Siemens Simatic RTU303xC Series User manual

RTU303xC
SIMATIC
TeleControl - RTU
RTU303xC
Operating Instructions
RTU3030C
RTU3031C
06/2019
C79000
-G8976-C382-06
Preface
Application and functions
1
LEDs, connectors, buttons,
card slots
2
Connecting up, installation,
commissioning
3
Configuration (WBM)
4
Program blocks
5
Diagnostics and
maintenance
6
Technical data
7
Approvals
A
Dimension drawings
B
Accessories
C
Syslog Messages
D
Documentation references
E

Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
C79000-G8976-C382-06
Ⓟ
05/2019 Subject to change
Copyright © Siemens AG 2015 - 2019.
All rights reserved
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.
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.
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:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
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
ambient conditions must be complied with. The information in the relevant documentation must be observed.
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.

RTU303xC
Operating Instructions, 06/2019, C79000-G8976-C382-06 3
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.
Figure 1 SIMATIC RTU3030C
SIMATIC RTU3031C
Article number: 6NH3112-3BB00-0XX0
Hardware product version 2
Firmware version 3.1

Preface
RTU303xC
4Operating Instructions, 06/2019, C79000-G8976-C382-06
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.
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.

Preface
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Operating Instructions, 06/2019, C79000-G8976-C382-06 5
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

Preface
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6Operating Instructions, 06/2019, C79000-G8976-C382-06
●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
Note
Open source software
Read the license conditions for open source software carefully before using the product.
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

Preface
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Operating Instructions, 06/2019, C79000-G8976-C382-06 7
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:

Preface
RTU303xC
8Operating Instructions, 06/2019, C79000-G8976-C382-06
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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Operating Instructions, 06/2019, C79000-G8976-C382-06 9
Table of contents
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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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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12 Operating Instructions, 06/2019, C79000-G8976-C382-06
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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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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14 Operating Instructions, 06/2019, C79000-G8976-C382-06
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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Application and functions
1
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).

Application and functions
1.1 Application and use of the RTU
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16 Operating Instructions, 06/2019, C79000-G8976-C382-06
●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.)

Application and functions
1.2 Configuration examples
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Operating Instructions, 06/2019, C79000-G8976-C382-06 17
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.

Application and functions
1.2 Configuration examples
RTU303xC
18 Operating Instructions, 06/2019, C79000-G8976-C382-06
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.

Application and functions
1.2 Configuration examples
RTU303xC
Operating Instructions, 06/2019, C79000-G8976-C382-06 19
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.

Application and functions
1.2 Configuration examples
RTU303xC
20 Operating Instructions, 06/2019, C79000-G8976-C382-06
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".