Danfoss ECL Comfort 210 Instructions Manual

Also see for ECL Comfort 210: Installation guide User guide Installation guide Installation guide Operating guide

Danfoss ECL Comfort 210 Instructions Manual Manual pdf 28 page image

Instructions ECL Comfort 210 / 310, communication descriptionDanfoss District Energy VI.LG.V3.02 DEN-SMT/DK 288. ECL 485 bus descriptionThe ECL 485 bus is used to connect ECL 210, ECL 310 and ECA30/31 with each other in a master/slave system.The master/slave communication exchanges informationbetween the devices, e.g. time and date, outdoortemperature, refill request2 etc.The ECL 485 bus wiring must be done similar to a Modbus RS-485 network, i.e. devices must be connected in a daisy chainnetwork (polarization is done by the ECL master, address 15).The recommended network installation procedure is as insection 8.1.2.The total cable length of maximum 200 meters (all devicesincl. the internal ECL 485 communication bus) should not beexceeded. Cable lengths of more than 200 meters mayincrease noise sensitivity (EMC).Only Danfoss District Energy products developed for the ECL 485bus can be used.No third party products can be used!2 Refill is a functionality for the A231, A331, A361 and A368 applications8.1 Installation of the ECL 485 networkThe ECL 485 bus is similar to Modbus concerning that anaddress is to be used only once in the network. Using thesame address multiple times will cause malfunction. It isrecommended that all of the devices are installed sequentiallyto ensure that they will not conflict with each other.Address 15 is reserved for the master controller.Addresses 1-9 are reserved for slave controllers.Address 0 is reserved for listening slaves. Listening slaves canonly listen for master broadcasts and cannot broadcastanything to the master. Blind controllers cannot be used aslistening slaves.8.1.1 ECL 210B and ECL 310B application installationThe ECA 30/31 can be used for installation of an application inan ECL controller without display and dial (also calledblind/B/type B/HMI less).Installation of the application must be done in a point-to-point connection between the ECL and ECA 30/31.If necessary, disconnect other ECL or ECA products from theECL 485 busConnect the ECL 210B / ECL 310B directly to the ECA 30/31If necessary set the ECA 30/31 slave address to ‘A’ and theconnection address to 15The ECA 30/31 will now act as an ECL with display and dial.Select the application normallyWhen the application is installed the ECL will be set to ECL485 master (address 15)If necessary, adjust the ECL 210B / ECL 310B’s ECL 485 addressand connect it to the ECL 485 network again.2 Refill is a functionality for the A231, A331, A361 and A368 applications