KNX - EST5 Database

ETS5 Parameter Dialog

The CoolAutomation device does not provide any additional setup via the ETS5 software beside the Datapoint setup. The final Group Object (GO) is “constructed” based on the following datapoint fields: Indoor CA, Function and Direction. The number of possible GO variations per datapoint is 34.

 

Datapoints N-M

10 datapoints are combined per page.

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Datapoint activation

This parameter activates the KNX interface. The following options are available:

  • Disabled
  • Enabled

Indoor ca (Central Address)

Here, the address of the HVAC device is configured. CA format: L. LINE NUMBER range from 1...8 INDOOR ADDRESS range from 0...999

  • In the above example the CA value for the tested device is L1.102

Function

This parameter defines the function of this datapoint. The following options are available:

  • On/Off
  • Setpoint
  • Room temperature
  • Cool/Heat
  • HVAC Mode. See table for encoding information.
  • HVAC Control Mode Implemented Modes: 0-Auto, 1-Heat, 3-Cool, 9-Fan, 14-Dry
  • Fan speed value. See table for encoding information.
  • Fan speed step The function takes current fan speed and increases it by one step (regardless of the value received from KNX telegram). If current fan speed is the maximum supported by the related Indoor Unit, the lowest possible fan speed will be taken. For example, if Indoor Unit supports Low, Medium, and High fan speeds Fstep changes the fan speed from Low to Medium, from Medium to High or from High to Low. This function only has one direction — from the KNX device to the KNX Module.
  • Fan speed count The function takes all supported fan speeds of the related indoor unit and gives them numbers starting from 1 (one).
  • Fan speed scale % The function translates the fan speed encoding in % into HVAC fan speed modes and vice versa according to the table below.
    Auto Low Medium High Top
    0%   50%   100%
    0% 33% 66%   100%
    0% 25% 50% 75% 100%
  • Error Code. See table for encoding information
  • Error Presence
  • Inhibit
    The function activates or deactivates (according to datapoint value 1 or 0) the inhibit of the indoor unit ON operation. Upon inhibit activation, the current On/Off status of the indoor unit is stored. The indoor unit is turned OFF after an ±8s delay. The indoor unit is forced OFF, until inhibit deactivation. On inhibit deactivation, the indoor unit is turned ON, if the ON status was previously stored, at inhibit activation. This function is designed to work with the window sensor to prevent HVAC operation while the window is open.
  • Filter
  • Louver mode This function and the Louver scale function below may have no effect if the requested louver position is not supported by an indoor unit. Not all indoor units support louver position options listed below or have louver position control at all. Louver control is a capability of the specific indoor unit type. See table for encoding information.
  • Louver Scale - The value ranges from 0...FF hexadecimal
    Auto Vertical 30 45 60 Horizontal
    0x0 0x33 0x66 0x9 0xCC 0xFF
  • Cooling On/Off.
    The value 0x1 turns on Cooling mode. If it gets 0x0, it sets the A/C to Fan Mode at minimal speed
  • Heating On/Off.
    The value 0x1 turns on Heating mode. If it gets 0x0, it sets the A/C to Fan Mode at minimal speed.
  • Fan Auto On/Off.
    The value 0x1 turns on Fan mode with Fan Auto speed. If it gets 0x0, it sets the A/C to Fan Mode at minimal speed.

Direction

The KNX specific communication direction is defined here:

  • In (from bus) Datapoints with this direction support ‘Communicate’ and ‘Write’ configuration flags only.
  • Out (to bus) Datapoints with this direction support ‘Communicate’, ‘Read’ and ‘Transmit’ configuration flags only.

Group objects

All available GOs in datapoint1 are represented on the following table:

Row Function Direction DPT Size
1 On/Off In (from bus) 1.1 Switch 1 bit
2 Out (to bus)
3 Setpoint In (from bus) 9.1 Temperature C 2 bytes
4 Out (to bus)
5 Room temperature In (from bus) 9.1 Temperature C 2 bytes
6 Out (to bus)
7 Cool/Heat In (from bus) 1.100 Heat/cool 1 bit
8 Out (to bus)
9 HVAC Mode In (from bus) HVACOperMode Non-standard DPT 1 byte
10 Out (to bus)
11 HVAC Control Mode In (from bus) 20.105 HVACContrlMode 1 byte
12 Out (to bus)
13 Fan speed value In (from bus) HVACFanMode Non-standard DPT 1 byte
14 Out (to bus)
15 Fan speed step In (from bus) 1.7 Step 1 bit
16 Fan speed count In (from bus) 5.1 Scaling 1 byte
17 Out (to bus)
18 Fan speed scale % In (from bus) 5.1 Scaling 1 byte
19 Out (to bus)
20 Error code Out (to bus) ErrorCode (Non-standard DPT) 2 bytes
21 Error presence Out (to bus) 1.5 Alarm 1 bit
22 Inhibit In (from bus) 1.11 Step 1 bit
23 Filter In (from bus) 1.5 Alarm 1bit
24 Out (to bus)
25 Louver mode In (from bus) HVACLouversPosition (Non-standard DPT) 1 byte
26 Out (to bus)
27 Louver scale In (from bus) 5.1 Scaling 1 byte
28 Out (to bus)
29 Cooling On/Off In (from bus) 1.1 Switch 1 bit
30 Out (to bus)
31 Heating On/Off In (from bus) 1.1 Switch 1 bit
32 Out (to bus)
33 Fan Auto On/Off In (from bus) 1.1 Switch 1 bit
34 Out (to bus)

 

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