plc外文翻译3Word下载.docx
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plc外文翻译3Word下载.docx
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◆SRSet-ResetFlipFlop
◆RSReset-SetFlipFlop
Otherinstructionsreacttoapositiveornegativeedgetransitiontoperformthefollowingfunctions:
◆---(N)---NegativeRLOEdgeDetection
◆---(P)---PositiveRLOEdgeDetection
◆NEGAddressNegativeEdgeDetection
◆POSAddressPositiveEdgeDetection
◆ImmediateRead
◆ImmediateWrite
1.2---||---NormallyOpenContact(Address)
1.2.1Symbol
<
address>
---||---
Parameter
DataType
MemoryArea
Description
BOOL
I,Q,M,L,D,T,C
Checkedbit
1.2.2Description
---||---(NormallyOpenContact)isclosedwhenthebitvaluestoredatthespecified<
isequalto"
1"
.Whenthecontactisclosed,ladderrailpowerflowsacrossthecontactandtheresultoflogicoperation(RLO)="
.
Otherwise,ifthesignalstateatthespecified<
is"
0"
thecontactisopen.Whenthecontactisopen,powerdoesnotflowacrossthecontactandtheresultoflogicoperation(RLO)="
Whenusedinseries,---||---islinkedtotheRLObitbyANDlogic.Whenusedinparallel,itislinkedtotheRLObyORlogic.
1.2.3Statusword
BR
CC1
CC0
OV
OS
OR
STA
RLO
/FC
writes:
-
x
1
1.2.4Example
Powerflowsifoneofthefollowingconditionsexists:
Thesignalstateis"
atinputsI0.0andI0.1Orthesignalstateis"
atinputI0.2.
1.3---|/|---NormallyClosedContact(Address)
1.3.1Symbol
---|/|---
1.3.2Description
---|/|---(NormallyClosedContact)isclosedwhenthebitvaluestoredatthespecified<
thecontactisopened.Whenthecontactisopened,powerdoesnotflowacrossthecontactandtheresultoflogicoperation(RLO)="
Whenusedinseries,---|/|---islinkedtotheRLObitbyANDlogic.Whenusedinparallel,itislinkedtotheRLObyORlogic.
1.3.3Statusword
1.3.4Example
atinputI0.2
1.4XORBitExclusiveOR
FortheXORfunction,anetworkofnormallyopenandnormallyclosedcontactsmustbecreatedasshownbelow.
1.4.1Symbols
address1>
Scannedbit
address2>
1.4.2Description
XOR(BitExclusiveOR)createsanRLOof"
ifthesignalstateofthetwospecifiedbitsisdifferent.
1.4.3Example
TheoutputQ4.0is"
if(I0.0="
ANDI0.1="
)OR(I0.0="
).
1.5--|NOT|--InvertPowerFlow
1.5.1Symbol
---|NOT|---
1.5.2Description
---|NOT|---(InvertPowerFlow)negatestheRLObit.
1.5.3Statusword
1.5.4Example
ThesignalstateofoutputQ4.0is"
ifoneofthefollowingconditionsexists:
atinputI0.0Orthesignalstateis"
atinputsI0.1andI0.2.
1.6---()OutputCoil
1.6.1Symbol
---()
I,Q,M,L,D
Assignedbit
1.6.2Description
---()(OutputCoil)workslikeacoilinarelaylogicdiagram.Ifthereispowerflowtothecoil(RLO=1),thebitatlocation<
issetto"
.Ifthereisnopowerflowtothecoil(RLO=0),thebitatlocation<
.Anoutputcoilcanonlybeplacedattherightendofaladderrung.Multipleoutputelements(max.16)arepossible(seeexample).Anegatedoutputcanbecreatedbyusingthe---|NOT|---(invertpowerflow)element.
1.6.3MCR(MasterControlRelay)dependency
MCRdependencyisactivatedonlyifanoutputcoilisplacedinsideanactiveMCRzone.WithinanactivatedMCRzone,iftheMCRisonandthereispowerflowtoanoutputcoil,theaddressedbitissettothecurrentstatusofpowerflow.IftheMCRisoff,alogic"
iswrittentothespecifiedaddressregardlessofpowerflowstatus.
1.6.4Statusword
1.6.5Example
atinputsI0.0ANDI0.1ORthesignalstateis"
ThesignalstateofoutputQ4.1is"
atinputI0.2AND"
atinputI0.3
IftheexamplerungsarewithinanactivatedMCRzone:
WhenMCRison,Q4.0andQ4.1aresetaccordingtopowerflowstatusasdescribedabove.
WhenMCRisoff(=0),Q4.0andQ4.1areresetto0regardlessofpowerflow.
1.7---(#)---MidlineOutput
1.7.1Symbol
--(#)---
I,Q,M,*L,D
*AnLareaaddresscanonlybeusedifitisdeclaredTEMPinthevariabledeclarationtableofalogicblock(FC,FB,OB).
1.7.2Description
---(#)---(MidlineOutput)isanintermediateassigningelementwhichsavestheRLObit(powerflowstatus)toaspecified<
.Themidlineoutputelementsavesthelogicalresultoftheprecedingbranchelements.Inserieswithothercontacts,---(#)---isinsertedlikeacontact.A---(#)---elementmayneverbeconnectedtothepowerrailordirectlyafterabranchconnectionorattheendofabranch.Anegated---(#)---canbecreatedbyusingthe---|NOT|---(invertpowerflow)element.
1.7.3MCR(MasterControlRelay)dependency
MCRdependencyisactivatedonlyifamidlineoutputcoilisplacedinsideanactiveMCRzone.WithinanactivatedMCRzone,iftheMCRisonandthereispowerflowtoamidlineoutputcoil;
theaddressedbitissettothecurrentstatusofpowerflow.IftheMCRisoff,alogic"
1.7.4Statusword
1.7.5Example
M0.0hastheRLO:
M1.1hastheRLO:
M2.2hastheRLOoftheentirebitlogiccombination.
1.8---(R)ResetCoil
1.8.1Symbol
---(R)
Resetbit
1.8.2Description
---(R)(ResetCoil)isexecutedonlyiftheRLOoftheprecedinginstructionsis"
(powerflowstothecoil).Ifpowerflowstothecoil(RLOis"
),thespecified<
oftheelementisresetto"
.ARLOof"
(nopowerflowtothecoil)hasnoeffectandthestateoftheelement'
sspecifiedaddressremainsunchanged.The<
mayalsobeatimer(Tno.)whosetimervalueisresetto"
oracounter(Cno.)whosecountervalueisresetto"
1.8.3MCR(MasterControlRelay)dependency
MCRdependencyisactivatedonlyifaresetcoilisplacedinsideanactiveMCRzone.WithinanactivatedMCRzone,iftheMCRisonandthereispowerflowtoaresetcoil;
theaddressedbitisresettothe"
state.IftheMCRisoff,thecurrentstateoftheelement'
sspecifiedaddressremainsunchangedregardlessofpowerflowstatus.
1.8.4Statusword
1.8.5Example
Network1
Network2
Network3
ThesignalstateofoutputQ4.0isresetto"
IftheRLOis"
thesignalstateofoutputQ4.0remainsunchanged.
ThesignalstateoftimerT1isonlyresetif:
thesignalstateis"
atinputI0.3.
ThesignalstateofcounterC1isonlyresetif:
atinputI0.4.
WhenMCRison,Q4.0,T1,andC1areresetasdescribedabove.
WhenMCRisoff,Q4.0,T1,andC1areleftunchangedregardlessofRLOstate(powerflowstatus).
1位逻辑指令
1.1位逻辑指令概述
1.1.1描述
位逻辑指令使用两个数字,1和0。
这两个数字,形成一个数字系统的基础,被称为二进制系统。
1和0两个数字被称为二进制数字或位。
在触点和线圈的世界,1表示激活或通电,0表示没有激活或不通电。
解释1和0位逻辑指令信号状态,并结合他们根据布尔逻辑。
这些组合会产生一个0或1的结果,被称为“逻辑运算的结果”(RLO)。
位逻辑指令触发的逻辑操作可执行多种功能。
有位逻辑指令,履行下列职能:
◆---||---常开触点(地址)
◆---|/|---常闭触点(地址)
◆---(SAVE)将RLO保存到BR存储器
◆XOR异或
◆---()输出线圈
◆
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