Siemens Wireless Office Headset SIMATICS PCS7 User Manual

© Siemens AG 2011
SIMATIC PCS 7 TeleControl
Process control system with integral telecontrol technology
Brochure · January 2011
SIMATIC PCS 7
Answers for industry.
© Siemens AG 2011
Set new productivity standards for constant competitive advantages
The optimization of processes improves quality, shortens the time to market and reduces the total cost of ownership.
To survive in increasingly tougher international competition, today it is more important than ever to consistently tap all optimization potentials throughout the entire lifecycle of a plant. At the same time, the perfect balance between quality, time and costs is the decisive success factor.
Totally Integrated Automation2
With Totally Integrated Automation (TIA) from Siemens, a seamless offering of perfectly matched products, systems, and solutions for all hierarchy levels of industrial automation, you are optimally equipped for this purpose.
© Siemens AG 2011

Contents

Integration of the telecontrol technology in TIA has made it possible to combine the automation of central plants and the monitoring of distributed units in a single process control system.
Homogenous operator control and monitoring using a com­mon control station, uniform configuration with the same engineering system, and consistent utilization of hardware components from the TIA product portfolio result in signifi­cant savings with regard to investments, operation and servicing.
text
SIMATIC PCS 7 TeleControl. . . . . . . . . . . . . . . . . . . . . 4
Process control system with integral
telecontrol center...................................................... 4
Typical application areas............................................ 5
SIMATIC PCS 7 TeleControl system architecture . . . 6
System overview....................................................... 6
Topologies ................................................................ 9
SIMATIC PCS 7 TeleControl system components . . 10
PCS 7 TeleControl Operator System.......................... 10
PCS 7 TeleControl engineering station ..................... 12
Remote terminal units............................................. 13
Telecontrol protocols . . . . . . . . . . . . . . . . . . . . . . . . 14
General/elementary telecontrol functions................ 14
SINAUT ST7 telecontrol protocol .............................. 15
DNP3 telecontrol protocol ....................................... 20
IEC 870-5-101/IEC 870-5-104 telecontrol protocol ... 23
Modbus telecontrol protocol.................................... 26
Redundancy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Increasing the plant availability ............................... 27
Migration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Migration of existing telecontrol systems................. 28
Application examples. . . . . . . . . . . . . . . . . . . . . . . . 30
Automation of a gas pipeline with slide valve and
measuring stations.................................................. 30
Automation of a sewage treatment plant with
pumping station and stormwater overflow tank....... 31
Totally Integrated Automation 3
© Siemens AG 2011

SIMATIC PCS 7 TeleControl

Process control system with integral telecontrol center

Automation of widely spread process plants
In a number of industries, especially the oil & gas, water & wastewater, power and transportation sectors, plants may sometimes be extremely widely spread. Individual distributed units may even be more than a thousand kilome­ters away from a central unit with a significantly higher degree of automation.
With a gas pipeline, for example, several slide valve and mea­suring stations are distributed between one of the compressor stations at the beginning of the pipeline and the relief station at the end.
A further example is the canal system of a widely branched wastewater network connected to a central sewage treatment plant via pumping stations and stormwater overflow tanks.
In both cases it is necessary to monitor regional units such as stormwater overflow tanks, pumping stations, slide valve stations or measuring stations from a far off control center, or to control them in the context of the complete plant.
Telecontrol systems with which automation functions can be executed from a remote control center over a telecommunica­tion network (wide area network/WAN) are the ideal solution for such tasks.
The automation of a process plant, as described above, is dis­tributed in conventional implementation concepts between heterogeneous system levels. Process control systems (PCS) are normally used for units with a higher degree of automa­tion, e.g. the central sewage treatment plant. On the other hand, the local automation of small units with a low degree of automation (pumping stations, stormwater overflow tanks) is carried out using simple remote terminal units (RTUs) which communicate with their control center by means of a telecon­trol link. To enable global monitoring, all systems of the auto­mation project (PCS and RTU) are integrated in a host network control system.
However, it is far more effective if the telecontrol center for the RTUs is directly integrated into the process control system using SIMATIC PCS 7 TeleControl. In this case, the network control system as a superimposed integration level can be omitted. Uniform process control and totally integrated engi­neering for central and widely distributed units, together with simple and convenient data management, result in high effi­ciency with regard to operation and engineering. Low training and servicing costs are further positive aspects.
SIMATIC PCS 7 TeleControl4
© Siemens AG 2011

Typical application areas

Remote control and monitoring of distributed stations, as well as data recording and transmission, with the following focal points:
Oil and gas industries
• Compressor, pressure reduction, transfer, block valve, and metering stations in gas networks
• Pumping and block valve stations in oil pipelines
• Automation on the wellhead of gas and oil wells
• Stations for the injection of water or CO2 in gas or oil fields
Water industry
• Well, pumping and valve stations in water supply networks and irrigation plants
• Stormwater overflow tanks and pumping equipment in wastewater networks
• Storage units (elevated tanks)
Energy management, environmental protection, and transportation
• Equipment for power generation and distribution
• District heat supply
• Traffic control systems
• Tunnels
• Railway stations
• Lighthouses
• Environmental monitoring equipment
• Weather stations
SIMATIC PCS 7 TeleControl 5
,QGXVWU LDO(WKHU QHW
WAN
WAN WAN
G_PCS7_XX _00175
WAN
S7-400 + CP 441
S7-300 + CP 341
PCS 7 TeleControl OS Server
Engineering Station
PCS 7 OS Clients
PCS 7 OS Single Station
(dedicated or dual channel)
TIM 4R-IE (ST7) or Converter TCP/IP ↔ serial (DNP3)
Widely distributed TeleControl outstations
Widely distributed TeleControl outstations
Widely distributed TeleControl outstations
TIM 4R-IE (ST7) or TCP/IP WAN router (DNP3)
TCP/IP WAN router
Converter TCP/IP ↔ serial
TCP/IP communication: SINAUT ST7
Serial communication: SINAUT ST7 or DNP3
TCP/IP communication: Modbus or IEC 870-5-104
Serial communication: Modbus or IEC 870-5-101
Third-party RTU
Third-party RTU (DNP3 only)
Third-party RTU (DNP3 only)
Third-party RTU
ET 200S with integral PN CPU
ET 200S with integral CPU + serial interface
S7-300 + CP 343 or PN interface
S7-400 + CP 443 or PN interface
S7-400 + TIM 4R-IE or TIM 4R-IE DNP3
S7-400 + TIM 4R-IE or TIM 4R-IE DNP3
S7-300 + TIM 3V-IE or TIM 3V-IE DNP3
S7-300 + TIM 3V-IE or TIM 3V-IE DNP3
© Siemens AG 2011

SIMATIC PCS 7 TeleControl system architecture

System overview

SIMATIC PCS 7 TeleControl system architecture
Integration in process control
The telecontrol center for the outstations (RTU) is integrated into the process control of the SIMATIC PCS 7 process control system in the form of an operator station in single station or server design (also redundant as option). No additional auto­mation system for conditioning telecontrol-specific data need be planned in the SIMATIC PCS 7 system. With large quantity frameworks, a PCS 7 TeleControl operator station (single sta­tion/server) is preferably responsible only for the telecontrol mode (dedicated). With small quantity frameworks, a server or a single station can also control SIMATIC PCS 7 automation systems (AS) in central plant areas in addition to the telecon­trol systems (dual-channel mode).
The OS clients of the client/server multi-user system are able to display data from RTUs and SIMATIC PCS 7 AS - which they receive from a server with dual-channel functionality or from two separate servers - together in one process image. Display is primarily on faceplates for process objects such as motors, valves etc., but also by means of trend curves and messages.
Engineering
To enable engineering of the PCS 7 TeleControl operator sta­tion (single station/server), the functions of the engineering station of the SIMATIC PCS 7 process control system are expanded by DBA technology (Data Base Automation) and the SIMATIC PCS 7 TeleControl block library.
Communication with the outstations (remote terminal units)
For communication with the outstations, SIMATIC PCS 7 TeleControl uses the SINAUT ST7, DNP3 and Modbus protocols (both via serial and TCP/IP communication connections) as well as IEC 870-5-101 (serial) and IEC 870-5-104 (Ethernet TCP/IP).
SIMATIC PCS 7 TeleControl system architecture6
© Siemens AG 2011
The serial RTU link is possible at low cost via the following components which can be connected directly to the PCS 7 TeleControl OS (single station or server):
SINAUT TIM communication modules (SINAUT ST7 telecontrol protocol)
TCP/IP converters – serial (DNP3, Modbus, IEC 870-5-101 telecontrol protocols) Devices from MOXA or Lantronix can be used as serial TCP/IP converters.
By means of Ethernet TCP/IP, the RTUs can be connected di­rectly or via TCP/IP WAN routers to the SIMATIC PCS 7 system bus (SINAUT ST7, DNP3, Modbus, IEC 870-5-104 telecontrol protocols). When using the SINAUT ST7 telecontrol protocol, the SINAUT TIM communication module can be used in addi­tion to the TCP/IP WAN router or as an alternative.
Telecontrol communication over the wide area network is largely determined by the communication infrastructure which already exists. Various transmission media such as dedicated line, analog or digital telephone networks, wireless networks (GSM or private), DSL or GPRS can also be combined with each other.
Outstations (remote terminal units)
Since the requirements of the widely distributed units with re­gard to scope and performance of the automation functions are usually in the low to mid range, controllers with minimum dimensioning are normally used as RTUs.
SIMATIC PCS 7 TeleControl particularly supports the following types of RTU for distributed automation on site:
Controllers integrated in SIMATIC ET 200S
(Modbus, IEC 870-5-101/104 telecontrol protocols)
SIMATIC S7-300/S7-300F controllers
(SINAUT ST7, DNP3, Modbus, IEC 870-5-101/104 telecon­trol protocols)
SIMATIC S7-400/S7-400F controllers
(SINAUT ST7, DNP3, Modbus, IEC 870-5-101/104 telecon­trol protocols)
SIMATIC S7-400H/S7-400FH redundant controllers
(IEC 870-5-101/104 and DNP3 telecontrol protocols)
In addition to these, appropriate third-party RTUs can also be connected to the telecontrol center in SIMATIC PCS 7 by means of the DNP3, Modbus, IEC 870-5-101/104 telecontrol protocols.
SIMATIC PCS 7 TeleControl cannot only integrate newly config­ured RTUs into SIMATIC PCS 7, it can also migrate units which already exist outdoors by means of DNP3, IEC 870-5-101/104, Modbus or EDC drivers. The Data Base Automation (DBA) soft­ware substantially facilitates project-specific adaptation of the system and importing of existing configurations during migra­tion. Extensions can be added during plant operation if neces­sary.
SIMATIC PCS 7 TeleControl system architecture 7
© Siemens AG 2011
Spectrum of outstations and integration versions
Telecontrol protocol SINAUT ST 7 Modbus DNP3 IEC 870-5-
Type of communica­tion
Interface on the PCS 7 TeleControl OS
ET 200S with inte­gral CPU (corre­sponds to S7-314)
RTU/interface
S7-300/ S7-300F
S7-400/ S7-400F
S7-400H/ S7-400FH
Third-party station Depends on type of station Depends on type of station Depends on type of station
Dialup lines 4 4
Dedicated line and radio networks
Master-slave 4 4 4 4 4 4 4 4
Peer-to-peer 4 4 4 4
Mesh networks 4 4 4 4 4 4
Time tagging in RTU 4 4 4 4 4 4
RTU time synchroniza­tion
Data buffering in RTU 4 4 4 4 4 1) 4 1)
Routing with SIMATIC PDM
International standard
1)
Data buffering is limited to two SIMATIC S7 data blocks. Depending on the SIMATIC CPU, this corresponds to approx. 800 to 3 200 buffered frames.
Serial Ethernet
TCP/IP
TIM 4R-IE TCP/IP WAN
router or/and TIM 4R-IE
IM 151-7 CPU
TIM 3V-IE TIM 3V-IE CP 341 CP 343 +
TIM 4R-IE TIM 4R-IE CP 441 CP 443 +
TIM 4R-IE
4 4 4 4 4 4 4 4
4 4
4 4 4
Serial Ethernet
TCP/IP converter serial
or IM 151-8 PN/DP CPU
as well as 1 SI module Modbus
4
(many ver-
sions)
TCP/IP
TCP/IP WAN router
IM 151-8 PN/DP CPU + S7­OpenModbus software / TCP PN-CPU
SW library
SW library
4
(many ver-
sions)
Serial Ethernet
TCP/IP converter serial
IM 151-7 CPU
TIM 3V-IE DNP3
TIM 4R-IE DNP3
DNP3
4 4 4 4
4 4 4 4
TCP/IP
TCP/IP WAN router
TIM 3V-IE DNP3
TIM 4R-IE DNP3
TIM 4R-IE DNP3
101
Serial Ethernet
TCP/IP converter serial
or IM 151-8 PN/DP CPU
as well as 1 SI module + SIPLUS RIC library
CP 341 + SIPLUS RIC library
CP 441 + SIPLUS RIC library
ET 200M + 2 x CP 341 + SIPLUS RIC library
IEC 870-5­104
TCP/IP
TCP/IP WAN router
IM 151-8 PN/DP CPU + SIPLUS RIC library
CP 343 + IEC on S7
or integral PN interface + SIPLUS RIC library
CP 443 + SIPLUS RIC library
or integral PN interface + SIPLUS RIC library
CP 443 + SIPLUS RIC library
SIMATIC PCS 7 TeleControl system architecture8

Topologies

© Siemens AG 2011
Basic topologies
Differently structured telecontrol networks can be implement­ed in the wide area network (WAN) based on the following four basic topologies.
Media versions
Depending on the support provided by the selected telecon­trol protocol, various transmission media are available for these basic topologies, e.g. dedicated line, private wireless networks, mobile radio networks, dial-up networks (wire­less/landline), DSL over Internet.
Some of these media versions are shown in the example of the star topology.
Point-to-
point
Star via
dedicated line
Multi-point Star Ring
Star via wireless
Dial-up
network via
wireless
Star via Internet
Combinations of basic topologies and media versions
Through a combination of several basic topologies of the same or different media versions, it is additionally possible to design more complex network topologies, even with redun­dant communication paths.
This allows adaptation to the respective local conditions and to the existing infrastructure.
Star +
multi-point
Complex network structure,
example of SINAUT ST7/DNP3
communication
Nodes
Path
redundancy,
1 medium
Complex network structure,
example of I EC 870- 5-104
communication
redundancy,
2 media
Path
SIMATIC PCS 7 TeleControl system architecture 9
© Siemens AG 2011

SIMATIC PCS 7 TeleControl system components

PCS 7 TeleControl Operator System

Single-user and multi-user systems
Depending on the magnitude of the automation project and the required number of operator stations, the SIMATIC PCS 7 TeleControl Operator System can be configured either as a sin­gle-user system (PCS 7 TeleControl OS single station) or as a multi-user system with client/server architecture:
• Single-user system
- Up to 5 000 process objects
- Up to approx. 3 000 measuring points
- Low number of operator stations
• Multi-user system (client/server)
- Up to 8 500 process objects per OS server
- Up to approx. 5 000 measuring points per OS server
- Up to 32 operator stations (OS clients)
In a single-user system architecture, all operation and moni­toring functions for a complete project (plant/unit) are con­centrated in one station.
A multi-user system has up to 32 operator stations (OS clients) which are supplied with data from one or more servers (OS server or PCS 7 TeleControl OS server) via the terminal bus.
The multi-client architecture of the multi-user system allows an OS client to call data from various servers, e.g. from two separate servers for local units and for units connected by means of PCS 7 TeleControl.
The PCS 7 TeleControl OS server of the multi-user system can also have a redundant design. All internally generated infor­mation (e.g. alarm states or results of calculations) is matched in the redundant pair of PCS 7 TeleControl OS servers.
The graduated scalability of the process objects of PCS 7 TeleControl OS single station and PCS 7 TeleControl OS server permits fine and flexible matching of the SIMATIC PCS 7 TeleControl Operator System to the size of the respective automation project.
Uniform process control for central and remote units
Dual-channel operation
OS clients
OS single station
SIMATIC PCS 7 + TeleControl (dual ch ann el)
PCS 7
automation system
Dual-channel operation with single-user and multi-user systems
· · ·
OS server (single or redundant)
Tel eC on trol
RTUs
PCS 7 TeleControl OS single station and PCS 7 TeleControl OS server are preferably used just for telecontrol functions (dedi­cated), but can also access central SIMATIC PCS 7 plant areas via an additional second channel in the case of small quantity frameworks (double-channel operation). In this way, data from the RTUs of the telecontrol system can be displayed in one process image together with data from SIMATIC PCS 7 AS.
G_PCS7_XX_00261
SIMATIC PCS 7 TeleControl system components10
© Siemens AG 2011
PCS 7 TeleControl blocks for system-conformant operator control and monitoring
The RTUs are integrated into the PCS 7 TeleControl Operator System by means of the PCS 7 TeleControl blocks such that there is no difference for the operator with regard to operat­ing philosophy and alarm behavior for the central or remote automation functions.
The blocks required for data conditioning and display are saved in a library. These blocks support SIMATIC PCS 7 compli­ant operator control by means of symbols and faceplates, as well as the hierarchy of SIMATIC PCS 7 fault messages.
In addition to blocks for processing of process data, the library also contains blocks for diagnostics and for control of communication. If necessary, the supplied basic library can be extended by new script-based block types specific to the project by using the DBA Type Editor.
Long-term archiving and logging
The PCS 7 TeleControl Operator System includes a high-perfor­mance cyclic archive based on Microsoft SQL Server for time­limited saving of process values and messages/events. Data from this cyclic archive can be exported time-controlled or event-controlled to a long-term archive (StoragePlus/central archive server).
The logging system of the PCS 7 TeleControl Operator System supports the display and evaluation of data recorded during operation by means of various predefined types of protocol which can also be matched individually:
• Message sequence report
• Message and archive log
• Measured value log
• Operator input log
• System message log
•User log
The logs saved in EMF format can be previewed on the screen, and can be printed manually or time- or event-controlled.
In order to comply with statutory directives and standards it may be necessary to provide special proof, e.g. proof of con­formity with the ATV M260 standard for sewage treatment plants. The SIMATIC PCS 7 add-on product ACRON equipped with additional functionalities for long-term archiving and logging provides excellent support for this purpose.
SIMATIC PCS 7 TeleControl system components 11
© Siemens AG 2011

PCS 7 TeleControl engineering station

Engineering station of the SIMATIC PCS 7 process control system
To enable engineering of the PCS 7 TeleControl operator sta­tion (single station/server), the functions of the engineering station of the SIMATIC PCS 7 process control system are ex­panded by DBA technology (Data Base Automation) and the SIMATIC PCS 7 TeleControl block library.
Data Base Automation (DBA)
Engineering can be automated efficiently and in conformance with SIMATIC PCS 7 using the DBA technology. DBA supports plant expansion during ongoing operation, and facilitates project-specific adaptation of the system as well as importing of existing configurations in the course of migration.
The DBA executed in the engineering station automatically generates the OS runtime database with the display hierarchy, required variables, alarms, alarm messages and alarm priori­ties, as well as the specific faceplates and block symbols.
The display hierarchy is the basis for navigation between the process displays, for alarm management, and for implementa­tion of safety measures. DBA positions the type-specific block symbols, e.g. measured value, counter value, motor or gate valve, in the process images. These symbols are linked to the corresponding function blocks and faceplates through the da­tabase. Manual configuration is mainly limited to the design and positioning of the static graphic elements, e.g. pipes or tanks.
SIMATIC PCS 7 TeleControl block library
In addition to the SIMATIC PCS 7 TeleControl basic library, new user blocks can also be defined using the DBA type editor. During database generation, the user blocks are treated like the blocks from the basic library.
Using the DBA type editor it is possible to assign the frequently unstructured variables of an RTU once to a block type and to display the variable structured on the operator station via the block's faceplate.
SIMATIC PCS 7 TeleControl blocks
The PCS 7 TeleControl OS symbols, faceplates and diagnostics displays created in conformance with SIMATIC PCS 7 take into account the specific features of telecontrol applications. This is demonstrated, for example, by the example of the counter block which offers versatile conditioning options for informa­tion on transported or processed quantities. At least one OS faceplate and one OS symbol are available for each type of block.
In addition to arrangement of information in a variable struc­ture, the user blocks generated with the DBA type editor can also calculate derived values using Visual Basic scripts in the server. This results in numerous possibilities for extending the functionality and for adapting the system to individual cus­tomer requirements.
Type-specific OS faceplates and OS symbols for the user blocks can be created using the standard tools for SIMATIC PCS 7 OS engineering (Graphics Designer and Faceplate Designer).
SIMATIC PCS 7 TeleControl system components12

Remote terminal units

Classification of the remote terminal units
© Siemens AG 2011
RTU Applications
RTU Small: controller integrated in SIMATIC ET 200S
RTU with up to approx. 30 I/Os
For small, cost-sensitive applica­tions
RTU Medium: SIMATIC S7-300/S7-300F controller
RTU with up to approx. 100 I/Os
For medium-sized applications; extremely flexible configuration
S7-300F for safety-related appli­cations
RTU Large: SIMATIC S7-400/S7-400F controller
Possible tele­control protocols
• Modbus No buffering
• IEC 870-5-101
• IEC 870-5-104
•SINAUT ST7
•DNP3
• Modbus No buffering
• IEC 870-5-101
• IEC 870-5-104
Information points/ buffer size
Up to approx. 200 information points
Buffer size: 800 information points
TIM buffering (up to 16 000 frames or up to 32 000 frames with TIM 3V-IE Advanced)
Up to approx. 2 000 informa­tion points
Buffer size: 800 to 3 200 infor­mation points
RTU with up to approx. 500 I/Os
For larger applications requiring increased performance
S7-400F for safety-related appli­cations
RTU Large: SIMATIC S7-400H/S7-400FH controller
Like S7-400/S7-400F •DNP3 TIM buffering
The remote control units supported by SIMATIC PCS 7 TeleControl have a performance classified as Small, Medium or Large.
Controllers of SIPLUS extreme design are also available in all performance classes, and can be operated under extreme con­ditions, e.g. ambient temperatures from -25 °C to +70 °C, con­densation or exposure to media.
•SINAUT ST7
•DNP3
• Modbus No buffering
• IEC 870-5-101
• IEC 870-5-104
• IEC 870-5-101
• IEC 870-5-104
In addition, the SIMATIC S7-300F and S7-400F controllers can be used to implement safety-related applications on site and automatically set the plant to a safe status in the event of a dangerous fault.
TIM buffering (up to 56 000 frames)
Up to approx. 5 000 informa­tion points
Buffer size: 3 200 information points
(up to 56 000 frames)
Up to approx. 5 000 informa­tion points
Buffer size: 3 200 information points
SIMATIC PCS 7 TeleControl system components 13
© Siemens AG 2011

Telecontrol protocols

General/elementary telecontrol functions

Telecontrol systems use special protocols to implement data transmission between the control center and the outstations (RTUs) at the process level for the automation functions on site. These telecontrol protocols manage the secure and error­free data transmission over the WAN even with a low band­width and poor transmission quality.
In addition to short transmission times for the information, this task requires effective protection of the frames against:
• Undetected bit errors
• Undetected frame errors resulting from synchronization errors
• Undetected loss of information
• Frame falsification
• Segregation or fault in related information
This particularly applies to event-controlled frames over trans­mission channels with a limited bandwidth and uncertain noise response.
Since irregular bit sequences are compiled for data transmis­sion, no limitation in codes must exist.
Time tagging
When linking RTUs by means of SINAUT ST7, DNP3, IEC 870-5-101 or IEC 870-5-104 telecontrol protocol, the raw data in the outstations is provided with a time tag and trans­mitted to the PCS 7 TeleControl OS (server/single station) acting as control center. Adaptation, further processing, and archiving are carried out here. This procedure is appropriate for the event-based principle of operation of the telecontrol protocol as well as the subsequent chronological processing of data previously buffered in the outstation.
Clock synchronization
The PCS 7 TeleControl OS is the clock master for the RTUs connected by means of SINAUT ST7, DNP3, IEC 870-5-101 or IEC 870-5-104, and regularly synchronizes their date and time via the telecontrol connection. Switching over between sum­mertime and wintertime is also considered during the syn­chronization.
Data buffering
The SINAUT ST7, DNP3, IEC 870-5-101 and IEC 870-5-104 telecontrol protocols support reliable on-site intermediate buffering of the data including time tag, e.g. if a communi­cation path is faulty or a station has failed. In addition, inter­mediate buffering of data can also be an effective means for reducing connection costs in the dial-up network.
A data update for all participating communication partners is performed automatically following debugging or restarting of the failed station. Important events are not lost, and the integrity of the control center archive is assured.
General/elementary telecontrol functions14

SINAUT ST7 telecontrol protocol

© Siemens AG 2011
6,0$7,&3&6ZLW K6,0$7,&3&67HOH&RQWURO
Industrial Ethernet
TIM 4R-IE
IP-based
WAN
S7-300 with TIM 3V-IE
SINAUT ST7 stations
Overview of SIMATIC PCS 7 TeleControl with SINAUT ST 7 telecontrol protocol
S7-400 and TIM 4R-IE
Classic
WAN
The telecontrol system based on the SINAUT ST7 telecontrol protocol is used for fully-automatic monitoring and control of widely distributed outstations (RTUs) which exchange data with each other and with one or more control centers over a wide variety of WAN (Wide Area Network) media.
SIMATIC S7-300/S7-300F and SIMATIC S7-400/S7-400F con­trollers are used for the outstations and node stations, and SIMATIC PCS 7 with SIMATIC PCS 7 TeleControl for the control center. Further hardware and software components round off the range of products:
• TIM communication modules
• MD modem modules
•GSM/GPRS components
• TCP/IP routers and switches
• SCALANCE S612 and S613 security modules
• Dedicated-line accessories
•Cables
G_PCS7_XX_00262
• SINAUT ST7 engineering software, comprising:
- SINAUT TD7 library with blocks for the data point objects of the SIMATIC S7 CPU or the TIM module
- SINAUT ST7 engineering package for configuration of stations, networks and connections as well as for diag­nostics
In order to implement complete hierarchical telecontrol net­works, the basic topologies of point-to-point, multi-point, star and ring can be configured using classic or also TCP/IP-based media, and combined flexibly independent of the infrastruc­tural conditions. SINAUT ST7 is thus distinguished by a wide range of possible selections and combinations.
SINAUT ST7 telecontrol protocol 15
TIM 4R-IE
TIM 3V-IE
MD 720-3
G_PCS7_XX_00264
MD720-3
MD720-3
MD720-3
MD720-3
MD720-3
TIM 4R-IE
Ethernet
RTU S7-400
TIM 4R-IE
RTU S7-400
RTU S7-300
TIM 3V-IE
RTU S7-300
Control center SIMATIC PCS 7 TeleControl
Option:
redundant
network access
in the master
station
Mobile wireless network
Dial-up
networ k via
wireless
© Siemens AG 2011
Control center SIMATIC PCS 7 TeleControl
Ethernet
RTU S7-400
MD2
TIM 4R-IE
RS 485
MD2 MD2
· · ·
TIM 4R-IE MD2
RTU S7-400
RTU S7-300 RTU S7-300
RTU S7-300
TIM 3V-IE MD2
· · ·
TIM 3V-IE MD2TIM 4R-IE MD2
SINAUT ST7 - example of classic dedicated network (star + multi-point topologies)
TIM 3V-IE
MD2
Range without repeaters (example) with conductor cross-section 0.8 mm
- 1 200 bit/s max. 33 km
- 2 400 bit/s max. 27 km
- 19 200 bit/s max. 11 km
Dedicated network with star topology
Star +
multi-point
G_PCS7_XX_00263
SINAUT ST7 - example of classic mobile radio network (GSM) with CSD data service (star topology)
Classic WAN media
• Dedicated copper line, private or rented
• Private radio network (optionally with time slot procedure)
• Analog telephone network
• Digital ISDN network
• Mobile radio network GSM
SINAUT ST7 telecontrol protocol16
MD741-1
Ethernet
TIM 3V-IE Advanced
RTU S7-300
TIM 4R-IE MD2
MD2
TIM 4R-IE MD2
RTU S7-400
Ethernet
TIM 4R-IE MD2
G_PCS7_XX_00266
SCALANCE
S612/613
Control center SIMATIC PCS 7 TeleControl
Radio network
GPRS
network
Dedicated line
Redundant transmission path: classic WAN + classic WAN
Control center SIMATIC PCS 7 TeleControl
Internet
Dedicated line
Redundant transmission path: classic WAN + TCP/IP-based WAN
Path
redundancy,
2 media
DSL router
© Siemens AG 2011
TIM 3V-IETIM 4R-IE
Control center
931WXQQHO
· · ·
TIM 4R-IE
RTU S7-300
TIM 3V-IE
SCALANCE
S612/613
RTU S7-400
SIMATIC PCS 7 TeleControl
Ethernet
DSL router
Firewall
RTU S7-300
SINAUT ST7 - example of secure TCP/IP-based connection over Internet via DSL (star topology)
DSL router
Firewall
Internet
Firewall
DSL router
SCALANCE S612/613
Star via Internet
G_PCS7_XX_00265
SINAUT ST7 - example of redundant telecontrol connections (point-to-point topology)
TCP/IP-based WAN media
• Special radio network optimized for Ethernet, e.g. with SCALANCE W industrial wireless LAN components
• SCALANCE X switches with optical ports and fiber-optic cables for distances up to 120 km
• Public network and Internet via DSL or GPRS
• Broadband system such as OTN, PCM30, etc.
To achieve redundant data transmission, it is also possible to connect an outstation via two transmission paths to the con­trol center in the SIMATIC PCS7 process control system or to a node station. It is irrelevant whether the two paths are of the same type or different, e.g. dedicated line with telephone net­work/ISDN and GPRS.
SINAUT ST7 telecontrol protocol 17
© Siemens AG 2011
Special characteristics of SINAUT ST7 communication
Up to 10 000 stations can be addressed with SINAUT ST7. Information on the source and target addresses is included in the message frames. The functionality of SINAUT ST7 communication is particularly characterized by the follow­ing features:
Change-driven data transmission
• Change-driven transmission of process data between RTUs as well as between an RTU and the control center
• Signaling of failures in connections, RTUs or the control center
• Automatic data updating for all communication part­ners involved following troubleshooting and following the startup of an RTU or control center
Chronological processing of process data
• Time tagging of all data frames at the place of origin al­lows process data to be archived by the process control system in the correct chronological order
• The time of the SINAUT ST7 stations in the WAN can be synchronized via SIMATIC PCS 7 (including summer­time/wintertime switchover)
Local data storage
• Depending on the version, the TIM communication module can temporarily store (for several hours or even days) up to 56 000 message frames should the connec­tion or the communication partner fail
• Intermediate storage of message frames of lower prior­ity in the case of priority-controlled data transmission (with dial-up networks or quantity-dependent data transmission costs)
Remote programming and remote diagnostics
• Remote diagnostics and remote programming over the WAN using the "PG routing" function
• PG routing shares the available bandwidth with the pro­cess data transmission, but has a higher priority
• Uploads, downloads, remote diagnostics, firmware up­grades or changes in automation functions on the sta­tions can be carried out online from the control center in SIMATIC PCS 7
Alarm output per text message
• The RTUs can send text messages depending on events in order to alarm personnel on call
• Receipt of messages can be acknowledged from a mobile phone
• Depending on the services offered by the mobile radio provider, the text message can also be output as an e-mail, fax or voice mail
SIMATIC water library: block symbol and faceplate for a valve
Technological configuration with the SIMATIC water library
The SIMATIC water library from Siemens supports effective configuration of the SIMATIC PCS 7 process control system with technological function blocks for implementing applica­tions for water supply and disposal.
These technological function blocks can now also be used on the basis of the SINAUT ST7 telecontrol protocol. The telecon­trol functions are integrated using additive blocks in the CFC, i.e. without modifying the existing technological function blocks or the associated block symbols and faceplates. The philosophy of SIMATIC PCS 7 TeleControl with regard to uni­form process control of central and remote units using an operator system is thus extended in the direction of uniform engineering. Standardization and reuse of the ready-made functions significantly reduces the requirements for engi­neering, testing and training, as well as maintenance and updating.
SINAUT ST7 telecontrol protocol18
Operating modes
© Siemens AG 2011
The communication mode between the control center and outstation (RTU) depends on the support provided by the tele­control protocol, the configuration of the telecontrol commu­nication, and the type of WAN.
The SINAUT ST 7 telecontrol protocol supports the following operating modes:
•Polling
- Control of data exchange by the TIM module of the con­trol center
- The TIM of the control center calls the outstations and node stations one after the other
- Stations with modified data (since the last transmission) send this when called
- Stations without modified data only acknowledge the call
- Transmission of control center data for the stations in between the calls
- Data exchange using internode communication between the stations is possible via the polling TIM of the control center
• Polling with time slot procedure
- Operating mode for a radio network with division of the radio frequency between several providers
- Typically 6 s/min (time slot) for each provider for data exchange
- Data exchange during the time slot is carried out as described under "Polling"
- Following the data exchange, the frequency swaps to the next provider
- Data exchange using internode communication between the stations is possible via the polling TIM of the control center
- Control of the polling TIM by DCF77 or GPS radio-con­trolled clock for exact observation of the time slot
• Spontaneous mode in dial-up networks
- Data from outstations and node stations can be assigned priorities for transmission in the dial-up network: normal, high, alarm
- Immediate establishment of a dial-up connection for data with alarm priority or high priority; priority trans­mission of alarm frames
- Intermediate storage of data with normal priority; trans­mission during the next dial-up connection with the part­ner in the original chronological order (FIFO principle)
- Transmitted data from the control center always has high priority
- Data exchange possible between the stations with direct internode communication
• Spontaneous mode in the TCP/IP-based WAN
- Establishment of a permanent S7 connection between two TIMs or between TIM and control center
- Exchange of SINAUT ST7-specific data packets via this S7 connection using S7 communication functions with application of the TCP/IP transport protocol
- If the data transmission costs are related to the data quantity, processing is carried out with priority as with spontaneous mode for dial-up networks: immediate transmission of data with high priority and alarm priority (latter with priority); collection of data with normal prior­ity and transmission in larger blocks
- If the data quantity is not cost-relevant, all data is trans­mitted immediately to the respective partner, i.e. with­out intermediate storage. Message frames with alarm priority then have priority.
• Multi-master polling with time slot procedure
- Operating mode for communication between outsta­tions and more than one control center via dedicated line or radio network
- Each control center is assigned one or more time slots per minute for polling
- Separate data buffer for each control center in the sta­tions (including node stations)
- Data exchange using internode communication between the stations is possible via the polling TIM of the active control center
- Redundant internode communication is possible; upon failure of the preferred control center, internode commu­nication is carried out via the TIM of the alternative con­trol center
- Each TIM of the control centers involved must be con­trolled by means of a DCF77 or GPS radio-controlled clock for exact observation of the time slot
SINAUT ST7 telecontrol protocol 19

DNP3 telecontrol protocol

© Siemens AG 2011
Widely distributed outstations (RTUs) can be controlled and monitored with the DNP3 telecontrol protocol via serial or Ethernet TCP/IP communication links by means of the tele­control center in SIMATIC PCS 7. The control center integrated with SIMATIC PCS 7 TeleControl into the operator system of the process control system is the master during telecontrol communication.
The slaves are represented by the outstations. SIMATIC S7-300/S7-300F and S7-400/S7-400F/S7-400H/S7-400FH controllers as well as third-party RTUs can be used as out­stations.
Control center SIMATIC PCS 7 TeleControl DNP3 master
Ethernet
RS 485
MD2
MD2 MD2
· · ·
Further hardware and software components round off the range of products:
• TIM communication modules
•TCP/IP converters – serial and MD modem modules
•GSM/GPRS components
• TCP/IP routers and switches
• SCALANCE S612 and S613 security modules
• Dedicated-line accessories
•Cables
• Engineering package for configuration of DNP3 data objects, stations, networks and connections as well as for diagnostics
In order to implement the telecontrol networks, the basic topologies of point-to-point, multi-point, star and ring can be configured using classic or also TCP/IP-based media, and com­bined flexibly independent of the infrastructural conditions.
Range without repeaters (example) with conductor cross-section 0.8 mm
- 1 200 bit/s max. 33 km
- 2 400 bit/s max. 27 km
TCP/IP to serial converter
- 19 200 bit/s max. 11 km
Dedicated network with star topology
RTU S7-400H RTU S7-400
TIM 4R-IE
DNP3 (slave)
DNP3 - example of classic dedicated network (star + multi-point topologies)
MD2
TIM 4R-IE
DNP3 (slave)
MD2
· · ·
Classic WAN media
• Dedicated line via modem, e.g. SINAUT MD2
• Private wireless networks
• Analog telephone network
• Digital ISDN network
• Mobile radio network GSM
RTU S7-300
TIM 3V-IE
DNP3 (slave)
RTU S7-300
TIM 3V-IE
DNP3 (slave)
MD2
MD2
Star +
multi-point
G_PCS7_XX_00267
DNP3 telecontrol protocol20
MD741-1
G_PCS7_XX_00269
Ethernet
RTU S7-300
TIM 4R-IE DNP3 (Slave) MD2
MD2
MD2
RTU S7-400
Ethernet
MD2
SCALANCE S612/613
Control center SIMATIC PCS 7 TeleControl DNP3 master
Control center SIMATIC PCS 7 TeleControl DNP3 master
Dedicated line
Redundant transmission path: classic WAN + classic WAN
Dedicated line
Redundant transmission path: classic WAN + TCP/IP-based WAN
Path
redundancy,
2 media
TCP/IP to serial
converter
TCP/IP to serial
converter
TIM 3V-IE Advanced
DNP3 (slave)
Radio network
GPRS network
Internet
DSL router
© Siemens AG 2011
Control center
DNP3 master
931WXQQHO
RTU S7-300
SCALANCE
S612/613
RTU S7-400H
SIMATIC PCS 7 TeleControl
Ethernet
DSL
Firewall
router
RTU S7-400
· · ·
TIM 4R-IE DNP3 (Slave)
DNP3 - example of secure TCP/IP-based connection over Internet via DSL (star topology)
TIM 4R-IE DNP3 (Slave)
TIM 3V-IE DNP3 (Slave)
SCALANCE S612/613
DSL router
Firewall
Internet
Firewall
DSL router
SCALANCE S612/613
Star via Internet
G_PCS7_XX_00268
DNP3 - example of redundant telecontrol connections (point-to-point topology)
TCP/IP-based WAN media
• Ethernet networks, e.g. SCALANCE X with fiber-optic cables
• Industrial Wireless LAN with SCALANCE W
• Public networks and the Internet using DSL and/or GPRS
To permit redundant data transmission, outstations can be connected to the SIMATIC PCS 7 TeleControl center over two paths.
DNP3 telecontrol protocol 21
© Siemens AG 2011
Special characteristics of DNP3 communication
Change-driven data transmission
• Change-driven transmission of process data between RTU and control center
• Signaling of RTU, control center or connection failure
• Automatic data updating for all communication part­ners involved following troubleshooting and following the startup of the RTU or control center
Chronological processing of process data
• Time tagging of all data frames at the place of origin al­lows process data to be archived by the process control system in the correct chronological order
• The time of the DNP3 stations in the WAN can be syn­chronized via SIMATIC PCS 7 (including summertime/ wintertime switchover)
Local data storage
• The TIM communication module can temporarily store (for several hours or even days) message frames should the connection or the communication partner fail
• Intermediate storage of message frames of lower priority in the case of priority-controlled data trans­mission (with dial-up networks or quantity-dependent data transmission costs)
Operating modes
The DNP3 telecontrol protocol supports the following operating modes (functional principle similar to that described in the section for the SINAUT ST7 telecontrol protocol):
•Polling
• Polling with time slot procedure
• Multi-master polling with time slot procedure
• Spontaneous mode in dial-up networks
• Spontaneous mode in the TCP/IP-based WAN
DNP3 telecontrol protocol22
© Siemens AG 2011

IEC 870-5-101/IEC 870-5-104 telecontrol protocol

SINAUT MD741-1
IEC 60870-5 -104
SIPLUS RIC Bundle with SIMATIC S7-400
DSL router
SCALANCE S612, security module
Control center
IEC 60870-5 -101
SINAUT MD2
Radio network
SIPLUS RIC Bundle with SIMATIC S7-300
SIPROTEC 7SJ63
SINAUT MD741-1
SIPLUS RIC Bundle with SIMATIC S7-300
IEC 60870-5 -103
SINAUT MD741-1
SIPLUS RIC Bundle with SIMATIC ET 200S
SIPLUS RIC Bundle with SIMATIC ET 200S
SINAUT MD2
Flexible communication options in the WAN with IEC 870-5-101/IEC 870-5-104 telecommunication protocols
A telecontrol center which is seamlessly integrated into the SIMATIC PCS 7 process control system by means of SIMATIC PCS 7 TeleControl can control and monitor geographically dis-
The performance of the telecontrol stations can be scaled with SIPLUS RIC bundles configured as slaves for the tele-
control link as shown below: persed outstations via serial (IEC 870-5-101 telecontrol proto­col) or Ethernet TCP/IP (IEC 870-5-104 telecontrol protocol) communication links.
SIMATIC S7 controllers (SIMATIC ET 200S with integral CPU, SIMATIC S7-300/S7-300F, and SIMATIC S7-400/S7-400F/ S7-400H/S7-400FH) as well as third-party RTUs can be used as
Performance
SIPLUS RIC Bundle with SIMATIC S7-400
outstations in this context. The control center is the master during communication with the outstations.
SIPLUS RIC Bundle with SIMATIC S7-300
The IEC 870-5-101 and IEC 870-5-104 telecontrol protocols are anchored in the telecommunication product range SIPLUS RIC. Based on specific libraries for telecontrol proto­cols, SIPLUS RIC comprises low-cost bundles for outstations
SIPLUS RIC Bundle with SIMATIC ET 200S
which are based on SIMATIC ET 200S with integral CPU, SIMATIC S7-300 or SIMATIC S7-400.
Parameterization of SIMATIC STEP 7
Scalable performance of SIPLUS RIC bundles
IEC 60870-5 -101
SINAUT MD2
SIPLUS RIC Bundle with SIMATIC S7-300
Data volume
G_PCS7_XX_00217
IEC 870-5-101/IEC 870-5-104 telecontrol protocol 23
© Siemens AG 2011
The SIPLUS RIC bundles usually comprise:
•CPU
• Interface/communication module (if necessary)
•Memory card
• CD with library and registration code.
SIPLUS RIC products require additional material to establish telecommunication links, e.g. TCP/IP converters – serial, dedicated line modems, media converters, TCP/IP routers, SCALANCE S612 and S613 security modules, switches, cables etc.
In order to implement telecontrol networks, basic topologies including point-to-point, multi-point, star and ring can be con­figured using classic or TCP/IP-based media. These can be combined flexibly independent from existing infrastructure.
Control center SIMATIC PCS 7 TeleControl
IEC 870-5-104
RTU S7-400
MD741
Ethernet
Internet
Classic WAN media
(IEC 870-5-101 telecontrol protocol)
• Dedicated line via modem, e.g. SINAUT MD2
• Dedicated line over fiber-optic cables
• Private wireless networks
TCP/IP-based WAN media
(IEC 870-5-104 telecontrol protocol)
• Ethernet networks, e.g. SCALANCE X with fiber-optic cables
• Industrial Wireless LAN with SCALANCE W
• Public networks and the Internet using DSL and/or GPRS
• Satellite communication, e.g. with Inmarsat
SCALANCE S613
DSL router
CP 443
Third-Party RTU
IEC 870-5-104 - example of TCP/IP-based WAN with GPRS radio network (star topology)
IEC 870-5-104
IEC 870-5-104
GPRS
radio network
RTU S7-300 with CP 343
MD741 MD741
IEC 870-5-104
RTU ET 200S with IM 151-8 PN/DP CPU
Star via
wireless
IEC 870-5-104
G_PCS7_XX_00270
IEC 870-5-101/IEC 870-5-104 telecontrol protocol24
© Siemens AG 2011
Control center SIMATIC PCS 7 TeleControl
SCALANCE S613
DSL router
MD741
RTU S7-300 with CP 343
RTU ET 200S with IM 151-8 PN/DP CPU
RTU S7-300 with CP 343
RTU S7-400 with CP 443
Ethernet
Internet
Third-Party RTU
IEC 870-5-104
IEC 870-5-104
GPRS radio
network
IEC 870-5-104 - example of complex TCP/IP-based WAN with cable and GPRS networks
It is also possible to connect an outstation via two transmis­sion paths to the control center in the SIMATIC PCS7 process control system to achieve redundant data transmission. Redundant transmission paths can be based on the same or different communication protocols.
IEC 870-5-104
MD741
IEC 870-5-104
RTU ET 200S with IM 151-8 PN/DP CPU
Complex network structure,
combination of different
topolo gies and m edia
G_PCS7_XX_00271
Control center
SIMATIC PCS 7 client
Terminal bus (Ethernet)
PCS 7 TeleControl OS server, redundant
Redundant system bus
TCP/IP to serial converter
RTU S7-300 with 2 x CP 343
RTU S7-400 with 2 x CP 443
IEC 870-5-104
RTU S7-400 with CP 443 (left) and CP 441
IEC 870-5-101IEC 870-5-104
RTU ET 200S with IM 151-8 PN/DP CPU and 1 SI interface module
RTU S7-300 with CP 343 (left) and CP 341
IEC 870-5-101/104 - example of redundant telecommunication links (IEC 870-5-101 representation without modems)
Path
redundancy,
1 medium
G_PCS7_XX_00272
IEC 870-5-101/IEC 870-5-104 telecontrol protocol 25

Modbus telecontrol protocol

© Siemens AG 2011
The Modbus telecommunication protocol is suitable for the integration of existing units with a Modbus infrastructure into the SIMATIC PCS 7 process control system.
Telecontrol communication for control and monitoring of widely distributed outstations (RTUs) from a control center in SIMATIC PCS 7 is possible with this protocol via both serial and TCP/IP communication links.
The control center, represented by the SIMATIC PCS 7 Operator System with SIMATIC PCS 7 TeleControl, is the Modbus master. SIMATIC S7 controllers (SIMATIC ET 200S with integral CPU, SIMATIC S7-300/S7-300F, and SIMATIC S7-400/S7-400F) as well as third-party RTUs with a suitable Modbus interface can be used as outstations (Modbus slaves).
The SIPLUS RIC range includes low-cost bundles for out­stations with Modbus telecontrol protocol (serial or TCP/IP), based on SIMATIC ET 200S with integral CPU and SIMATIC S7-300. These usually comprise:
•CPU
• Interface/communication module (if necessary)
•Memory card
• CD with library and registration code.
In addition, further material is required to establish the telecommunication links, e.g. TCP/IP converters – serial, dedicated line modems, media converters, TCP/IP routers, switches, cables etc.
The Modbus telecontrol protocol can be used to implement telecontrol networks based on point-to-point and multi-point topologies, both serial and TCP/IP. The following media can be used for this:
Classic WAN media
• Dedicated line via modem, e.g. SINAUT MD2
• Dedicated line over fiber-optic cables
• Private wireless networks
TCP/IP-based WAN media
• Ethernet networks, e.g. SCALANCE X with fiber-optic cables
• Industrial Wireless LAN with SCALANCE W
• Public networks and the Internet using DSL and/or GPRS
To permit redundant data transmission, outstations can be connected to the control center in the SIMATIC PCS 7 process control system over two paths. Two operating modes are available:
TCP/IP WAN router
SCALANCE
X101-1LD
Fiber-optic cable
SCALANCE
X101-1LD
SIMATIC S7-400 with
CP 443 and software library
(Modbus slave)
Control center Modbus master
TCP/IP to serial converter
SINAUT MD2
SINAUT MD2
SIPLUS RIC bundle with SIMATIC ET 200S (Modbus slave)
• Load sharing: parallel utilization of both paths
• Master/standby: only one path is active, the other is passive
SINAUT MD2
SIPLUS RIC bundle with SIMATIC S7-300 (Modbus slave)
Point-to-
point
Multi-point
G_PCS7_XX_00273
Modbus - example of serial and TCP/IP telecontrol connections (multi-point/point-to-point topologies)
Modbus telecontrol protocol26
© Siemens AG 2011

Redundancy

Increasing the plant availability

For the individual telecontrol protocols, reference was already made as to how the availability of telecontrol communication can be increased using redundant transmission paths. How­ever, as a result of seamless integration of the telecontrol technology into the SIMATIC PCS 7 process control system, the redundant design of the telecontrol communication is embed­ded in the redundancy concept of the complete system and must therefore be considered globally.
SIMATIC PCS 7 OS clients
Terminal bus
Control center SIMATIC PCS 7 TeleControl OS with redundant servers
The example of a SIMATIC PCS 7 process control system with integral telecontrol linking of RTUs on the basis of the IEC 870-5-101/IEC 870-5-104 protocols demonstrates the various possibilities for increasing plant availability:
• Redundant SIMATIC PCS 7 TeleControl OS servers for pro­cess control of central and widely distributed units and for archiving
• Redundant system bus for system communication
• Redundant telecontrol communication between control center and RTUs over two separate transmission paths
• Redundant RTUs on the basis of S7-400H/ S7-400FH con­trollers for local automation of remote units
• Redundant PROFIBUS for communication between control­ler and process I/O (I/O modules, process instruments and devices in the field)
• Redundant process I/O
It is also possible to implement safety-related functions in the RTU (up to SIL 3) based on the S7-400FH controller and F modules in the ET 200M remote I/O station.
Redundant system bus
TCP/IP to serial
converter
IEC 870-5-101
redundant
RTU S7-400H
ET 200M redundant with 2 x CP 341
Redundant telecontrol configuration based on the IEC 870-5-101/IEC 870-5-104 protocols
TCP/IP WAN router
IEC 870-5-104 redundant
RTU S7-400H with CP 443
ET 200M redundant
G_PCS7_XX_00274
Redundancy 27
Industrial Ethernet
TIM 4R-IE
S7-300
G_PCS7_XX_00180
S7-400 S5-115 S5-135/155
S5-100
IP-based
WAN
Classic
WAN
SINAUT ST7 stations SINAUT ST1 stations
6,0$7,&3&6ZLWK6,0$7,&3&67HOH&RQWURO
© Siemens AG 2011

Migration

Migration of existing telecontrol systems

Units with Modbus communication
The Modbus is widely used in automation plants due to its straightforwardness and openness. The Modbus telecontrol protocol can be used to implement both serial and TCP/IP com­munication links between a control center in SIMATIC PCS 7 and RTUs with a corresponding Modbus interface.
In this manner, existing units with a Modbus infrastructure can be integrated at low cost into the SIMATIC PCS 7 process control system. The RTUs of these units can be SIMATIC S7 controllers (SIMATIC ET 200S with integral CPU, SIMATIC S7-300/S7-300F and SIMATIC S7-400/S7-400F) as well as third-party RTUs. Whereas RTUs with Modbus TCP/IP interface can be integrated directly, serial third-party RTUs require spe­cific interface converters for telecontrol communication.
Engineering data of third-party RTUs can be imported in CSV format into the PCS 7 TeleControl engineering (DBA). The sta­tus of the RTUs and the transmission paths is evaluated by the "Diagnostics Modbus RTU" block and displayed in the control center.
SINAUT ST1 stations based on SIMATIC S5
During the migration of existing systems, it is possible to inte­grate outstations based on SIMATIC S5 into the SIMATIC PCS 7 process control system using SIMATIC PCS 7 TeleControl. In the process, the ST1 telecontrol protocol is converted into the ST7 protocol in the central TIM communication module.
Third-party stations
In addition to the Modbus telecontrol protocol, the DNP3 (serial and TCP/IP), IEC 870-5-101 (serial) and IEC 870-5-104 (TCP/IP) telecontrol protocols basically also support the con­trol center linking of third-party RTUs when migrating existing systems. The implementation depends on whether the third­party RTU masters the corresponding protocol and whether the interface converters are available if necessary.
Integration of SINAUT ST1 stations into telecontrol communication
Migration28
HMI
LAN
SINAUT LSX server (ST7)
© Siemens AG 2011
clients
SIMATIC PCS 7 TeleControlSINAUT LSX
PCS 7 clientsSINAUT LSX
PCS 7 Engineering System (DBA)
PCS 7
TeleControl
OS server
FEP Front End
AS
WAN
RTU
Integration of existing SINAUT LSX systems per PCS 7 TeleControl S7 EDC driver
Processor
S7-300
S7-400
S5 / ST1 (KOMSYS)
Node station TIM
S5-115
S7 (EDC)
S5-135
ST1 RTUs ST7 RTUs
Integration of third-party stations with OPC
Along with additive engineering performance on the basis of DBA technology, SIMATIC PCS 7 TeleControl also allows inte­gration of third-party RTUs for which an OPC server exists into the process control with the SIMATIC PCS 7 Operator System. SIMATIC PCS 7 TeleControl then supports data exchange between the operator system (OPC client) and the RTU (OPC server) per OPC DA.
DSL router
SCALANCE S612
Master TIM (ST7)
Control center
IEC 60870-5-104
SIMATIC PCS 7 S7-400
S7-300
S7-400
G_PCS7_XX_00275
SINAUT LSX systems
Existing SINAUT LSX systems can also be migrated with SIMATIC PCS 7 TeleControl. The SIMATIC S7 controllers with EDC communication protocol (Event Driven Communication) installed in the SINAUT LSX systems are then integrated into SIMATIC PCS 7 TeleControl per PCS 7 TeleControl S7 EDC driver. Because the SINAUT LSX system can coexist at all levels next to the new system architecture as long as necessary, modernization is possible step-by-step and without short­lived intermediate solutions.
Linking of SIPROTEC or third-party protection equipment
The protocol expansion IEC 870-5-103 Master for SIPLUS RIC bundles also allows interfacing of SIPROTEC or third-party pro­tective equipment via SIMATIC PCS 7 TeleControl. The RTU (ET 200S with CPU, S7-300 or S7-400 controller) then serves as a converter between the IEC 870-5-103 protection data protocol and the IEC 870-5-101 or IEC 870-5-104 protocol.
SINAUT
MD741-1
SIPLUS RIC bundle with SIMATIC S7-300
Example of interfacing of SIPROTEC protective equipment
SIPROTEC
7SJ63
IEC 60870-5-103
Compared to PROFIBUS DP interfacing of the protective equip­ment, this configuration provides the following advantages:
• Greater distances are possible.
• The highly exact time stamps are transferred from the pro­tective equipment to the control system.
Migration 29
G_PCS7_XX_00276
© Siemens AG 2011

Application examples

Automation of a gas pipeline with block valve and metering stations

Uniform automation of all stations in the gas network
SIMATIC PCS 7 process control system for compressor
and pressure reducing stations
SIMATIC PCS 7 TeleControl with SINAUT telecontrol tech-
nology on the basis of S7-300/S7-400 controllers for block valve and metering stations
Combination of process control at one operator station
(SIMATIC PCS 7 OS client)
Compliant process control with uniform faceplates,
alarms, trends etc.
High system availability resulting from redundancy
Redundant pair of SIMATIC PCS 7 OS servers
Redundant pair of SIMATIC PCS 7 TeleControl OS servers
Ring topology with redundant media Integral safety technology for emergency shutdown (ESD)
SIMATIC PCS 7
Engineering
Station
Industrial Ethernet
PROFIBUS
SIMATIC PCS 7 clients
SIMATIC PCS 7 FH controller
approx. 800 I/Os
Safety ESD
Compressor station
PCS 7 TeleControl OS server (redundant)
ESD is integrated homogenously into the automation plant (compressor and relief stations):
• Redundant safety-related controllers
• Redundant PROFIBUS with PROFIsafe
• ET 200M with F modules
Pipeline
Metering stations
S7-400
controller
approx.
100 I/Os
SINAUT TIM
Local station
RTU S7-300 incl. SINAUT TIM
approx. 30 I/Os
Block valve stations
Pipeline
Pressure reducing station
SIMATIC PCS 7 client
SIMATIC PCS 7 server (redundant)
SIMATIC PCS 7 FH controller
approx. 300 I/Os
Safety ESD
G_PCS7_XX_00277
System architecture of gas pipeline automation with SIMATIC PCS 7 TeleControl
Application examples30
© Siemens AG 2011

Automation of a sewage treatment plant with pumping station and stormwater overflow tank

Municipal sewerage system
Industry
Private
Pumping
households
station
Aeration
Preliminary sedimentation
Pre­thickening
Delivery of fecal matter
Stormwater overflow tank
Digestion tank Dosing of flocculent
Gasometer
Lifting equipment
Dosing of precipitant
Combined heat and power plant
Screen
Final clarification
Sludge dewatering
Preliminary sedimentation
Sand and grease trap
Sludge treatment
Mechanical
purification
Digestion tank
Biological
purification
Drainage
Sludge output
Symbolic technical representation of a sewage treatment plant
Uniform control of the complete wastewater network
• SIMATIC PCS 7 process control system in the sewage treat­ment plant
• SIMATIC PCS 7 TeleControl with SIPLUS RIC telecontrol tech­nology on the basis of the IEC 870-5-104 protocol
• Combination of process control at one operator station (PCS 7 OS client)
• Compliant process control with uniform faceplates, alarms, trends etc.
Secure communications
• Protection of telecontrol network by SCALANCE S613 industrial security module
• Application of GPRS technology
Reporting and archiving in compliance with AT V-D VWK M 26 0
With application of the SIMATIC PCS 7 add-on product ACRON
Cost-effective RTUs exactly matched to the respective unit
• S7-300 controller for pumping station
• ET 200S with integral CPU for stormwater overflow tank
Sewage plant
SIMATIC PCS 7 OS clients
Industrial Ethernet
PCS 7 TeleControl OS server (redundant)
Industrial Ethernet
SIMATIC PCS 7 controller
PROFIBUS I/O approx. 500 I/Os
Aeration blowing
station
PROFIBUS
SIMATIC PCS 7 controller
PROFIBUS I/O approx. 500 I/Os
Inflow
pre-treatment
System architecture of sewage treatment plant automation with SIMATIC PCS 7 TeleControl
SIMATIC PCS 7 controller
PROFIBUS I/O approx. 500 I/Os
Sludge
treatment
DSL router
SCALANCE S613
Internet
MD741
IEC 870-5-104
S7-300 approx. 150 I/Os
Pumping station
IEC 870-5-104
GPRS
MD741
IEC 870-5-104
ET 200S with IM 151-8 CPU approx. 25 I/Os
Stormwater overflow tank
Local
station
Local
station
G_PCS7_XX_00278
Application examples 31
© Siemens AG 2011
Additional information
SIMATIC controllers:
www.siemens.com/simatic-controller
SIMATIC automation systems:
www.siemens.com/simatic
Totally Integrated Automation:
www.siemens.com/totally-integrated-automation
SIPLUS extreme – ruggedness and refinement:
www.siemens.com/siplus-extreme
Service and Support:
www.siemens.com/automation/service&support
SIMATIC contacts:
www.siemens.com/automation/partner
Information material to download:
www.siemens.com/simatic/printmaterial
SIMATIC Guide Manuals:
www.siemens.com/simatic-docu
Ordering on the Internet with the Industry Mall:
www.siemens.com/industrymall
Siemens AG Industry Sector Industrial Automation Systems P.O. Box 4848 90026 NUREMBERG GERMANY
Subject to change without prior notice Order No.: E86060-A4678-A281-A1-7600 3P.8315.58.04 / Dispo 09508 BR 0111 3. ERD 32 En Printed in Germany © Siemens AG 2010
www.siemens.com/automation
The information provided in this brochure contains descriptions or characteristics of performance which in case of actual use do not always apply as described or which may change as a result of further development of the products. The desired features are only binding if explicitly agreed in the contract. Availability and technical specifications are subject to change without notice. Any product names mentioned may be trademarks or product designations of Siemens AG or their suppliers, whose use by third parties for their own purposes may infringe the rights of the trademark owners.
Loading...