KNX interface for controlled domestic ventilation units, series WS / WR

Transcription

1 KNX interface for controlled domestic units, series WS / WR

2 Importing ETS project The KNX network is normally configured by a system integrator, who also has the necessary commissioning software (ETS). An ETS project (application file WS) forms the basis for integrating the KNX module into the ETS software. This project can be imported using the import function in the ETS software. Once the process is complete, the imported project can be used as the basis project. Alternatively, the KNX module can be copied into an existing project. Configuring the transmission intervals The transmission intervals of the individual communication objects can be defined in the ETS software. The setting range for the transmission intervals is between 1 and 30 minutes. For example, if a value of 5 is set for the communication object operating mode, the communication object transmits the current object value to the KNX bus every 5 minutes regardless of whether the value has changed or not. A value of 0 deactivates the communication object's interval-controlled transmission function. At the same time, a transmission function is activated should the status of the object value change. The object value is thereby only written to the KNX bus if it changes. Figure 1 shows the window for configuring the transmission intervals of communication objects in the ETS software.

3 Figure 1: Configuring the transmission intervals Installing KNX module The KNX module may only be installed if the unit is de-energised. The unit must be disconnected from the mains before the installation. Figure 2 shows the KNX module.

4 Figure 2: KNX module Step 1 Remove unit cover. Step 2 Pull out control console with control in order to access the slot for the options modules. Step 3 Fit KNX module in slot for communications modules. Step 4 Connect KNX plug with KNX bus. Step 5 Activate KNX bus power supply. The KNX module is now powered by the KNX bus and can be configured and parameterised using the ETS software. Step 6 To issue a module address, the module's programming mode first has to be activated. This is done by pressing the programming button on the KNX module. When the KNX module is in programming mode, its red LED lights up and a module address can be issued via the ETS software. Once the module address has been successfully programmed, the LED goes out automatically. Programming mode can also be deactivated manually by pressing the button again. Step 7 Once the module address has been successfully programmed, the unit can be closed again. This involves refitting the control console with control in the control box and closing the unit cover. The power supply to the WS/WR unit can then be reactivated.

5 Application program and group addresses If group addresses have been assigned to all the necessary communication objects, the programming of the KNX module can be started. Firstly the ETS software is used to transfer the application program to the KNX module. The application program contains the basic function of the KNX module. The group addresses and parameters are then transferred. Activating the KNX module Once programming is complete, the module can be activated. The settings menu at installer level in the touch operating unit is called up for this purpose. The KNX module is activated in the KNX sub-menu. KNX objects for controlled domestic control 2015 What Objects Type Flags min max Step width Unit K L S Ü A Operating mode Object 0 operating mode DPT Operating mode Object 1 Write operating mode DPT Summer / winter Object 2 season DPT Summer / winter Object 3 Write season DPT Ventilation level Ventilation level Intermittent Intermittent Duration of intermittent Duration of intermittent Room (actual) Room (setpoint) Object 4 Object 5 Object 6 Object 7 Object 8 Object 9 Object 10 Object 11 Object 12 level Write level intermittent Write intermittent time remaining for intermittent duration of intermittent Write duration of intermittent room room DPT DPT DPT DPT DPT min. DPT min. DPT min. DPT C DPT C

6 Room (setpoint) Object 13 Write room DPT C Room sensor temp. KNX Object 14 Write room via KNX DPT C T-room max. Object 15 T-room max. T-room max. Object 16 Write T-room max. T-supply air Object 17 T-supply min. cooling air min. cooling T-supply air Object 18 Write T-supply min. cooling air min. cooling Volumetric Object 19 current flow of supply volumetric flow air of supply air Volumetric flow of exhaust air Object 20 current volumetric flow of exhaust air DPT C DPT C DPT C DPT C DPT m³/h DPT m³/h Temperature supply air Temperature outgoing air Temperature outside air Temperature exhaust air Humidity value exhaust air Room sensor AQ external 1 Object 21 Object 22 Object 23 Object 24 Object 25 Object 26 Object 27 Object 28 current speed of supply air current speed of exhaust air measurement of supply air temp. measurement of outgoing air temp. measurement of outside air temp. measurement of exhaust air temp. humidity value of exhaust air Write air quality value via KNX DPT rpm DPT rpm DPT C DPT C DPT C DPT C DPT %r.h. DPT ppm Room sensor Object 29 Write air DPT ppm

7 AQ external 2 quality value via KNX Room sensor Object 30 Write air DPT ppm AQ external 3 quality value via KNX Room sensor Object 31 Write humidity DPT %r.h. r.h. external value via KNX Room sensor r.h. external Object 32 Write humidity value via KNX DPT %r.h. Time Object 33 time DPT day remaining, unit filter remaining for unit filter Time Object 34 time DPT day remaining, external filter remaining for external filter Time Object 35 time DPT day remaining, room filter remaining for room filter Fault code Object 36 fault code DPT Acknowledge fault Object 37 Acknowledge fault DPT Information code 1 Object 38 information code (note 1) DPT Information code 2 Information code 3 Status of switching contact Status of PTC heating register Status of bypass Status of brine EHE (ZP1) Position of zone shutter (ZP1) Status of 3-way air shutter (ZP1) Status of supplementary heating (ZP1) Total operating time (days) Object 39 Object 40 Object 41 Object 42 Object 43 Object 44 Object 45 Object 46 Object 47 Object 48 information code (note 2) information code (note 3) status of switching contact status of PTC heating register status of bypass status of brine EHE position of zone shutter status of 3-way air shutter status of supplementary heating operating time of controlled domestic DPT DPT DPT DPT DPT DPT DPT DPT DPT DPT day

8 Total operating time (hours) Temp. outside air before EHE Object 49 Object 50 (days) operating time of controlled domestic (hours) outside air temp.before EHE DPT hour DPT C Communication flags Flag Name Meaning K Communication Object is capable of communication L Object can be read S Write Object can receive data Ü Transmit Object can transmit A Update Object can transmit read requests Data types Data type Range of values Description DPT bit PT byte without prefix DPT bytes without prefix DPT bytes without prefix DPT bytes without prefix DPT bytes floating point DPT bytes floating point DPT bytes floating point DPT bytes floating point Assignment tables for KNX objects Object 0 / operating Object 1 / Write operating mode mode 0 Off 0 Off 1 Manual 1 Manual 2 Auto time 2 Auto time 3 Auto sensor 3 Auto sensor 4 Eco supply air 4 Eco supply air 5 Eco exhaust air 5 Eco exhaust air Object 2 / season Object 3 / Write season

9 0 Winter 0 Winter 1 Summer 1 Summer Object 4 / level Object 5 / Write level 0 Off 0 Off 1 Humidity protection 1 Humidity protection 2 Reduced 2 Reduced 3 Nominal 3 Nominal 4 Intensive 4 Intensive Object 6 / intermittent Object 7 / Write intermittent 0 Intermittent inactive 0 Intermittent deactivated 1 Intermittent active 1 Activate intermittent Object 33 / fault code Value Meaning Acknowledg ement possible 0 No error Object 35, 36, 37 / information code Value Meaning Brine earth heat exchanger, low cooling capacity 1 1 Supply air fan Yes 2 Communication EnOcean 2 Exhaust air fan Yes 3-3 Sensor T-air inlet, unit No 4 Communication internet 4 Sensor T-supply air No 5 Bypass active 5 Sensor T-outgoing air No 6 Zone active 6 Sensor T-room control unit No 7 Frost protection active 7 Sensor T-room external No 8 Frost protection, volumetric flow regulation 8 Sensor T-outside air upstream of EHE No 9 Key lock active 9 Bypass No 10 Filter message, unit filter 10 Zone shutter No 11 Filter message, external filter 11 Combination sensor, exhaust air No 12 Filter message, room filter 12 Frost protection No 13 Volumetric flow measurement active 13 External pre-heating Yes 14 Max. humidity value limit exceeded 14 Supply air too cold No 15 Reheating active 15 Exhaust air too cold No 16 Furnace pressure monitor triggered 16 Sensor T-room bus No 17 External safety shutdown

10 17 Additional circuit board 1 No 18 Forced operation active 18 Additional circuit board 2 No 19 Communication ModBus 19 Pressure consistency setpoint not reached Yes 20 Switching test active 20 Communication, comfort control unit No 21 System memory Yes 22 System bus No 23 Unknown error Yes Object 34 / Acknowledge fault Object 38 / Status of switching contact 0 Acknowledgement 0 Contact open inactive 1 Acknowledge fault 1 Contact closed Object 39 / Status of PTC heat Object 40 / Status of bypass register 0 PTC heat register 0 Bypass closed inactive 1 PTC heat register active 1 Bypass open Object 41 / Status of brine EHE Object 42 / Status of zone shutter (ZP1) (ZP1) 0 Brine EHE inactive 0 Status inactive 1 Heat brine EHE 1 Status of zone 1 2 Cool brine EHE 2 Status of zone 2 3 Status of zone sensor Object 43 / Status of 3-way air shutter (ZP1) Object 44 / Status of supplementary heating (ZP1) 0 Air shutter inactive 0 Supplementary heating inactive 1 Air shutter heating 1 Supplementary heating active 2 Air shutter cooling