device ....................................................................................................... 45

2.2 LEDs ....................................................................................................................................... 46

2.3 Interfaces and connectors ...................................................................................................... 51

2.4 The button "WKUP/RESET" ................................................................................................... 57

2.5 Slots for SIM card and SD card .............................................................................................. 58

3 Connecting up, installation, commissioning ........................................................................................... 61

3.1 Important notes on using the device ....................................................................................... 61

3.1.1 Notices on use in hazardous areas ........................................................................................ 61

3.1.2 Notices on use in hazardous areas according to ATEX / IECEx ............................................ 63

3.1.3 Instructions for use in hazardous areas according to FM and UL HazLoc ............................. 64

3.1.4 Safety when connecting (devices without NEC Class 2) ........................................................ 65

3.1.5 Device defective ...................................................................................................................... 67

3.2 Requirements for commissioning ........................................................................................... 67

3.3 SD card / using and formatting SMC ...................................................................................... 68

3.4 Inserting the SIM card and SD card ........................................................................................ 69

3.5 Installing an RTU .................................................................................................................... 70

3.6 Grounding and overvoltage protection .................................................................................... 73

3.7 Connecting up the RTU .......................................................................................................... 74

3.8 Connecting devices to the extension board ............................................................................ 80

3.8.1 Modbus devices ...................................................................................................................... 80

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3.8.2 HART devices ........................................................................................................................ 81

3.9 Commissioning and starting up the RTU ............................................................................... 84

4 Configuration (WBM) ............................................................................................................................ 89

4.1 Security recommendations .................................................................................................... 89

4.2 Range of functions of the WBM ............................................................................................. 92

4.3 General functions of the WBM ............................................................................................... 94

4.4 Permitted characters and parameter lengths ......................................................................... 95

4.5 Permissible file size for certificates and keys ...................................................................... 100

4.6 Establishing the connection between RTU and configuration PC ....................................... 100

4.6.1 Address data of the RTU ..................................................................................................... 100

4.6.2 Establishing a connection to the WBM of the RTU .............................................................. 101

4.7 User data for the first login to the WBM ............................................................................... 106

4.8 Logging in ............................................................................................................................. 107

4.9 Start page ............................................................................................................................. 108

4.9.1 Overview .............................................................................................................................. 108

4.9.2 Status ................................................................................................................................... 110

4.10 System ................................................................................................................................. 112

4.10.1 General ................................................................................................................................ 112

4.10.2 Device info ........................................................................................................................... 113

4.10.3 SD card ................................................................................................................................ 113

4.10.4 System time ......................................................................................................................... 116

4.11 Diagnostics ........................................................................................................................... 120

4.11.1 Diagnostics buffer ................................................................................................................ 120

4.11.2 Configuration ........................................................................................................................ 121

4.12 Maintenance ......................................................................................................................... 122

4.12.1 Configuration ........................................................................................................................ 122

4.12.2 Firmware .............................................................................................................................. 124

4.12.3 Operating status ................................................................................................................... 127

4.12.4 Online support ...................................................................................................................... 129

4.13 LAN ...................................................................................................................................... 130

4.13.1 Overview .............................................................................................................................. 130

4.13.2 Configuration ........................................................................................................................ 131

4.14 WAN ..................................................................................................................................... 133

4.14.1 Overview .............................................................................................................................. 133

4.14.2 Mobile wireless settings ....................................................................................................... 135

4.14.3 Wireless cell ......................................................................................................................... 140

4.14.4 SMS ..................................................................................................................................... 141

4.14.5 DynDNS ............................................................................................................................... 142

4.15 Services ............................................................................................................................... 144

4.15.1 Overview

.............................................................................................................................. 144

4.15.2 E-mail ................................................................................................................................... 145

4.15.3 FTP ...................................................................................................................................... 148

4.16 Security ................................................................................................................................ 150

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Table of contents

4.16.1 Overview ............................................................................................................................... 150

4.16.2 VPN ....................................................................................................................................... 151

4.16.3 HTTPS .................................................................................................................................. 156

4.16.4 Event buffer ........................................................................................................................... 159

4.16.5 Syslog ................................................................................................................................... 160

4.17 Users / groups ....................................................................................................................... 161

4.17.1 User....................................................................................................................................... 161

4.17.2 Recipient groups ................................................................................................................... 164

4.18 Operating mode .................................................................................................................... 166

4.18.1 Operating modes .................................................................................................................. 166

4.18.2 Logging ................................................................................................................................. 169

4.18.3 Power supply ........................................................................................................................ 171

4.18.4 Battery service life ................................................................................................................. 176

4.18.5 Batteries: Estimating the working life .................................................................................... 176

4.19 Tags ...................................................................................................................................... 178

4.19.1 Overview ............................................................................................................................... 178

4.19.2 Configuration of the tags , general parameters .................................................................... 179

4.19.3 Digital inputs ......................................................................................................................... 181

4.19.4 Digital outputs / Digital memory bits ..................................................................................... 184

4.19.5 Analog inputs ........................................................................................................................ 184

4.19.6 Analog memory bits .............................................................................................................. 193

4.19.7 Temperature (Internal) .......................................................................................................... 194

4.19.8 Power supply (external) ........................................................................................................ 195

4.19.9 Battery ................................................................................................................................... 195

4.19.10 Texts ..................................................................................................................................... 196

4.20 Extension board .................................................................................................................... 199

4.20.1 General ................................................................................................................................. 199

4.20.2 RS-485 Modbus .................................................................................................................... 201

4.20.3 HART .................................................................................................................................... 203

4.20.4 Devices ................................................................................................................................. 205

4.20.5 Tags ...................................................................................................................................... 206

4.21 GPS (RTU3031C) ................................................................................................................. 211

4.21.1 General ................................................................................................................................. 211

4.21.2 Tags ................................

...................................................................................................... 212

4.22 Program ................................................................................................................................ 213

4.22.1 Creating the user program using program blocks ................................................................ 213

4.23 Telecontrol ............................................................................................................................ 213

4.23.1 Overview ............................................................................................................................... 213

4.23.2 TeleControl Basic .................................................................................................................. 215

4.23.3 ST7........................................................................................................................................ 218

4.23.4 DNP3..................................................................................................................................... 220

4.23.5 IEC 60870-5-104 ................................................................................................................... 226

4.23.6 Data points ............................................................................................................................ 230

4.23.7 Status IDs of the data points ................................................................................................. 239

4.23.8 Wake-up call / wake-up SMS ................................................................................................ 240

4.24 Tag tables ............................................................................................................................. 243

4.24.1 Overview ............................................................................................................................... 243

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Table of contents

5 Program blocks .................................................................................................................................... 249

5.1 Block overview ..................................................................................................................... 249

5.2 Parameter assignment of the blocks.................................................................................... 251

5.3 Often used parameters ........................................................................................................ 252

5.4 Blocks for logical functions ................................................................................................... 255

5.4.1 Logical AND ......................................................................................................................... 255

5.4.2 Logical OR ........................................................................................................................... 256

5.4.3 Exclusive OR (XOR) ............................................................................................................ 257

5.4.4 Logical NOT ......................................................................................................................... 258

5.5 Blocks for basic types of calculation .................................................................................... 259

5.5.1 Addition ................................................................................................................................ 259

5.5.2 Subtraction ........................................................................................................................... 259

5.5.3 Multiplication ........................................................................................................................ 260

5.5.4 Division ................................................................................................................................. 261

5.6 Blocks for time functions ...................................................................................................... 262

5.6.1 On delay ............................................................................................................................... 262

5.6.2 Off delay ............................................................................................................................... 263

5.6.3 On / Off delay ....................................................................................................................... 265

5.6.4 Retentive on delay ............................................................................................................... 266

5.6.5 Pulse generator .................................................................................................................... 268

5.6.6 Random on/off delay ............................................................................................................ 268

5.6.7 Pulse sequence.................................................................................................................... 269

5.6.8 Year timer ............................................................................................................................. 273

5.6.9 Week timer ........................................................................................................................... 276

5.6.10 Astronomical clock ............................................................................................................... 277

5.7 Blocks for analog value functions ........................................................................................ 279

5.7.1 Triggered saving .................................................................................................................. 279

5.7.2 Analog value monitoring ...................................................................................................... 280

5.7.3 Limit value switch ................................................................................................................. 281

5.7.4 Difference limit switch .......................................................................................................... 284

5.7.5 Range monitoring ................................................................................................................. 287

5.7.6 Analog value comparator ..................................................................................................... 289

5.7.7 Min. /Max. /Mean value ........................................................................................................ 290

5.7.8 Analog value processing ...................................................................................................... 292

5.7.9 GPS position (RTU3031C) ................................................................................................... 293

5.7.10 Statistics ............................................................................................................................... 295

5.8 Counter and summation blocks ........................................................................................... 298

5.8.1 Counters

............................................................................................................................... 298

5.8.2 Elapsed time counter ........................................................................................................... 300

5.8.3 Frequency calculation .......................................................................................................... 302

5.8.4 Flow calculation.................................................................................................................... 303

5.8.5 Flow totalizer ........................................................................................................................ 304

5.8.6 Flow calculation rectangular weir ......................................................................................... 306

5.8.7 Silo volume calculation ........................................................................................................ 309

5.9 Blocks for messages ............................................................................................................ 311

5.9.1 Sending SMS messages ...................................................................................................... 311

5.9.2 Send e-mail .......................................................................................................................... 312

5.9.3 FTP file transfer.................................................................................................................... 313

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Table of contents

5.10 Switch and relay blocks ........................................................................................................ 315

5.10.1 Latching relays ...................................................................................................................... 315

5.10.2 Current impulse relay ............................................................................................................ 317

5.10.3 Wiping relay .......................................................................................................................... 319

5.10.4 Time relay ............................................................................................................................. 321

5.11 Other blocks .......................................................................................................................... 323

5.11.1 Operating state ..................................................................................................................... 323

6 Diagnostics and maintenance ............................................................................................................. 325

6.1 Diagnostics options ............................................................................................................... 325

6.2 Error detections for Telecontrol, e-mails and FTP ................................................................ 327

6.3 Loading firmware .................................................................................................................. 329

6.4 Resetting to factory settings ................................................................................................. 329

6.5 Replacing the RTU ................................................................................................................ 331

6.6 Batteries: Replacement, recycling and disposal ................................................................... 332

7 Technical data .................................................................................................................................... 335

A Approvals ............................................................................................................................................ 341

B Dimension drawings ............................................................................................................................ 349

C Accessories ........................................................................................................................................ 351

C.1 Battery module ...................................................................................................................... 351

C.1.1 Battery module and battery expansion module .................................................................... 351

C.1.2 Battery ................................................................................................................................... 356

C.2 Extension Board .................................................................................................................... 358

C.2.1 EXTENSION BOARD HART / RS485 .................................................................................. 358

C.3 SD card / SMC ...................................................................................................................... 361

C.3.1 Compatible SD cards ............................................................................................................ 361

C.3.2 SIMATIC S7 Memory Card (SMC) ........................................................................................ 362

C.4 Antennas and accessories .................................................................................................... 363

C.4.1 Antenna ANT896-4ME .......................................................................................................... 363

C.4.2 Antenna ANT794-4MR.......................................................................................................... 363

C.4.3 Antenna ANT895-6ML (RTU3031C) ..................................................................................... 364

C.4.4 Antenna accessories, screw connections ............................................................................. 365

C.5 Router SCALANCE M ........................................................................................................... 368

C.6 Protective housing ................................................................................................................ 370

C.6.1 Aluminum protective housing ................................................................................................ 370

C.6.2 Stainless steel protective housing ........................................................................................ 372

C.7 Overvoltage protection modules ........................................................................................... 374

C.7.1 Overvoltage protection module for the antenna cable .......................................................... 374

C.7.2 Overvoltage protection modules for supply and signal cables ............................................. 375

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D Syslog Messages ................................................................................................................................. 377

D.1 Structure of the Syslog Messages ....................................................................................... 377

D.2 Tags in Syslog Messages .................................................................................................... 378

D.3 Explanation of the messages ............................................................................................... 380

E Documentation references ................................................................................................................... 387

E.1 /1/ ......................................................................................................................................... 387

E.2 /2/ ......................................................................................................................................... 388

E.3 /3/ ......................................................................................................................................... 388

E.4 /4/ ......................................................................................................................................... 388

E.5 /5/ ......................................................................................................................................... 388

E.6 /6/ ......................................................................................................................................... 388

E.7 /7/ ......................................................................................................................................... 389

E.8 /8/ ......................................................................................................................................... 389

E.9 /9/ ......................................................................................................................................... 389

E.10 /10/ ....................................................................................................................................... 389

Index ................................................................................................................................................... 391

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1.1 Application and use of the RTU

Applications

The RTU is intended for monitoring and controlling small outlying stations without a connection to a power supply network.

In telecontrol networks, the RTU is used to connect the outlying stations to the master station via mobile wireless or via the LAN interface of the RTU and an optional external router.

Core functions The RTU supports the following core functions:

●

Energy-saving operation Thanks to the energy-saving operation with various operating modes (see below), the

RTU is predestined for use in geographically distributed outlying stations, measuring points and other applications without connection to a power supply network.

The RTU can be supplied with auxiliary power via the following power sources: – Battery modules

Battery modules are available as accessories, see Appendix Battery module (Page 351)

– External power source e.g. solar modules

●

Process connection For the process connection, the RTU is equipped with inputs and outputs: – 8 x DI (digital inputs) – 4 or 8 (RTU3031C) x DQ (digital outputs) – 4 x AI (analog inputs) – up to 16 x DI/AI via the extension board

●

Controller For simple control tasks, the process data can be linked via program blocks.

●

Storing process data (Logging) The RTU provides the option of storing the process data of the connected sensors and

the values of some internal parameters on an SD card. Use this option when there is no communications partner in the master station for the

RTU. You can also use the function when you transfer the process data to the master station

(optional).

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Application and functions

1.1 Application and use of the RTU

● Communication with the control room If a communications partner is available in the master station, the RTU can send process

data to the control room. The data is transferred either via the mobile wireless service GPRS or UMTS or via LAN (optionally with an external router).

●

Telecontrol protocols For communication with the master station, the RTU supports the following protocols: – TeleControl Basic – SINAUT ST7 – DNP3 – IEC 60870-5-104 You will find detailed information about the protocols in the section Communications

services (Page 25).

●

Position determination and time synchronization via GPS (RTU3031C) The exact position of the RTU can be monitored via GPS and, for example, an alarm can

be triggered if the RTU moves outside a defined range. High-precision time-of-day synchronization via GPS is also possible.

Configuration examples You will find configurations of the RTU in the section Configuration examples (Page 17).

Configuration and programming of the RTU in the WBM

Configuration You configure the parameters of the RTU itself, its inputs and outputs, control functions and

communication parameters conveniently in the Web Based Management (WBM). The WBM consists of Web pages stored on the RTU. From a configuration PC you connect to the WBM.

Programming You program in the WBM with the following actions:

● Keyboard entries

● Selection of options in drop-down lists

● Enabling check boxes

● Working with buttons ("Apply", "Add", "Load", "Search" etc.)

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Application and functions

1.2 Configuration examples

Below, you will find configuration examples for applications of the RTU. You will find references to the configuration of individual communications functions in the

section Communications services (Page 25). You will find a diagram of the configuration of the configuration PC that accesses the WBM

of the RTU using HTTP and OpenVPN in the section Establishing a connection to the WBM of the RTU (Page 101).

SMS / E-mail / FTP

Figure 1-1 Sending SMS messages by the RTU

Sending SMS messages / e-mail The RTU can send messages (SMS / e-mails) for configurable events via program blocks or

using the logging function. After a request from a mobile telephone, a diagnostics SMS message can be sent. In the attachment of e-mails, you have the option of transferring the process image, the

diagnostics buffer or the current log file.

Receiving SMS messages The RTU can be wakened out of the sleep mode by the telecontrol server or by the SMS

message of a mobile telephone or by SINEMA Remote Connect to establish a connection to the communications partner

All mobile phones that are permitted to send a wake-up SMS message or the request for a diagnostics SMS message to the RTU, must be enabled with the phone number of every user in the WBM of the RTU ("Wake-up call allowed").

FTP file transfer The RTU can transfer files to an FTP server in the LAN or reachable via the Internet via an

FTP block. The current log file, the entire process image or the diagnostics buffer can be transferred.

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Application and functions

1.2 Configuration examples

Telecontrol with the "TeleControl Basic" protocol

In the following example the RTU uses the "TeleControl Basic" protocol and communicates via the mobile wireless network and the Internet with the teleconrol server (TCSB) in the master station.

Using its integrated OPC server, the telecontrol server exchanges data with the OPC client of the control center.

Figure 1-2 Communication of the RTU and other station types with a master station

Telecontrol with the "ST7" protocol

In the following example the RTU communicates using the telecontrol protocol SINAUT ST7. For secure communication, the RTU uses the transport protocol "MSCsec".

The figure contains two alternative connections:

● RTU3010C with connection via the Internet

● RTU3030C with connection via mobile wireless

It would also be possible to connect via LAN, only via the Internet or via an additional underlying OpenVPN tunnel.

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Application and functions

1.2 Configuration examples

Figure 1-3 Communication of the RTU3010C and RTU3030C with a master station TIM

Telecontrol with the "DNP3" protocol

The following example contains a configuration with stations that communicate with the master via the mobile wireless network and the Internet.

In this example, the master is duplicated. The two devices of the DNP3 master (main and substitute master) in the master station are addressed by the RTU using one DNP3 address but two different IP addresses.

The connections between stations and master are via an OpenVPN server "SINEMA Remote Connect".

When using the DNP3 protocol, for example, SIMATIC PCS 7 TeleControl or the system of a third-party provider can be used as the master. If you use SIMATIC PCS 7 TeleControl as the DPN3 master, you require the necessary DPN3 driver.

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Application and functions

1.2 Configuration examples

Figure 1-4 Communication of the RTU with a DNP3 master station

Telecontrol with the IEC protocol

The following example contains a configuration with stations that communicate with the master via the mobile wireless network and the Internet.

The connections between stations and master are via an OpenVPN server "SINEMA Remote Connect".

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1.3 Modes and operating modes

Figure 1-5 Communication of the RTU with an IEC master station

When using the IEC protocol, the RTU can also communicate with a redundantly configured master.

1.3 Modes and operating modes

Modes

The modes of the RTU are not configured explicitly but result from the configuration of the communications partner and the existence of an SD card.

The RTU can be operated one or both of the following modes:

TeleControl In the "TeleControl" mode, the RTU can send process data via the mobile wireless network

or via the LAN interface and an external router to a master station (see also "Communication mode" below).

This mode is adopted when a communications partner (master station) is configured. As an option, process data can be stored on an SD card. To do this logging must be enabled

in the WBM in "Operating mode".

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1.3 Modes and operating modes

Logging In the "Logging" mode the RTU has no communications partner in the master station.

Instead, the RTU stores the process data. This operating mode is adopted when logging must be enabled in the WBM in "Operating

mode". In the "Logging" mode, the RTU requires an SD card where it can store the process data. The stored process data can be read out from the SD card or sent via the mobile wireless

network or the LAN interface and an external router. Cyclic sending is possible by e-mail or FTP. You can load the data on a PC via the WBM.

Operating modes

The RTU can adopt the following operating modes:

● Sleep mode

● Update mode

● Communication mode

● Service mode

Sleep mode In the energy-saving standard operating mode the updating of the inputs and outputs, the

communications functions, the LEDs and the self check function (see section Other services and properties (Page 34)) of the RTU are turned off.

The RTU interrupts the sleep mode in the following situations:

● Pressing the button "WKUP" and changing to the service mode

● Configured change to the update mode (WBM > Operating mode)"

With the inputs, other specific update cycles can be configured (WBM > "Tags").

● Configured change to the communication mode (WBM > Operating mode)"

● Pending diagnostics message with configured change to the communication mode (WBM

> "Diagnostics" > "Notifications")

● Cyclic interruption of the sleep mode to fetch a wake-up SMS (WBM > "Operating mode")

● Occurrence of certain events:

– Creating a new log file with a configured change to the communication mode to

transfer the old log file

– Further events, refer to the section "Update mode".

In the "TeleControl" mode, the RTU in sleep mode has the greatest energy-saving potential when using the "TeleControl Basic" protocol.

Update mode The update mode is controlled by the configurable update cycle, refer to the section

Operating modes (Page 166).

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1.3 Modes and operating modes

In the Update mode, the RTU runs through the following steps:

● Read the inputs and, if enabled, the GPS position (RTU3031C) that were configured for

the current cycle.

● Processing of the program blocks

● Writing the outputs

● Saving the process data in the send buffer when telecontrol communication is enabled

● Saving the process data data on the SD card (with Logging activated)

After updating, the RTU returns to sleep mode, or changes to the communication mode if this is configured. The update cycle and communication cycle can also run independently of each other.

In addition to the configured update cycle, the RTU changes from the sleep mode to the update mode when configurable events occur. The following events can be configured:

● Value change at the analog input "AI0"

● Edge change at a digital input

● Triggering of timers of program blocks, for example with a pulse generator or with the

on/off delay.

● Manual value change of a tag in WBM Note that configured events lead to higher current consumption.

Communication mode In the Communication mode, the RTU performs the following tasks:

● Activating the internal mobile wireless modem or the LAN interface and an external router

(via configurable control outputs of the RTU)

● Sending the data messages to the configured communications partner in the master

station

● Sending stored messages / data (SMS messages, e-mails, FTP file transfer, Syslog)

● Synchronization of the time of day if configured.

● Diagnostics

In addition to the tasks listed above, in the communication mode a connection can be established to the WBM of the RTU by the telecontrol server or the configuration PC. This makes diagnostics of the RTU and maintenance work possible.

The times of the changeover to the communication mode can be configured as a cycle and on the occurrence of events. After transferring data, the RTU returns to the sleep mode. As long as there is no update cycle running.

Connection establishment as a result of receiving a wake-up SMS message from the telecontrol server or from a mobile phone can be configured. Remember that this increases the current consumption of the RTU. For more detailed information, refer to the section Wake-up call / wake-up SMS (Page 240).

Service mode The service mode is enabled by briefly pressing the (< 1 s) of the "WKUP" button.

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1.4 Process connection - inputs / outputs

The changeover to the Service mode as the following effect:

● Turning on the LEDs that were turned off in the other operating modes to reduce energy consumption.

● Activation of the LAN interface With the LAN interface of the RTU activated, a configuration PC can access the Web

pages (WBM) of the RTU.

The Service mode is intended for commissioning and for service purposes on site, for example, to replace the battery.

The service mode can be active parallel with the update mode and communication mode. The service mode can also be activated permanently. Remember that this increases the

energy consumption of the RTU significantly.

1.4 Process connection - inputs / outputs

Inputs, outputs

The RTU provides the following inputs and outputs for the process connection:

● 8 digital inputs The first two digital inputs can also be configured as fast counter inputs up to 5 kHz.

● 4 digital outputs, designed as bistable mechanical relays

● RTU3031C: 4 digital outputs, designed as fast electronic relays

● 4 analog inputs

The input AI0 can also be monitored in sleep mode.

● Up to 16 digital or analog inputs via the extension board

You will find details in the section Interfaces and connectors (Page 51).

1.5 Control functions

Control functions

The control functions of the RTU are implemented by creating a user program made up of program blocks. The blocks are displayed graphically and programmed on integrated Web pages (WBM), see section Program (Page 213).

The linking with inputs and outputs and the programming of function values is performed conveniently with drop-down lists or by entering values.

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1.6 Communications services

The following groups of program blocks are available:

● Logical functions

Logical AND / OR, NOT (inverter), exclusive OR

● Timer functions

Delay blocks, pulse generator, timer block

● Analog value functions

Threshold value and comparator blocks, arithmetic functions etc.

● Counter and summation blocks

Counter, flow, summation and volume blocks

● Blocks for messages

Sending by SMS, e-mail and FTP

● Relay blocks

Latching relays, current impulse relays, wiping relays, time relays

● Other blocks

Block for changing the operating state

For a description of the program blocks, refer to the section Program blocks (Page 249).

1.6 Communications services

Interfaces for communication

With firmware version V1, the RTU supports communication via mobile wireless (WAN interface).

As of firmware version V2, the RTU also supports communication via LAN, optionally with an external router. For the following communications services the interface (LAN/WAN) can be set separately: Telecontrol, e-mail, FTP, NTP.

As of firmware version V3, connections to an OpenVPN server (or SINEMA RC) can be made via LAN or WAN.

Exception: Connections with DynDNS are always via mobile wireless. You will find a selection of routers in the appendix Router SCALANCE M (Page 368).

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1.6 Communications services

Protocols for communication with a master station

Depending on the loaded firmware variant, the RTU supports one of the following protocols for communication with a master station:

●

TeleControl Basic This is a proprietary protocol of Siemens for telecontrol applications. The IP-based communications protocol is used to connect the RTU to the application

TCSB. TCSB is installed on a PC in the master station, the telecontrol server. For the version, see section Scope of delivery, accessories, requirements (Page 39).

Via the OPC-DA or OPC-UA server of TCSB, and OPC client can access the process data of the RTU. For the TCSB manual, see /4/ (Page 388).

Apart from the RTU, several S7-1200 CPs also support the protocol. It allows especially energy-saving operation since communications connections are only established temporarily stop

●

SINAUT ST7 The RTU uses the ST7 protocol for communication with a master station TIM. For communication with a PC application in the master station, the connection must run

via the master station TIM. When communicating with a TIM module, the RTU uses the transfer protocol "MSCsec"

on the network layer (OSI layer 3). The S7 or MSC protocol cannot be used for communication with a master station application.

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NOTICE

Securing communication

1.6 Communications services

● DNP3

The RTU functions as a DNP3 station (Outstation). Communication is based on the DNP3 SPECIFICATION Version 2.x (2007/2009). The RTU is certified for the DNP3 conformity levels Level 1 and 2, but also supports

higher conformity levels. For secure communication with the master, the connection can be established via a VPN

tunnel, see section Security functions for communication (Page 32).

• When using the LAN interface, select suitable means to make sure that there is secure communication with the master, for example by using SCALANCE M routers.

• For direct use of the WAN interface without an underlying VPN connection, make sure that the mobile wireless network is protected against access by third parties, e.g. by using a private APN.

According to the specification "Supplement to Volume 2 - SECURE AUTHENTICATION", the RTU supports secure authentication, see section DNP3 (Page 220).

You will find a detailed overview of the attributes and properties specified in the DNP3 protocol and supported by the RTU in the DNP3 device profile, see /2/ (Page 388).

You can find the supported object groups and variations in the section Data points (Page 230).

Communications partners (DNP3 masters) of the RTU can be: – SIMATIC PCS 7 TeleControl – SIMATIC WinCC TeleControl – A TIM module with DNP3 capability (TIM 3V IE DNP3 / TIM 4R IE DNP3)

For the manual of the TIM module see /8/ (Page 389).

– Third-party systems that support the DNP3 specification named above.

●

IEC 60870-5 The RTU functions as a substation (slave). Communication is based on the specification IEC 60870-5 Part 104 (2006). Communications partners of the RTU can be all master systems that support the

specification named above. For secure communication with the master, the connection can be established via a VPN

tunnel, see section Security functions for communication (Page 32).

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NOTICE

Securing communication

1.6 Communications services

• When using the LAN interface, select suitable means to make sure that there is secure communication with the master, for example by using SCALANCE M routers.

• For direct use of the WAN interface without an underlying VPN connection, make sure that the mobile wireless network is protected against access by third parties, e.g. by using a private APN.

You will find a detailed overview of the attributes and properties specified in the IEC specification and supported by the RTU in the IEC device profile, see /3/ (Page 388).

You can find the supported IEC type identifiers in the section Data points (Page 230).

When it ships, the RTU is loaded with the firmware variant for the "TeleControl Basic" protocol.

Firmware for the protocols DNP3, IEC and ST7

To use these telecontrol protocols, you need to load the corresponding firmware variant on the RTU.

You can obtain the suitable firmware file free of charge from Siemens Industry Online Support:

● Link: (http://www.automation.siemens.com/aspa_app/) Here, you will find a contact.

● Link: (https://support.industry.siemens.com/cs/ww/en/ps/21766/dl) With this page, you can download the firmware.

The firmware version for the "TeleControl Basic" protocol loaded when the device was delivered is then overwritten, but it can be loaded to the module again.

For information on loading firmware files, see section Loading firmware (Page 329).

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1.6 Communications services

Other communication services

The RTU can send messages and data for configured event classes (diagnostics buffer entries) either as SMS messages or as e-mails.

●

SMS (receive) The following SMS messages can be received: – Wake-up SMS message configured in the Configuration and Monitoring Tool (CMT) of

TCSB for establishing a connection to the telecontrol server

– Manually triggered wake-up SMS message from the Web server of TCSB for

establishing a connection to a PC (via the telecontrol server) – Wake-up SMS from SINEMA Remote Connect – Manual TeleService SMS optionally with deadline – SMS message as request for a diagnostics SMS message You enable receipt of SMS messages in the WBM, refer to the section SMS (Page 141).

●

SMS (sending) The following SMS messages can be sent: – SMS message if diagnostics messages occur, refer to the section Configuration

(Page 121). – SMS message with event-related process data via program blocks, refer to the section

Sending SMS messages (Page 311). – Diagnostics SMS message, refer to the section Diagnostics options (Page 325). – SMS messages if certain events occur relating to the SD card or battery module – SMS when the IP address changes on the WAN interface

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1.6 Communications services

● E-mail (sending) The following e-mails can be sent: – E-mail if diagnostics messages occur, refer to the section Configuration (Page 121). – E-mail with event-related process data via program blocks, refer to the section Send

e-mail (Page 312).

– E-mails with process data (log file) using the logging function, refer to the section

Logging (Page 169). – E-mails if certain events occur relating to the SD card or battery module – E-mail when the IP address changes on the WAN interface In the attachment of an e-mail, there is the option of transferring the current process

image, the log file or the entire diagnostics buffer. The attachment is transferred uncompressed or compressed as a ZIP archive.

You configure the access data and general settings for using the e-mail service in the WBM, refer to the section E-mail (Page 145).

For information on the configurable security option "STARTTLS" when sending e-mails, refer to the section Security functions for communication (Page 32).

You configure further parameters of notifications on the following WBM pages: – Recipient of the messages, refer to the section Users / groups (Page 161). – Message texts, refer to the section Texts (Page 196). – For information on selecting the attachment of the e-mail, see section Configuration

(Page 121).

●

FTP (sending) Transfer of FTP files via a program block to an FTP server reachable via LAN or the

Internet The function corresponds to the FTP command "PUT". An FTP file transfer is possible for the following data: – Current log file

See section Logging (Page 169). – The entire process image – The entire diagnostics buffer The file can be transferred uncompressed or compressed as a ZIP archive. For

uncompressed transfer, the file transfer can also be performed with the "Append" function. When this is used, when the file being transferred arrives at the destination location, the FTP server appends the file to an existing file of the same name, if present, instead of overwriting it.

For information on the program block see section FTP file transfer (Page 313). For information on the configurable security option when using FTP transfer see section

Security functions for communication (Page 32).

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Siemens Simatic RTU303xC Series, Simatic RTU3030C, Simatic RTU3031C Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

RTU303xC

Legal information

Preface

Table of contents

1.1 Application and use of the RTU

1.2 Configuration examples

1.3 Modes and operating modes

1.4 Process connection - inputs / outputs

1.5 Control functions

1.6 Communications services