欧姆龙plc数据类型

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1、欧姆龙PLC数据类型　　欧姆龙plc数据类型　　　　BOOLAddressofabinarybit-alogicalBooleanonoroffstate.Thistypeistypicallyusedforcontactsorcoils.　　CHANNELThisisaspecialdatatype,forbackwardcompatibility.Itisanaddress(non-bit)todataofanytype(unsignedorsigned,oneormorewords),socanbeusedinpla

2、ceofanyoftheabovedata-typesexceptNUMBERandBOOL.Thedatatypeisweak,andsocheckingislimited(e.g.CX-ProgrammercannotcheckiftheaddressisbeingusedforBCDorbinaryvalues).　　DINTAddressofasigned,doublebinaryword.　　INTAddressofasigned,singlebinaryword.　　LINTAddressofasigned,q

3、uadbinaryword.　　NUMBERAliteralnumericvalue.Notanaddress.Thevaluecanbesigned,orfloatingpoint.　　NUMBERsareusedforanyliteralvalueorfortimer/counteridentifiers(inthiscase,onlyunsignedintegervaluesareallowed).FloatingpointvaluesareonlysuitablewithinIEEEREALtypeoperands

4、.　　Note:whenusedasBCDnumberoperands,thevalueistreatedasahexadecimalvalue(e.g.usingaNUMBERE234EisequivalenttotypingE1234Eastheoperand,sothatthedecimalinterpretationismadeofthevalue).ThevalueofaNUMBERdatatypeisassumedtobedecimal,unlessitisprefixedwith‘#’forahexadeci

5、malvalue.　　REALAddressofadoublewordfloatingpointvalue(IEEEformat-usetheUDINT　　typefortheBCD,FDIVformat).　　LREALAddressofalongwordfloatingpointvalue(IEEEformat-usethe　　ULINTtypefortheBCDformat).　　UDINTAddressofanunsigned,doublebinaryword.　　UDINT_BCDAddressofanunsig

6、ned,doubleBCDword.　　UINTAddressofanunsigned,singlebinaryword.　　UINT_BCDAddressofanunsigned,singleBCDword　　ULINTAddressofanunsigned,quadbinaryword.　　ULINT_BCDAddressofanunsigned,quadBCDword.　　WORDAddressofabitstringof16bits.　　DWORDAddressofabitstringof32bits.　　LWOR

7、DAddressofabitstringof64bits.