Owner's manual

QTechMultiPointControllerforWP2P-QuickStartGuide–v1–August2012 5
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TheNumberofRetriessettingspecifiesthenumberoftimesthattheControllerwill
transmitapolltoagivenWP2Pmodulebeforedeterminingthatcommunicationswith
thatmodulehasfailed.Foreachcommunicationsattempt,theControllerwillwaitfor
the Retry Timeout before re-attempting. Once the specified number of retries has
been reached the Controller will determine that it cannot communicate with that
particular WP2P module, and will move on to the next WP2P module in the
sequence.
Example–WehaveaMultiPointsystemwiththreeWP2Pmodules.
Thedefaultsettingsare:
PollPeriod:5000ms,RetryTimeout:200ms,NumberofRetries:3.
Every5000ms(5s)thecontrollerwillpolleachoftheWP2Pmodulesinsequence.
TheWP2Pmoduleshavetoprovideareplywithin200msofbeingpolled.Ifareply
fromaspecificWP2Pmoduleisnotreceivedwithin200ms,theControllerwillattempt
another2timeseachseparatedby200ms.IftheWP2Pmoduledoesnotreplythe
ControllerwillmoveontothenextWP2Pmoduleandflashthe“ERR”LEDto
indicatewhichWP2Pmodule.
Theabsoluteminimumpollperiodis2secondsbutwerecommend5secondsto
caterforworstcaseconditions.
Note–Thered“ERR”statusLEDontheControllerwillflashtoindicatea
communicationserror.ThenumberofflashesrepresentswhichWP2Pmodule
the Controller couldn’t communicate with. eg if ERR flashes two times, the
communicationstoWP2Pmodule2hasfailed.
I/OLinkEditor.
The Link Editor is a versatile and powerful way of setting what I/O does what and
whereinthesystem.
SimplyclickineachboxintheI/OgridtodefinethesystemI/Omapping.
Theyellowshadingisprovidedtohelpnavigatebetweenmodulesandhasnoeffect
onfunctionality.
Note–ForeaseofusepleasemaximisethiswindowonyourPC.Thiswill
allow you to view and manage seven WP2P devices on a 1280x1024 screen
withoutscrolling.