Danfoss ECL Comfort A315 User Manual

7.3Severalcontrollersinthesamesystem
WhenECLComfortcontrollersareinterconnectedbymeansof
theECL485communicationbus(cabletype:2xtwistedpair),the
mastercontrollerwillbroadcastthefollowingsignalstotheslave
controllers:
•Outdoortemperature(measuredbyS1)
•Timeanddate
•DHWtankheating/chargingactivity
Furthermore,themastercontrollercanreceiveinformationabout:
•thedesiredflowtemperature(demand)fromslavecontrollers
•and(asfromECLcontrollerversion1.48)DHWtankheating/
chargingactivityinslavecontrollers
Situation1:
SLAVEcontrollers:Howtomakeuseoftheoutdoor
temperaturesignalsentfromtheMASTERcontroller
Theslavecontrollersonlyreceiveinformationaboutoutdoor
temperatureanddate/time.
SLAVEcontrollers:
Changethefactorysetaddressfrom15toaddress0.
•In,gotoSystem>Communication>ECL485addr.
ECL485addr.(master/slaveaddress)
2048
CircuitSettingrange
Choose
0...150
ECL485buscable
MaximumrecommendedlengthoftheECL485busiscalculatedlike
this:
Subtract"TotallengthofallinputcablesofallECLcontrollersinthe
master-slavesystem"from200m.
Simpleexamplefortotallengthofallinputcables,3xECL:
1xECL
Outdoortemp.sensor:
15m
3xECL
Flowtemp.sensor:
18m
3xECL
Returntemp.sensor:
18m
3xECL
Roomtemp.sensor:
30m
Total:
81m
MaximumrecommendedlengthoftheECL485bus:
200-81m=119m
InasystemwithMASTER/SLAVEcontrollers,onlyoneMASTER
controllerwithaddress15isallowed.
IfbymistakemoreMASTERcontrollersarepresentinanECL485
communicationbussystem,decidewhichcontrolleristobeMASTER.
Changetheaddressintheremainingcontrollers.However,thesystem
willoperatebutnotbestablewithmorethanoneMASTERcontroller.
IntheMASTERcontroller,theaddressin‘ECL485addr.(master/slave
address)’ ,IDno.2048,mustalwaysbe15.
Navigation:
•In
,gotoSystem>Communication>ECL485addr.
SLAVEcontrollersmustbesettoanotheraddressthan15:
Navigation:
•In
,gotoSystem>Communication>ECL485addr.
'Demandoffset'withavalueistobeusedintheMastercontrolleronly.
VI.GU.L2.02
©Danfoss|2017.09|183
OperatingGuideECLComfort210/296/310,applicationA275/A375

Danfoss ECL Comfort A315 Specifications

General

Brand	Danfoss
Model	ECL Comfort A315
Category	Controller
Language	English