b'first CD model-predictive control intemperature increase to allow up to awith critical operating challenges in an In most2003. Since then, Honeywells cross- 5% speed increase of the TM, whileera of global pandemics, and address cases, up todirection multivariable (CDMV) controlmaintaining the same reel moisture. the many types of dangers associated ten times thehas evolved to a much higher level ofwith papermaking and converting subscriptionsophistication, so that, for example,Honeywells QCS 4.0 cloud-basedfacilities, Honeywell has enhanced its cost hasone CD actuator can be used to controlsolution continuously monitors QCSoverall solution with a host of plant & been realizedtwo variables, or two actuators canand paper machine performance andpersonnel safety solutions. For example, from onebe coupled to optimize one variable,tracking against user-defined targets andreal-time location tracking helps mill expert-guidedand quality variables can be prioritizedkey performance indicators (KPIs). QCSoperators improve safety, security and optimizationaccording to importance to meeting4.0 data for a monitored process areproductivity. This solution encompasses cycle. quality requirements. presented on a QCS dashboard, hostedapplications ranging from automatic in the Honeywell Cloud, and mademustering, fatigue monitoring and Despite the sophistication of Honeywellsavailable on any device. worker location tracking, to automatic CDMV control, CD control tuning issign-in/sign-out, restricted area easily achieved using HoneywellsUnlike approaches where manualmovements, time & attendance, and IntelliMap tuning utility. After capturingdata collection and analysis steps arekey asset inventory & location tracking.data from a few process bumps torequired before tuning can begin, QCS create a process model in IntelliMap,4.0 provides immediate access to theEXAMPLES OF PERFORMANCEthe user can easily assign the relativehealth and performance of scanners,For decades, measuring basis weight importance of a particular quality in thesensors, actuators and control softwareor grammage in the tissue industry control strategy, and also adjust theassets in the paper production process.involved using nuclear sensors, which aggressiveness of the controller andIt provides the automated infrastructurecould be influenced significantly by observe the modelled results. Whenthat continuously collects and analyzeschanges in air temperature in the sheet the desired outcome is obtained in thehundreds of machine measurement,gap between the upper and lower IntelliMap model, the tuning constantscontrol, process, and system healthsensor heads. Fortunately, because are uploaded to the CD control in thevalues, in the cloud. As issues aretissue is composed primarily of fiber Experion MX server, to enable controlidentified, a corresponding call-to-actionand water, it is possible to measure on the process with minimum processis generated, focusing appropriatebasis weight and moisture accurately disturbance or production loss. operational or maintenance attention atby determining the sheets absorptionthe problem component, and remoteof infrared energy at the signature For tissue CD weight controlexpert engagement when appropriate. absorption wavelengths of cellulose and applications, Honeywell control offersThe QCS 4.0 solution has been shownwater. From these two measurements, the ProFlow consistency profilingto eliminate most of the effort to achievebasis weight and percentage moisture actuators, available for both rotary andexpert machine evaluation and providescan be accurately determined. Infrared linear valves, as well as AutoSlice slicenear-real-time performance insight.sensors are not influenced by changes lip actuators.For CD moisture control,Issue detection-cycle time (and ongoingin the temperature of air in the sheet although Devronizer was the industrysproduction loss) is reduced dramatically.gap between the sensor heads.first commercially available steam box,As a result, tissue manufacturers continuous investment in this productcan realize a strong return onSince fiber contains materials other has ensured that it is still the mostinvestment (ROI) from their technologythan cellulose, and there may be other effective and widely deployed solutioninvestmentin most cases, up to tenmaterials in the sheet besides fiber available for both moisture profiling andtimes the subscription cost in annualizedand water, Honeywell factory-calibrates full sheet-width dewatering, to improveresults has been realized from oneits MXIR infrared sensor cellulose tissue quality and tissue machineexpert-guided optimization cycle. signal to read the sheets dry weight, productivity. A typical Devronizerrather than cellulose weight. It is also installation can achieve sufficient sheetFinally, to help manufacturers dealpossible to perform this calibration TISSUE TECHNOLOGY INTERNATIONAL69'