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gamma/ L and Sigma with PROFIBUS - ProMinent

gamma/ L and Sigma with PROFIBUS - ProMinent

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Function blocks for <strong>gamma</strong>/L <strong>and</strong> <strong>Sigma</strong>sInterfaces Type DescriptionirSetpoint_0_100 Real Entry of the setpoint of the metering pump in %.The formula of the calculation is:Set frequency = MaxFrequency * irSetpoint / 100Through the real number the speed on the stroke can beprecisely selected, because the entry of 49.99%, forexample, is possible.Likewise a direct connection of the integrated S7 controlleris possible. For this the output parameter LMNmust be connected on this input.idStrokesInBatch DInt 0-99999 can be set for batch mode. At a positive flank onthe input ixStartBatch_Or_Contact, this number of strokeswill be executed.iiCycle_Error Int Specification of the cycles as delay of the warning <strong>and</strong>fault oxWarning, oxError <strong>and</strong> oxErrorProfibus.Through the delay short drop-outs in the <strong>PROFIBUS</strong> ®system can be bridged.The delay time is calculated as follows:When using the function block in OB1:Delay = measured cycle time * iiCycle_ErrorWhen using the function block in OB35:Delay = time wake alarm * iiCycle_ErrrorThis value uses the workaround Profibusbug.If the pump is not at a st<strong>and</strong>still, or if it does not start upon its own after a Profibus fault, adjust the value so that avalue of approx. 1s is achieved.Example:oxRunning Bool 0 = pump is at st<strong>and</strong>stillCall block of pump P1 every 50 ms, then the value 20should be set.1 = pump is runningoxWarning Bool 0 = No warning1 = Warning activeoxError Bool 0 = no fault1 = fault activeoxErrorProfibus Bool 0 = Profibus OK1 = Profibus faultyoyMode Byte 00 = Manual01 = Batch02 = Contact03 = AnalogueorActualFrequency Real Actual stroke frequency in strokes/minoiStrokeLength Int 0 – 100 = 0-100% set stroke length on the metering pumpodStrokeNumber DInt Current number in the stroke counter in the meteringpumporQuantity Real Current quantity in the quantity counter of the meteringpumporVolumePerStroke Real Output volume per metering stroke (only for calibratedmetering pump)41

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