Erhardt+Leimer OL 80 - Page 24

BPage24 BEA--220265-EN-04
CCDarraycameraOptoLineOL80..
➜Entervalue1inparameter41(sendmountposition).
1=sendmountposition
0=donosendmountposition
➜Checkthe"sendmountposition"parametersofinterfaceDI..and
moduleDM..ifnecessaryentervalue0(donotsendmountingpo-
sition).OnlyonedeviceintheCANnetworkmaysendthemount-
ingposition.
7.10.2 Set the type of exposure control
Withsomeapplicationsitmaybebenecialiftheexposurecontrolis
switchedofffromtimetotimeoralltogether.Thesettingshouldthen
onlybechangedifsatisfactoryresultscannotbeobtainedwiththe
standardsetting.
Theexposurecontroloperatingmodeissetinparameter28.
0=exposurecontrolactive(standard)
1=exposurecontrolisonlyactiveifnowebisinthecamerameasur-
ingrange.Assoonasthewebislocatedinthecamerameasur-
ingrange,operationiswiththemostrecentlyestablishedexpo-
surevalue.Thissettingshouldbeselectedifthelightconditions
onthemovingwebchangesomuchthattheexposurecontrol
mustbecontinuallyreadjusted.
2=exposurecontroloff.Theexposureisxedatavaluesetinpa-
rameter29.Thissettingmaybeadvantageouswhenscanning
edgeswithapoorcontrast.
7.10.3 Setting the type of contrasting edge evaluation
Onsomeapplications,itmaybebenecialtochangetheevaluation
ofthecontrastingedges.Thischangeshouldonlybemadewhenno
satisfactoryresultscouldbeachievedwiththestandardsetting.The
evaluationofthecontrastingedgesissetinparameter32,thelimit
valuesinparameters33and34.
Evaluationissetasstandardaccordingtotheankheight.Inthis
formofevaluation,achangeincontrastmustcorrespondtoaspe-
cicheightinordertobedetectedasameasuredvalue.Seeillustra-
tiononpage25,topleft.
Whenevaluatingwithagrey-scalethreshold,asetxedlimitvalue
mustbeexceededgivenacontrastchangetoallowthelattertobe
detectedasameasuredvalue.Seeexampleonpage25,topright.
Parameter32,typeofedgeevaluation:
0=edgeevaluationaccordingtoankheight
1=edgeevaluationwithgreyscalethreshold
Parameter33,upperlimitvalue:
Parameter32=0:minimumheightofavalidpositiveank
Parameter32=1:greyscalethresholdthatmustbeexceededbya
validpositiveank