Vega VEGAMET 624 - 9 Measured Value Transmission to a WEB-VV Server; Prerequisites; Signal Conditioning Instrument (RS232) with Analogue;Gsm;Gprs Modem

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9MeasuredvaluetransmissiontoaWEB-VVserver
RS232/Ethernet connection • VEGAMET 391/624/625, VEGASCAN 693, PLICSRADIO C62
30325-EN-130701
9 Measured value transmission to a WEB-VV
server
9.1 Prerequisites
Themeasuredvaluesderminedbythesensorsarefurtherprocessed
bythesignalconditioninginstrumentandcanbetransferredtoa
WEB-VVserver.Forthispurpose,oneofthefollowingsignalcondi-
tioninginstruments,includingoneoftheoptionalinterfaces(RS232or
Ethernet),isrequired.
•
VEGAMET 391/624/625
•
VEGASCAN 693
•
PLICSRADIO C62
ThetransmissionofreadingsisgenerallycarriedoutviaanInternet
connection,independentoftheinterfacetypeoraccessmode.The
connectionalternativescanbesubdividedintothefollowingthree
groups:
•
SignalconditioninginstrumentwithRS232interfaceandana-
logue/GSM/GPRSmodem
•
SignalconditioninginstrumentwithEthernetinterfaceandMoRoS
(ModemRouterSwitch)
•
SignalconditioninginstrumentwithEthernetinterfacedirectlycon-
nectedtothecompanynetwork
Theselectionofthemostsuitableconnectionalternativeisdepend-
entonthelocalconditionsandthefrequencyofthemeasuredvalue
transmission(refreshrate).If,forexample,notelephoneconnection
ornetworkwithInternetconnectionisavailable,thetransmissioncan
onlybecarriedoutviaawirelessmodem.Thisofcourserequiresthat
sucientnetworkcoveragebyamobilecommunicationsprovider
existsatthesite.WhentransmissioniscarriedoutviaGSM,charges
areusuallybasedontherequiredtime.Forexample,ifonemeasured
valueistransmittedeveryhour,sizeableconnectioncostswillbe
incurredeverymonth.IfGPRSisavailable,thistransmissionvariant
shouldbechosen–thecostsareconsiderablylowerbecausethe
chargesarebasedonthetransmittedvolume,usuallyviaaatrate.
9.2 Signal conditioning instrument (RS232) with
analogue/GSM/GPRS modem
Thisalternativeisusedwhenonlyonesignalconditioninginstru-
menthastobeconnectedtoWEB-VVandnocompanynetworkwith
Internetaccessisavailable.Thesignalconditioninginstrumentmust
beequippedwiththeRS232interfaceoption.
Theoptionofremoteparameterisationisalsoavailable,i.e.,thesignal
conditioninginstrumentandthesensorscanbeaccessedfromout-
sidethesystem.Thisallowssettingsforremotetransmissionaswell
asparameterisationofthesignalconditioninginstrument/sensortobe
carriedoutorchangedfromadistantlocation.
Thechoiceofmodemdependsonthelocalconditions.Ifananalogue
telephoneconnectionisavailableonsite,ananaloguemodem(PSTN
Signal conditioning
instruments
Connection types