Campbell Hausfeld SM4M manual Blocksandth

SM4M/SM16M Storage Module Us Guide

4.3 Data FormatsTheDataFormatrequiresper–datapoint,modulescanSpace(binary)twobeorsentbytesstoreencotheorbinarydtheingofataRequirementsbinarythemoduleinPrintableoptithefrmatformatdatashouldeitherASCIIreceived.SinceinbewhichtheformatstoringASCIIusedCampbellbeforeitwhenevis.OsentitisScientificlowthestoreddatathempossible.requresolutondata.ThereFinal.Storage10isnobytespoint
	conversion					ntly		oredinbte-pairs.
	BytesfromtheStorageModuleinputbufferarep
	TheCampbellScientificdataloggrísFinalStorageFormatda								isalwaysgrouped
	inpairs.PrintableASCIImayhaveasinglebyteleftin						inputbufferwhenthe
	PElinedrops.Inthiscasethebytewillbestoredwithrmannullcharacter(ASCII
	Code0)asthesecondbyte.
4.4 Available StorageThehewithinmustenireIfuntilmemoryflasheverybemodublockstheerasdwillmemorywhenmmoryofhaveisbeforememorybeingusedbeenusedchipsblockitwithinentirelyisñthemselvesbeforehpossibleasthisFillersedencase,modulstondfilled.OnwriteStop,64before.Kbyteslimitatisdataothisdivdeduseisi.onatTheofita.ofnoItisintotimemoduleflashconsequenceonly64.memoryKbytespossiblewillstoreblocks,asistothatthedataeraseit
	Howver,	usedasRingMemory,oncethemodulehasfilleditmusterase
	thenxtblockofmemory		itcan	writingaroundtheringí.Erasing
	ablocktak	approximatelyonesecond,andso,ifdataisstillstreamingintothe
	module,theeraseprocessmusttakeplaceëcontinueadvanceofwritingtothatblock.
	Theconsequenceofthisprocessisthatthemodulemust							blocksoftheoldest
	datainadvance.The		initiatetheraseprocess24,000						befre	he
	endofthecurrentblock.Intheworstcasethesizeoftheerased								ctionf
	dulewillbe64Kbytmodulesplus24,000bytes.Table4-1listsffectivecapaciyfor
	theSM4MandSM16Mconfiguredasringmemory.					effectivbytessizeofthe
	memorycanbecalculatedbytakingthestoragemodulesizeminus4bytesper
	block(usedforinternalmarkingpurposes),MINUSthworstThe							caseeraseddata
	size.	Table4-1Ring-MemoryEffectiveMemoryCapacity
	Module	Bytes			Low-ResDataValues
	4M				2052258
	TheSM16Mamuntofstorageavailable41045161668660forfillandstpmemory8343330is89524bytes									44762
	low-resolutiondatavaluesgreaterthantheabove(the				last		eightbytesofmemory
	Thecannotodulebewrittenwillnlyto).storedataupto			endofthel					blockofdata
	ransmittedbforethemodule			full.Thismeanscompletethifdataissentinarge
	blocksandth	modulebecomesfulljuthebeforereceiptoftheendofthelastbock,l

thentheeffectivecapacitywillbecomestheabovefiguresminusalmosttheblocksize.

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