Icp das usa Mdc-700 series User manual

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MDC‐700SeriesUserManual

Nov.2015,Version1.0.2

WrittenbyLiamLin

EditedbySunnyChiu



Warranty

AllproductsmanufacturedbyICPDASarewarrantedagainstdefectivematerialsforaperiodofone

yearfromthedateofdeliverytotheoriginalpurchaser.

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Warning

ICPDASassumesnoliabilityfordamagesconsequenttotheuseofthisproduct.

ICPDASreservestherighttochangethismanualatanytimewithoutnotice.Theinformation

furnishedbyICPDASisbelievedtobeaccurateandreliable.However,noresponsibilityisassumed

byICPDASforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesresulting

fromitsuse.

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ContactUs

Ifyouhaveanyquestions,pleasefeelfreetocontactusviaemailat:



[email protected]

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Contents

1.Introduction ........................................................................................................................................ 4

1.1.Specifications ........................................................................................................................... 7

1.2.Dimensions .............................................................................................................................. 8

1.3.Appearance.............................................................................................................................. 9

2.Configuration .................................................................................................................................... 13

2.1.AssigninganIPaddresstoMDC‐700 ..................................................................................... 14

2.2.Editingtheconfig.csvfile ....................................................................................................... 16

2.3.Importing/exportingtheconfig.csvfile................................................................................. 21

3.4.ConnectingtotheWebHMI.................................................................................................. 23

3.Troubleshooting ................................................................................................................................26

4.FAQ.................................................................................................................................................... 29

Q1:Whatarethemaximumnumbersofpollingdefinitionandlocalregister?........................... 29

Q2:WhatisthemaximumnumberofregisterscanbeaccessedinoneModbuscommand?.... 29

Q3:HowarethelocalregistersmappedtothepolleddatainaMDC‐700?................................ 30

Q4:HowtowritedatatooutputchannelsonaModbusRTUslavedevice?............................... 32

Q5:Howtoreadthestatusofeachconnection? ......................................................................... 33

RevisionHistory .................................................................................................................................... 34

1.Introduction



TheMDC‐700seriesmoduleisaModbusDataConcentratorwhichcanconcentratedatafrom

severalModbusRTUslavedeviceswithRS232/RS‐485interfaceandallowsModbusTCPmastersto

read/writedataviaEthernet/LAN.TheModbusmastercanuseoneModbuscommandtogetalldata

onthoseModbusRTUslavedevicesviatheMDC‐700concentrator.Inotherwords,throughthehelp

ofaMDC‐700module,theModbusRTUslavedevicescanbeaccessedoverEthernetwithbetter

readandwriteperformance.



TheMDC‐700seriesmodulehastheabilitytoperformupto240ModbusRTUcommandsto

read/writedatafrom/toModbusRTUslavedevicesandallowsupto8ModbusTCPmasterstoget

thepolleddata.ThesupportforModbusTCPprotocolmakestheMDC‐700wellintegratedinto

PC‐basedapplicationssuchasSCADA(SupervisorControlandDataAcquisition)andHMI(Human

MachineInterface)programs.

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Features

Web‐basedInterfaceforOperatingandShowingClearInformation

Byusingaregularwebbrowser,userscanchangetheIPaddress,import/exportthe

configurationfile‐config.CSV,checktheaddressmappedforpolleddataandconnection

statusofeachpollingdefinition.TheMDCfirmwarewillskiptheabnormalModbus

pollingdefinitionforawhiletosmoothlyperformthewholepollingwithoutdistribution.



GreatCapabilityofSharedMemory

TheMDC‐700seriesmodulecanperformupto240pollingdefinitions.Andthe

internalsharedmemoryhasfourtablestostorethepolledAI,AO,DIandDOdata.

Eachtablecanstoreupto9600registers.

Config.CSVtoEaseHardWorkofEditingalotofDefinition

SupportforModbusTCPMasterandModusRTUMaster

TheModbuspollingdefinitionisdefinedinaConfig.CSVfile.Editing/checkingalotofpolling

definitionsisahardworkanditmaybemakingmistakes.ACSVformatfilecaneasethework

byusingExcel.Furthermore,thebuilt‐inwebserverallowsuserstoimport/exportthe

Config.CSVviaasimplemouse‐clickaction.

TheMDC‐700canbeaccessedbyModbusTCPMasterandModusRTUMaster.Changingthe

modeforaCOMportfromMastertoSlaveallowsaconnectedModusRTUMasterto

read/writedatafrom/totheModbusRTUslavedevicesontheotherCOMports.

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1.1.Specifications

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MDC‐711MDC‐714MDC‐741

Ethernet

Portx1,10/100Base‐TX

ProtocolModbus/TCPSlave

Max.Connection8

COMPort

RS‐232x1,(TXD,RXD,RTS,CTS,GND)x4,(TXD,RXD,RTS,

CTS,GND)

RS‐485x1,(Data+,Data‐)x4,(Data+,Data‐)x1,(Data+,Data‐)

BaudRate1200,2400,4800,9600,19200,38400,57600,115200(bps)

DataFormatN81,E81,O81

ProtocolModbusRTUMaster

Max.Node32nodesforeachRS‐485port

PollingDefinition240definitionsforallRS‐232/485ports

SharedMemory9600registersforeachofAI,AO,DIandDODataSystem

System

5‐Digit7SegmentLED

Display

Yes,todisplayIPaddress

SystemLEDIndicatorYes,todisplayheartbeat

Mechanical

Dimension(WxHxD)102mmx125mmx28mm

InstallationWallMount

Power

RequiredSupply

Voltage

+10VDC~+30VDC(non‐regulated)

PowerConsumption2.5W

Environment

OperatingTemperature ‐25°C~+75°C

StorageTemperature‐30°C~+80°C

Humidity10~90%RH,non‐condensing

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1.2.Dimensions



LeftSideViewFrontView

TopView

BottomViewRearView

Unit:mm

1.3.Appearance

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Connectors:(ForMDC‐714/MDC714)

COM3

COM4

COM5

LEDIndicator

ConfigurationDisplay

Connectors:

Power

COM2

Reset

COM1

EthernetPort



LEDIndicator

TheLEDisusedasaheartbeatindicatorandslowstoapproximatelyoneflashpersecond.

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EthernetPort

TheMDC‐700isequippedwithaRJ45portforEthernetLAN

connection.When100BASE‐TXisoperating,the10/100MLED

islitorange.When10BASE‐Tisoperatingorthemachineis

notconnectedtothenetwork,itisturnedoff.Whenan

EthernetlinkisdetectedandanEthernetpacketisreceived,

theLink/ActLEDislitgreen.



PowerConnector





ConfigurationDisplay

MDC‐700includesa5‐digit7‐SegmentLEDdisplaytoindicateconfigurationinamoduleas

below:



11111.

1.192

2.168

3.255

4.1

22222.

502

001

33333.

1.1152

2.1152

44444.

1.801

2.801

55555.

00

yTheIPaddressfortheMDC‐700

(192.168.255.1)

yModbusTCPcommunicationsettings

Port:502

NetID:1

yBaudratesettingforeachCOMport

COM1:115200bps

COM2:115200bps

yDataformatsettingforeachCOMport

COM1:8N1

COM2:8N1

yThecountofTCP/IPconnection

0:NoTCP/IPconnection



Reset



ShortingtheRESETpintoGNDpinover3secondscan

resettheIP/SubnetMask/Gatewayaddressestothe

factorydefaultsettings.



RS‐232Wiring



3‐wireConnectionWiring



5‐wireConnectionWiring



RS‐485Wiring

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2.Configuration

ThenecessaryconfigurationforModbusTCPcommunication,ModbusRTUcommunicationand

pollingdefinitionishandledbyasinglefilenamed“config.csv”.Justfollowtheeasy‐to‐useformat

definedintheconfig.csvfileandimportthenewconfig.csvfileviaasimplemouse‐clickonthemain

pageoftheMDC‐700,thedataonthoseModbusRTUslavedevicescanbeaccessedoveran

Ethernet.



OnlytheFunctioncode01/02/03/04canbeusedintheconfig.csvfile:

01:ReadCoilStatus(ReadDO)

02:ReadInputStatus(ReadDI)

03:ReadHoldingRegisters(ReadAO)

04:ReadInputRegisters(ReadAI)



IfyouwouldliketowritedatatoadigitaloranalogoutputchannelonaModbusRTUslavedevice,

theoutputchannelneedsbemappedwithalocalregisteraddressintheMDC‐700byeditingthe

pollingdefinitionwithusingcorrespondingreadfunctioncode(01or03).RefertoQ4inthe4.FAQ

sectionformoredetailedinformation.



ThefollowingsectionwillhelpyoutosetupyourMDC‐700module,andshowyouhowtousethe

webinterfacetoobtainconfigurationandotherinformationrelatedtotheMDCmoduleand

associatedslavedevices.



Basicoperatingprocedure

Step1:AssignavalidIPaddresstotheMDC‐700.

Step2:Edittheconfig.csvfile.

Notethatbeforeeditingthisfile,youshouldconfirmtheparametervalueforany

associatedSlavedevices.

Step3:Uploadtheconfig.csvfiletotheMDCmodule.

Step4:Verifythestatusofboththeconnectionandtheconfigurationbybrowsingtheweb.

2.1.AssigninganIPaddresstoMDC‐700

TheMDC‐700isanEthernetdevice,whichcomeswithadefaultIPaddressof192.168.255.1;

therefore,youmustfirstassignavalidIPaddressofyournetworktothemodule.Toaccessthe

MDC‐700byusingweb‐basedinterface,youhavetoknowtheIPaddresssettinginthemodule.



STEP1:ConnectthePCandMDC‐700moduletoanEthernetHub/Switch,andpoweronallthe

devices.YoucanalsoconnectaMDC‐700toPCdirectlywithanEthernetcable.



STEP2:SettheIPconfigurationonyourcomputer.

IftheMDCmoduleisnewwithusingthedefaultIPaddressof192.168.255.1,youmustchose

anIPaddressforthecomputerintherangeof192.168.255.2–192.168.255.253thatisnot

alreadyinuse.



NOTE:DetailsonhowtochangetheIPaddressonyourcomputerdependuponthetype

architectureandoperatingsystemyouareusing.UsetheHelpandSupportfunctionalityon

yourcomputerandsearchfor"IPAddressing".



STEP3:Openawebbrowserandgotothewebsiteathttp://192.168.255.1,where192.168.255.1is

theIPaddressinyourMDCmodule.



STEP4:OpentheIPaddressconfigurationinterfacebyclickingon“EthernetConfiguration”.



STEP5:ChooseavalidIPaddressofthenetworkforyourMDCmodule,inputtheIP/Subnetmask

andGatewayaddressesandclickonthe“Apply”button.MakesurethattheIPaddressyou

pickisnotcurrentlyinusebyanotherdeviceonthenetwork.



NOTE:TheIP/Subnetmask/GatewaymodifiedinaMDC‐700canberesettofactorydefaults

byshortingtheRESETpintoGNDpinover3seconds.TheLEDdisplaywillshow“RESET”as

belowandtheIPaddresssetpreviouslywillbeclearedandreturnedtothefactorydefault.

 



2.2.Editingtheconfig.csvfile

TheMDCmoduleisconfiguredbyaconfig.csvfiletoworkwithyourmasterandRTUslavedevices.

TheCommaSeparatedValues(CSV)filescanbeviewedandeditedinspreadsheetapplicationslike

MicrosoftExcel,orinanytexteditor,inwhichthecommacharacter(,)typicallyseparateseachfield

oftext.Inatexteditor,itlookslikethis:



Thefilename“config.csv”cannotbechanged;itcontainsfourmainsectionsthatneedtobeedited:

(1)ModbusConnection,(2)Moduleinformation,(3)COMPortConfigurationand(4)Polling

Definition.Eachsectionstartswitha“#”character;followsarenamesforparametersinthissection.

Arowstartingwitha“*”characterisasetofsettingsinasection.

NOTE:

yThenameforeachparametercannotbechanged.

yYoucanmakeacopyoftheconfig.csvfileinthreewaysandmodifyittomeetyour

requirements:

1.Exporttheconfig.csvfileinyourMDC‐700.(See2.3.Importing/exportingtheconfig.csvfile)

2.MakeacopyfromthecompanyCD:\Napdos\Modbus\MDC700\firmwarepath.

3.Downloadthefilefrom

http://ftp.icpdas.com/pub/cd/8000cd/napdos/modbus/mdc700/firmware/.



Whatfollowsarethedetaileddescriptions:



ModbusConnection

TheModbusConnectionsectionisusedtoconfiguretheModbusIDoftheMDCmoduleandthe

TCP/IPPortnumberforModbusTCPcommunication.



TCPPort:DefinestheTCP/IPPortnumber,intheexamplesetto502.

ModbusID:DefinestheModbusIDoftheMDCmodule,intheexamplesetto1.



ModuleInformation

TheModuleInformationsectionisusedtorecordrelativeinformationfortheMDCmodule.Itwillbe

displayedonthemainpageoftheMDC‐700,andcanbeusedtooneMDCmodulefromtheothers.



#ModuleInfo

*thisismydataconcentrator

#TCPPortModbusID

*5021

ModuleInfo:DefinetherelativeinformationfortheMDCmodule.Thestringconstanthasa

maximumlengthof32characters.



COMPortConfiguration

TheCOMPortConfigurationisusedtoconfiguretheparametersfortheRS‐485Modbus

communicationconnectionbetweentheMDCmoduleandtheRTUslavedevices.



ComPortNoBaudRateDataBit#Parity StopBit Timeout PollDelayOperatingMode

*111520080 1 100 20Master

*211520080 1 100 20Master

*311520080 1 100 20Master

*411520080 1 100 20Master

*511520080 1 100 20Master



TheconnectionconfigurationforaCOMportconsistsof8parametersdefinedasfollows.

ComPortNoSpecifiestheCOMportnumberinMDCmodule.TheCOMportnumbercanbe1

or2forMDC‐711,andcanbe1,2,3,4or5forMDC‐714andMDC‐741.

BaudRateDefinesthetransmissionspeedbetweentheMDCmoduleandtheRTUslave

devices.TheBaudRatecanbesetto1200/2400/4800/9600/19200/34800/

57600/115200(bps)dependingontheRTUslavedevicebeingused.

DataBitDefinesthenumberofdatabitsineachcharacter.Itisfixedto8andtheRTUslave

devicesneedbesetto8‐bitdata,too.

ParityDefinestheParitybit.Theparitybitcanbesetto0(none),1(even)or2(odd).

StopBitDefinestheStopbits.Itisfixedto1,onestopbit.

TimeoutDefinestheperiodoftimethattheMDCmodulewillwaitforaresponsefromthe

RTUslavedevice.Theavailablerangeisfrom20to6000(ms).

PollDelayDefinesthePollDelaybetweeneachscanforModbusRTUcommunication.

Theavailablerangeisfrom5to600(ms).

OperatingModeDefinestheoperatingmode.

‐Master:thecomportisusedtoconnectModbusRTUslavedevices.

TheMDC‐700isactingasamastertosendrequeststoslavedevices.

‐Slave:thecomportisusedtoconnectModbusRTUmasterdevices.

Themasterdevicescanread/writedatafrom/totheMDC‐700.



PollingDefinition

ThePollingDefinitionisusedtodefineModbuscommandstoreaddatafromtheslavedevices.

BeforeattemptingtoconfiguretheparametersforthePollingDefinition,besuretochecktheCom

portnumberthatthetargetdeviceisconnectedto,theModbusIDsettingforthetargetdevice,and

thefunctioncode,startaddress,andthequantityforreadingdata.



#UseComPortSlaveModbusIDFunctionCode RegStartAddr RegCount

*111 0 8

*112 0 8

*221 0 4

*332 0 4

*443 0 4

*554 0 4



EachPollingDefinitionconsistsof6parameterslistedasbelow:

#Definesthetypeforapollingdefinition.IntheMDC‐700,itprovidesthreetypes:

“*”:Asterisksymbolmeansthatthisisavalidpollingdefinition.TheMDC‐700will

assignlocalregisterfordatadefinedinthedefinitionandsavethepolleddata

tothemappinglocalregister.

“‐”:Minussignmeansthatthisisadisabledpollingdefinition.TheMDC‐700will

assignlocalregisterfordatadefinedinthedefinitionbutwillnotpolldata.

“”:Emptymeansthatthisisanullpollingdefinition.TheMDC‐700willneither

assignlocalregisterfordatadefinedinthedefinitionnorpolldata.

UseComPortDefinestheCOMportnumbertowhichtheslavedeviceisconnected.TheCOM

portnumbercanbe1or2forMDC‐711,andcanbe1,2,3,4or5forMDC‐714

andMDC‐741.

SlaveModbusIDDefinestheidentificationoftheremoteslave.Thevalidrangeisfrom1to255.

FunctionCodeDefinestherequestfunctioncode.Avalidcodecanbe1(ReadDO),2(ReadDI),3

(ReadAO)or4(ReadAI)dependingontheI/Ofeaturesoftheslavedevice.

RegStartAddrDefinesthestartingaddress,i.e.theaddressofthefirstregisterspecified.

Theavailablerangeisfrom0to9599.

RegCountDefinesthequantityofregisterstoberead.Theavailablerangeisfrom1to64.



NOTE:

yThemaximumnumberofallthepollingdefinitionsis240.

yTheMDCmoduleprovides9600internalModbusregisterseachtable(DI/DO/AI/AO)tohold

datacollectedfromtheRTUslavedevices.

yTheModbusIDfortheMDCmoduleisdefinedinModbusConnectionsection.

yBysettingdifferenttypesforapollingdefinitiontoretainregisterspacemappedforspecific

devices,ortoreleasethosespacemappedbutreservethedefinition,themainprogramonthe

Modbusmasterdevicecanbeappliedindifferentapplicationswhereuserswouldliketochange

orstopsomedeviceswithoutmodificationorwithminimumlevelofmodification.



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