Iskra MC350 - Inputs and outputs

SETTINGS
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Measuringcentres–M
C
320,MC330,MC350&MC350H ‐ User’sManual 33
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Days ina week andselected dates forholidaysdefinetimespotsforeach daily group inaperiodfortariff
switching.Datesforholidayshavepriorityoverdaysinaweek.
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Whentherealtimeclockdateisequaltooneofadateofholidays,tariffisswitchedtoholiday,withinaperiod
ofactivedailygroupwithaselectedholiday.
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Ifthereisnodateofholidaysthatisequaltotherealtimeclockdate,alldailygroupswiththeselectedcurrent
dayinaweekareactive.
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Severaldailygroupscanbeactivesimultaneously,whichenablesmorethan4timespotsinoneday(combineof
dayprograms).Ifthetimespotisnotsetforacertainday,tariffT1ischosen.
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Timeofarealtimeclockdefinesanactivetariffregardingcurrentlyactivedayprogram.AselectedtariffT1to
T4ofindividualtimespotisactivefromthetimeofthetimespottothefirstnexttimeoftheremainingtime
spots.
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Theorderoftimespotsisnotimportant,exceptwhentwotimesareequal.Inthatcasethetimewithahigher
successivenumberhaspriority(ifseveraltimespotsareactive,timesofhighertimespotshavehighersuccessive
numbers),whilethetimespotwithalowernumberwillneverbeactive.
Ifcurrenttimeisbeforethefirsttimeofanytimespotofactivespots,thetimespotwiththelasttimeischosen.
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Ifnotimespotofactiveprogramsisvalid,tariffT1ischosen.
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TimeselectedtariffT1toT4orfixedselectedtariff(viacommunication)definesactivityofanenergycounter.
Countermeasuredquantity 
For each of four (4) countersdifferent measured quantity can be selected. User can select from a range of
predefinedoptionsreferringtomeasuredtotalenergyorenergyonsinglephase.Orcanevenselectitsown
optionbyselectingappropriatequantity,quadrant,absoluteorinversefunction.
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Toenergycounteralsopulse/digitalinputcanbeattached.InthiscaseEnergycountercountspulsesfroman
outsidesource(water,gas,energy...meter).
Inputsandoutputs
MC3x0xcanbeequippedwithdifferentI/O.ForitstechnicalspecificationsseechapterTechnicaldataonpage
47.I/OareavailablealsooverProfibuscommunication–fordetailspleaselookintoAppendixC.
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ForI/O1and2followingoptionsareavailable.
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Module1‐Outputs:Therearetwodifferentoutputmodules.
‐ Pulseoutput(solidstate)
‐ Relayoutput(relay)
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Module2‐Inputs:Therearetwodifferentinputmodules.
₋ Digitalinput
₋ Tariffinput
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Tariffanddigitalinputcanbeorderedasadifferenthardwaretypeswithdifferentvoltagelevels.
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AllmoduleshavedoubleinputoroutputandareinMiQensoftwarepresentedastwoseparatemodules.