Siemens SIMATICS PCS7 brochure Special characteristics Sinaut ST7 communication

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© 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 follow- ing 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 part- ners 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 al- lows 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 summer- time/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 connec- tion or the communication partner fail

Intermediate storage of message frames of lower prior- ity 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 pro- cess data transmission, but has a higher priority

Uploads, downloads, remote diagnostics, firmware up- grades or changes in automation functions on the sta- tions 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

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 applica- tions for water supply and disposal.

These technological function blocks can now also be used on the basis of the SINAUT ST7 telecontrol protocol. The telecon- trol 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 uni-

form process control of central and remote units using an

SIMATIC water library: block symbol and faceplate for a valveoperator system is thus extended in the direction of uniform engineering. Standardization and reuse of the ready-made functions significantly reduces the requirements for engi- neering, testing and training, as well as maintenance and updating.

18SINAUT ST7 telecontrol protocol

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Contents Simatic PCS Totally Integrated Automation Totally Integrated AutomationContents Automation of widely spread process plants Simatic PCS 7 TeleControlProcess control system with integral telecontrol center Simatic PCS 7 TeleControlTypical application areas Oil and gas industriesWater industry Integration in process control Engineering Simatic PCS 7 TeleControl system architectureSystem overview Communication with the outstations remote terminal unitsOutstations remote terminal units Simatic S7-300/S7-300F controllersSimatic S7-400/S7-400F controllers Spectrum of outstations and integration versions Media versions TopologiesBasic topologies Combinations of basic topologies and media versionsSingle-user and multi-user systems Simatic PCS 7 TeleControl system componentsPCS 7 TeleControl Operator System Dual-channel operationLong-term archiving and logging PCS 7 TeleControl engineering station Data Base Automation DBASimatic PCS 7 TeleControl blocks RTU Medium Simatic S7-300/S7-300F controller Remote terminal unitsPossible tele Information points RTU Large Simatic S7-400/S7-400F controllerTelecontrol protocols General/elementary telecontrol functionsSinaut ST7 telecontrol protocol Sinaut ST7 telecontrol protocolClassic WAN media Range without repeaters exampleTCP/IP-based WAN media Redundant transmission pathSpecial characteristics Sinaut ST7 communication Technological configuration with Simatic water libraryOperating modes DNP3 telecontrol protocol 20 DNP3 telecontrol protocolDNP3 telecontrol protocol ScalanceSpecial characteristics of DNP3 communication 22 DNP3 telecontrol protocolIEC 870-5-101/IEC 870-5-104 telecontrol protocol IEC 870-5-101/IEC 870-5-104 telecontrol protocolClassic WAN media IEC 870-5-101 telecontrol protocol TCP/IP-based WAN media IEC 870-5-104 telecontrol protocolRTU ET 200S Modbus telecontrol protocol Modbus telecontrol protocolRedundancy Increasing the plant availabilityRedundancy Units with Modbus communication MigrationMigration of existing telecontrol systems Third-party stationsIntegration of third-party stations with OPC Sinaut LSX systemsLinking of Siprotec or third-party protection equipment High system availability resulting from redundancy Application examplesUniform automation of all stations in the gas network Application examplesReporting and archiving in compliance with Cost-effective RTUs exactly matched to the respective unitAdditional information