Owner's manual

QTechMultiPointControllerforWP2P-QuickStartGuide–v1–August2012  5

www.qtech.co.nz Tel:033663713
TheNumberofRetriessettingspecifiesthenumberoftimesthattheControllerwill
transmitapolltoagivenWP2Pmodulebeforedeterminingthatcommunicationswith
thatmodulehasfailed.Foreachcommunicationsattempt,theControllerwillwaitfor
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–WehaveaMultiPointsystemwiththreeWP2Pmodules.
Thedefaultsettingsare:
PollPeriod:5000ms,RetryTimeout:200ms,NumberofRetries:3.
Every5000ms(5s)thecontrollerwillpolleachoftheWP2Pmodulesinsequence.
TheWP2Pmoduleshavetoprovideareplywithin200msofbeingpolled.Ifareply
fromaspecificWP2Pmoduleisnotreceivedwithin200ms,theControllerwillattempt
another2timeseachseparatedby200ms.IftheWP2Pmoduledoesnotreplythe
ControllerwillmoveontothenextWP2Pmoduleandflashthe“ERR”LEDto
indicatewhichWP2Pmodule.
Theabsoluteminimumpollperiodis2secondsbutwerecommend5secondsto
caterforworstcaseconditions.
Note–Thered“ERR”statusLEDontheControllerwillflashtoindicatea
communicationserror.ThenumberofflashesrepresentswhichWP2Pmodule
the Controller couldn’t communicate with. eg if ERR flashes two times, the
communicationstoWP2Pmodule2hasfailed.
I/OLinkEditor.
The Link Editor is a versatile and powerful way of setting what I/O does what and
whereinthesystem.
SimplyclickineachboxintheI/OgridtodefinethesystemI/Omapping.
Theyellowshadingisprovidedtohelpnavigatebetweenmodulesandhasnoeffect
onfunctionality.
Note–ForeaseofusepleasemaximisethiswindowonyourPC.Thiswill
allow you to view and manage seven WP2P devices on a 1280x1024 screen
withoutscrolling.