English - Rosemount TankRadar


English - Rosemount TankRadar

Data sheetSeries 600Mounting modules and forming clustersSD 8702-2E01 May 2005 1

Data sheetModule structure:Series 600 Mounting modules and forming clustersPD 600 series DPIs and I/O devicesare made up of two parts – theTerminal Base Module and theElectronics Module.Mounting modules:Forming a cluster:Base modules are clipped directlyonto the DIN rail by holding at aslight angle while the front partis hooked under the front edgeof the rail, then pushed towards ahorizontal position until a retaining“click” is heard. They can be removedby pulling the red spring-loadedslider outwards with a finger or smallscrewdriver, while lifting the moduleaway from the rail.Additional Base Modules are fittedadjacent to one another, ensuringthat the matching retaining hooksare engaged. This ensures that thefour Light-Link communicationwindows in each module arecorrectly aligned.A Cluster of distributedprogrammable and input andoutput devices normally includesat least one device which offersanother P-NET interface in additionElectronic Modules are simplyplugged and clipped into theappropriate Base module, by firstengaging the front (optics) part ofthe electronics into the terminalmodule at a slight angle, and thenpushing towards a horizontalposition until retained by the inbuiltclip. Extraction is achieved bysqueezing in the red retaining clipand reversing the procedure.to Light-Link P-NET, to achievecommunication with the rest ofthe system. One way is to include a“Simple P-NET Interface” module,which provides transparent RS485P-NET communication between therest of the system and individualmodules via Light-Link P-NET. Thisconfiguration is especially suitableif no programmable control is to beincluded within the cluster.2 SD 8702-2E01 May 2005

Data sheetSeries 600 Mounting modules and forming clustersOn the other hand, if programmablecontrol is required, one or more DPImodules will be included, each ofwhich offers a choice of interfacecapable of communicating usingthe P-NET protocol. If this method isused, the DPI will act as a gatewaybetween the global P-NET sectorsand local devices connected toLight-Link P-NET.Light -Link:Light-Link is the means ofcommunication between 600 seriesmodules. The common Tx and Rxoptical paths are automaticallyconnected between terminalmodules during placement, andan optical “spur” connection ismade available to any electronicsmodules that are fitted. In copperwiring terms, using Light-Link isequivalent to daisy-chaining a 3-wireconnection between each module,but without having to perform thetime consuming and bulky physicalconnection. Such an optical mediumobviously provides galvanic isolation,but since light signals are received,amplified and transmitted at eachnode junction (acting as a repeater),a small degree of latency (delay), inthe order of nanoseconds is induced.Therefore, DPIs and Simple P-NETinterface modules should be allgrouped together within the cluster.Having assembled and applied anyuser labelling to the cluster, it is nowready to have external connectionsapplied. Input and outputterminations have been designed toensure that no additional junctionsor marshalling connections arenecessary. In other words, there isa single terminal available for eachwire (refer to terminal labelling), andthere is no need to common up anysignals.SD 8702-2E01 May 2005 3

Data sheetSeries 600 Mounting modules and forming clustersLinking block ofclusters:As far as applying power toeach module in the clusteris concerned, this is simplyachieved by fitting (pushingin) the appropriate length ofsupplied double-sided PowerRail, into the aligned rear slotsalong the length of the cluster.Connection to the actual powersource (which might also befitted to the DIN rail), is madeusing any two of the spadeterminals available along theIt may be more convenient toform a local cluster into two ormore blocks, perhaps in orderto match with dimensions of ahousing or signal entry points.In this case, it is necessaryto ensure that the Light-Linkcommunication path betweenmodules is continuous. Toachieve this, two (or more) subclustersare linked together withtwo short pieces of polymeroptical fibre (POF). First, thelength of the cluster.Under normal operationalconditions, the cluster powerrail will be retained quitesatisfactorily. However, underhigh vibration and/or mobileconditions, retention canbe guaranteed by passing a2.5mm cable tie through thehole formed between the railand the electronics module andclip around the engaged intermoduleretaining spigots.plastic light guide assemblyin each of the linked terminalmodules has to be removed.This can be achieved by firstremoving any electronic module,and then using an ordinary paperclip to push the guide out.Note:The POF cable type can be, forexample, Agilent Technologiestype HFBR-RUS.4 SD 8702-2E01 May 2005

Data sheetSeries 600 Mounting modules and forming clustersTo ensure a clean interface, cutthe Polymer Optical Fibre (POF) tothe length required, using the toolillustrated below.In joining clusters together, thespecifications provided below shouldnot be exceeded.SD 8702-2E01 May 2005 5

Data sheetSeries 600 Mounting modules and forming clustersNext, the optical fibre is pushed intothe hole until it is in line with the edgeof the hole inside the base module.Now the electronics module is refitted.6 SD 8702-2E01 May 2005

Data sheetSeries 600 Mounting modules and forming clustersTo ensure that the Optical Fibreis retained under all operationalconditions, a holding wedge can befitted.Note: The holding wedges aredelivered in kits with short versionwedges for left side mounting andlong version wedges for right sidemounting. Always use the properversion, depending on left or rightside mounting.Power is linked between the subclustersusing the most convenientspade connections.SD 8702-2E01 May 2005 7

Data sheetGeneralspecifications:Series 600 Mounting modules and forming clustersDimensions (in mm):Weight:Power supply:Operation Temperature:Storage temperature:140 grams approx.18 to 32 VDC–25 °C to + 70 °C–40 °C to + 85 °CMaritimeapprovals:Det Norske VeritasLloyd’s Register of ShippingBureau VeritasGermanischer LloydAmerican Bureau of ShippingDamcos can accept no responsibility for possible errors in catalogues, brochures and other printed material. Damcos reserves the right to alter its products without notice. This also applies to productsalready on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.All trademarks in this material are property of the respective companies. Damcos and the Damcos logotype are trademarks of Damcos A/S. All rights reserved.8 SD 8702-2E01 May 2005© Damcos A/S - CCH 2-2005

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