VTK‐VS‐BA‐004e‐B|UserManualMDS3200A | Communication Interfaces
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7 COMMUNICATIONINTERFACES
7.1 SerialInterfaceRS‐232C:9‐PinSub‐D
ThislocalinterfaceisstructuredaccordingtoSCPIStandard.These“StandardCommandsfor
ProgrammableInstruments“representastandardizedsetofinstructionsusedforcontroland
programming,transmittedinformofASCIItext.Theycanbegeneratedbyanyselectablepro‐
gramminglanguageinanyenvironment.Theserialinterfaceis
operatedbymeansofsoftware
handshake.Thehardwarehandshakecommunicationsarenotinuse.
INFORMATION!(Communicationwhiletriggering)
Theusershouldbearinmindnottosendinstructionsthroughthisinterfaceinthecourseofarun‐
ningdispensingcycle.Communicationisonlypossiblebetweendistinctsequences.
Aftersendingdata
orparameterstothecontrolunityouhavetowaitforthe“OK”signalbefore
youcanstartfurtheractions.
7.1.1 FunctionsAllocatedtothedifferent Pins
PIN Characteristics Level Function
1 Reservedforfutureuse
___________ ___________
2 Input TX Serialtransmissionsignal
3 Input RX Serialreceptionsignal
4 ConnectedtoPIN6
5 Ground Ground
6 ConnectedtoPIN4
7
___________
___________
___________
8
___________
___________
___________
9
___________
___________
___________
TheMDC3200ARS‐232ClogusesRS‐232CStandardandisdesignedforcommunicationby
meansofaserialcable,connected1:1,withaSub‐D9pinconnector.
ThefollowingparameterconfigurationisusedforMDC3200Acommunication:
Synchronousmode:Half‐duplex
Bits/s:9600
Startbit:1
Stringlength:8bit(ASCII)
Parity:None
Stopbit:1
Log:None