Wireless Profibus via GPRS

Schildknecht AGwww.schildknecht.info

(Vorstand Dipl.Ing. Thomas Schildknecht)

Profibus via GPRS Schildknecht AG 2

Profibus market growing

wireless profibus in steal industry Schildknecht AG 3

Forcast Profibus market growing

SPS Magazin 4/2009Profibus growing 2008 -201225 Mio to 50 Mio

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Koexistenzlanung

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Device combinations Dataeagle 2000 family

SIEMENS S7

SIEMENS S5 E/A DATASNAKE TBOX SIEMENS S7

2,4 GHz (WLAN/Bluetooth/Zigbee) 5,8GHZ 1,9 GHz 448/459 MHz 868MHz GPRS/GSM

DATAEAGLE ALS BEDIENGERÄT

Profibus, MPI, 3964R, Ethernet, MODBUS, L1

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SIEMENS S7

SIEMENS S7

ProfibusInternet

Mobilphone GPRS

Profibus

Ethernet

GPRS

DSL:

Fix IP adress or dyndns option

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Device combinations

SIEMENS S7

Profibus/MPI

Internet

Mobilphone GPRS

GPRSMobilphone GPRS

GPRS

Profibus/ MPI

Service ProviderWhite /MDEX

SIEMENS S7

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Gateway Profibus/GPRS

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Radiomodem as profibus DP slave

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Wireless QoS classification ISA-100

•class 0 Emergency action always critical

•class 1 Closed loop regulatory control often critical

•class 2 Closed loop supervisory control usually non-critical

•class 3 open loop control human in the loop

•class 4 Alerting / Visualisation e.g. event-based maintance

•class 5 Logging, Up- Download historic data collection

Application Description

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What is the difference between teleservice and closed control loops in GPRS world?

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Remote maintenanceCyclic data communication

M2M tarif from T-Mobile

Source: Insys GmbH

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Calculation with normal M2M tarif

100 Byte / 10 sec = 260MB /month

230MB * 3.- € = 690.- €/Month = 8280.- €/year

260MB ./. 30 MB free = 230MB

This is best case calculation!

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New tarif from T-Mobil (12/2008)

5GB Flatrate 40.- Euro / month

No Voice over IP

Over 5GB: limitation of up/download speed

No fix IP adress possible: additional mdex option for Fix IP

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Results

GPRS is excelent for teleservice, up –and download, alerting

From all availible mobilphone proposals only one special tarif is availible with a flatrate from 5GB

use as communication way between PLC´s you can´t use typical mobile phone providers and systems

Keep in mind: “No Wires” doesn´t mean “no Problems!”You have to know what you do!

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Thanks for listening

More Information:

www.schildknecht.info