KNX connection (EN)

Extension for a KNX connection

The heat pump manager can be used as an accessory KNX extension can be integrated into a KNX bus system.

1 Table of contents

New!
The documentation "Room temperature control Smart-RTC +" is now available for describing the room temperature, room humidity and target room temperature via the KNX extension. "

KNX-WPM extension

Order reference

KNX WPM

item number

376350

Operating conditions

-20 to 60 ° C
<85% RH

Cable sizing

0.2 to a maximum of 1.5 mm²; YCYM 1x2x0.8 mm²

Can be used with

WPM 2006 / R
WPM 2007 / R
WPM EconPlus / R
WPM Econ5
WPM Touch

Available from

ETS5/ETS6

2 Function overview

With the available as an accessory KNX extension it is possible to integrate a Dimplex heat pump with a heat pump manager into a KNX bus. A total of up to 250 values can be written and read here. Among other things, it is possible to read out the status, the operating data or the history in order to visualize this later on the KNX level. The operating mode, the target hot water temperature or the heating curve could also be changed.

New:
Should the function of the intelligent room temperature control Smart-RTC + be used despite the existing KNX room sensors? From the heat pump manager software WPM_L23.1, it is possible to send the room temperature, room humidity and target room temperature of up to 10 rooms with KNX room sensors from the KNX bus to the heat pump manager. Further information and descriptions are given in the chapter Room temperature control Smart-RTC + made available.

3 System and usage requirements

The minimum system requirement for using the KNX extension is a Dimplex heat pump with heat pump manager WPM 2006, WPM 2007 or WPM EconPlus from software version L20 and higher. For programming, a PC with ETS5 software (not included) and, depending on the software version of the heat pump manager, Data point file needed. Furthermore, the following description assumes knowledge of how to use the ETS software. No details are explained which specifically concern the ETS software.

4 Summary of the necessary steps

5 Installation

ATTENTION
Before opening the device, all circuits must be disconnected from the power supply. All electrical connection work may only be carried out by a qualified electrician or a specialist for specified activities in compliance with the installation and operating instructions.

The installation of the KNX extension takes place on the heat pump manager in the designated slot “Serial Card / BMS Card”. The following steps are carried out:

  • De-energize the heat pump manager

  • Remove the cover of the “Serial Card / BMS Card” slot with a small screwdriver

  • Remove the cover of the “Serial Card / BMS Card” slot with a small screwdriver

  • Installation of the EWPM extension

  • Breaking out the existing cover

  • Close the opening with the cover

 

 

  • Supply the heat pump manager with voltage

5.1 Electrical connection

The connection of the KNX extension to the KNX bus takes place via the enclosed terminal. The power supply of the KNX extension takes place via the KNX bus. It should be noted that a new KNX extension no physical address owns and programmed must become.

5.2 Heat pump manager settings

Depending on the software version of the heat pump manager, the following settings must be checked and, if necessary, adjusted:

Software version

menu

Submenu

Setting value

Software version

menu

Submenu

Setting value

from WPM_L

Network -> with the key «menu" Select

protocol

EIB / KNX

from WPM_L20.2

Network -> with the key «menu" Select

protocol

EIB / KNX

Address range

1..127

from WPM_L23.1

Network -> with the key «menu" Select

protocol

EIB / KNX

Address range

1..207

6 Download the DCA

The integration of the KNX extension into the ETS takes place via a | DCA (Device Control App). The DCA is available after registration in the webshop from http://www.knx.org available under the search term "Carel KSet".

  • Download the DCA

6.1 Import of the DCA into the ETS

After the DCA has been downloaded successfully, it is imported into the ETS. The device is then copied from the online catalog to the existing or new project. If necessary, the online catalog must be updated.

  • Install the DCA

  • Select the DCA

  • Activate the DCA

  • Copy the device into the project

 

 

6.2 Assign physical address

When delivered, the KNX extension no physical address yet and still has to be assigned via the ETS software. First of all, the KNX extension A physical address is assigned via the ETS software and programming is started. In order for the ETS software to find the right device, the KNX extension can be brought into programming mode using the programming button. Then the green LED starts to light up. Was the assigned physical address from the KNX extension assumed, the LED goes out again.

7 Data point file

To select the data points available from the heat pump manager, a 2cf data point file must first be read into the ETS software. Depending on the software version, various 2cf data point files are made available for download on the heat pump manager. After reading in the 2cf data point file, the data points are selected with subsequent assignment of the group addresses and data point types.



WPM software version *

Download file

Changes

away

until

L20.0

L23.5

2cf file L20.0 - L23.5 v4

  • Added data points for hot water

- P_WW_SOLLAB, P_WW_NE_FREI
  • Additional data points 2nd / 3rd heating circuit

- P_HK2-3_END, P_HK2-3_HY, HK2-3_MLZ, P_HK2-3_Max

L20.0

L23.0

2cf file L20.0 - L23.0 v2

 

  • Supplemented data points for solar

- Sol_WM_Tag, Sol_WM_Ges, P_SK_SolPUP - P_SO_RES, P_SOL_EINDIFF, P_SOL_SPMAX - P_SOL_KIPAU, P_SO_KUEHL, P_SO_KICK
  • Additional data points 2nd / 3rd heating circuit

  • Additional data points operating mode switchover

  • Additional data points for cooling limit

L23.1

 

2cf file L23.1 v3

H50

H63

2cf file H50 - H63

 

NOTE
There are different software versions for the heat pump manager. Depending on the software, the files are made available for H or J / L software. The status can be read out in the "Operating data" menu.

7.1 Reading in the data point file

The 2cf data point file is read in via the "DCA" tab.

  • Select the DCA tab

  • Import the 2cf data point file

  • Select the 2cf data point file

  • Select address range 1..127 or 1..207 according to the heat pump manager software setting

 

 

7.2 Data point settings (in progress)

After importing the 2cf data point file, the required data points are selected using the "Data point settings" button. The available data points are given as an overview in the chapter Data point list provided. After the selection, further settings of the data points can be made.

  • KNX DPT type

  • Send condition

8 Data point list

The data point lists listed in the following tables contain the most frequently used addresses. The tables are subdivided according to the menus contained in the heat pump manager. The following examples deal with addresses that have some special features and must be explained separately.

8.1 Operating data

description

variable

index

DPT

Value conversion

R / W

Unit

WPM J / L software

WPM H software

A

B

Outside temperature (R1)

E_Aussen_T

1

27

9.001

0.1

0

R

° C

Return temperature (R2)

E_Rueckl_T

2

29

9.001

0.1

0

R

° C

Return temperature setpoint

HK1_Soll_Temp

53

28

9.001

0.1

0

R

° C

Hot water temperature (R3)

E_Ww_Fuehl

3

30th

9.001

0.1

0

R

° C

Set hot water temperature

Ww_Soll_Temp

58

40

9.001

0.1

0

R

° C

Flow temperature (R9)

E_Vorl_T

5

31

9.001

0.1

0

R

° C

Heat source inlet temperature (R24) *

E_WqT_Ein

6

-

9.001

0.1

0

R

° C

Heat source outlet temperature (R6)

E_WqT_Aus

7

41

9.001

0.1

0

R

° C

Target temperature 2nd heating circuit

HK2_Soll_Temp

54

32

9.001

0.1

0

 

° C

Temperature 2nd heating circuit (R5)

E_HK2_Temp

9

33

9.001

0.1

0

R

° C

Target temperature 3rd heating circuit

HK3_Soll_Temp

55

34

9.001

0.1

0

R

° C

Temperature 3rd heating circuit (R13)

E_HK3_Temp

10

35

9.001

0.1

0

R

° C

Room temperature 1 / RT-RTH Econ

E_Raum1_T

11

36

9.001

0.1

0

R

° C

Room temperature 2

E_Raum2_T

12

38

9.001

0.1

0

R

° C

Room humidity 1 / RT-RTH Econ

E_Raum1_Feu

13

37

9.007

0.1

0

R

%

Room humidity 2

E_Raum2_Feu

14

39

9.007

0.1

0

R

%

Passive cooling

 

 

Flow temperature (R11)

E_KP_VlTemp

19

42

9.001

0.1

0

R

° C

Return temperature (R4)

E_KP_RlTemp

20

43

9.001

0.1

0

R

° C

Passive / active cooling

 

 

Return temp. according to primary circuit (R24)

E_Sole_Temp

21

-

9.001

0.1

0

R

° C

Solar

 

 

Collector sensor (R23)

E_KLF

10

-

9.001

0.1

0

R

° C

Solar cylinder temperature (R22)

E_Sol_Speicher

23

-

9.001

0.1

0

R

° C

Ventilation

 

 

Outside air temperature

Luft_Temp_Aussenluft

120

-

9.001

0.1

0

R

° C

Temperature supply air

Luft_Temp_Zuluft

121

-

9.001

0.1

0

R

° C

Exhaust air temperature

Luft_Temp_Abluft

122

-

9.001

0.1

0

R

° C

Exhaust air temperature

Luft_Temp_Fortluft

123

-

9.001

0.1

0

R

° C

Speed of supply air fan

Luft_Drehzahl_Zuluft

125

-

9.001

1

0

R

1 / min

Exhaust fan speed

Luft_Drehzahl_Abluft

126

-

9.001

1

0

R

1 / min

8.2 History

description

variable

index

DPT

R / W

Unit

WPM J / L software

WPM H software

Compressor 1

BS_Vd1

72

64

7.007

R

H

Compressor 2

BS_Vd2

73

65

7.007

R

H

Primary pump / fan (M11)

BS_PupVen

74

66

7.007

R

H

2nd heat generator (E10)

BS_ZWE

75

67

7.007

R

H

Heating pump (M13)

BS_HUP

76

68

7.007

R

H

Hot water pump (M18)

BS_WUP

77

69

7.007

R

H

Flange heating (E9)

BS_THK

78

70

7.007

R

H

Swimming pool pump (M19)

BS_SUP

79

71

7.007

R

H

Additional circulation pump (M16)

BS_ZUP

71 (from L12)

-

7.007

R

H

Amount of heat* Heating 1-4

WMZ_H_ST1bis4

95

100

7.007

R

kWh

Amount of heat* Heating 5-8

WMZ_H_ST5bis8

96

101

7.007

R

kWh

Amount of heat* Heating 9-12

WMZ_H_ST9bis12

97

102

7.007

R

kWh

Amount of heat* Hot water 1-4

WMZ_WW_ST1bis4

98

103

7.007

R

kWh

Amount of heat* Hot water 5-8

WMZ_WW_ST5bis8

99

104

7.007

R

kWh

Amount of heat* Hot water 9-12

WMZ_WW_ST9bis12

100

105

7.007

R

kWh

Amount of heat* Swimming pool 1-4

WMZ_SW_ST1bis4

101

106

7.007

R

kWh

Amount of heat* Swimming pool 5-8

WMZ_SW_ST5bis8

102

107

7.007

R

kWh

Amount of heat* Swimming pool 9-12

WMZ_SW_ST9bis12

103

108

7.007

R

kWh

Environment energy* 1-4

Qc_H_ST1bis4

126 (from L23.1)

-

7.007

R

kWh

Environment energy* 5-8

Qc_H_ST5bis8

127 (from L23.1)

-

7.007

R

kWh

Environment energy* 9-12

Qc_H_ST9bis12

128 (from L23.1)

-

7.007

R

kWh

Amount of heat solar day

Sol_WM_Tag

106

-

7.007

R

kWh

Total solar heat

Sol_WM_Ges

107

-

7.007

R

kWh

8.2.1 Example of heat quantities*

The amount of heat is made up of 3 variables. These 3 variables must be put together with the following formula for the amount of heat.

Heat quantity heating = (WMZ_H_ST9bis12 * 100000000) + (WMZ_H_ST5bis8 * 10000) + WMZ_H_ST1bis4

The amount of heat for "hot water" and "swimming pool" is determined in the same way as this description. However, the corresponding variables are used.

8.3 Settings

8.3.1 1st heating circuit

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

Parallel shift

P_HK1_WK

35

1

7.001

R / W

0

38

K

 

0 = -19
1 = -18
2 = -17
3 = -16
4 = -15
5 = -14
6 = -13
7 = -12
8 = -11
9 = -10
10 = -9
11 = -8
12 = -7
13 = -6
14 = -5
15 = -4
16 = -3
17 = -2
18 = -1
19 = 0

20 = 1
21 = 2
22 = 3
23 = 4
24 = 5
25 = 6
26 = 7
27 = 8
28 = 9
29 = 10
30 = 11
31 = 12
32 = 13
33 = 14
34 = 15
35 = 16
36 = 17
37 = 18
38 = 19
 

 

Room temperature

P_HK1_RT_SOLL

46

21

9.001

R / W

15.0

30.0

° C

Fixed setpoint temperature

P_HK1_FWR_SOLL

36

2

7.001

R / W

18

60

° C

Heating curve end point

P_HK1_END

37

14

7.001

R / W

20

70

° C

Hysteresis

P_HK_HYST

47

22

7.001

R / W

0.5

5.0

K

Target temp. dyn. cooling

P_KUEHL_DY_SOLL

42 (up to L22.9)

23

7.001

R / W

10

30

° C

Target temp. dyn. Cooling at 15 ° C AT

P_Kuehl_Dyn_Soll1

42 (from L22.9)

-

7.001

R / W

10

30

° C

Target temp. dyn. Cooling at 35 ° C AT

P_Kuehl_Dyn_Soll2

133 (from L22.9)

-

7.001

R / W

10

30

° C

8.3.2 2nd / 3rd heating circuit

In order to be able to make changes to the 2nd or 3rd heating circuit, the switchover takes place via the HC_Value variable. After switching over the variables, it is possible to change parameters on the desired heating circuit without any problems.

description

variable

index

DPT

Value conversion

R / W

Range

Unit

WPM J / L software

WPM H software

A

B

Min

Max

Selection 2./3. Heating circuit

HK_Wert

81

7.001

 

 

R / W

2

3

no

 

2 = 2nd heating circuit
3 = 3rd heating circuit

Heating curve end point 2nd / 3rd Heating circuit

P_HK2-3_END

83

9.001

1

0

R / W

20

70

° C

Fixed value temperature 2./3. Heating circuit

P_FWR_SOLL

84

9.001

1

0

R / W

20

60

° C

Parallel shift 2nd / 3rd Heating circuit

P_WK

85

9.002

1

0

R / W

0

38

K

 

0 = -19
1 = -18
2 = -17
3 = -16
4 = -15
5 = -14
6 = -13
7 = -12
8 = -11
9 = -10
10 = -9
11 = -8
12 = -7
13 = -6
14 = -5
15 = -4
16 = -3
17 = -2
18 = -1
19 = 0

20 = 1
21 = 2
22 = 3
23 = 4
24 = 5
25 = 6
26 = 7
27 = 8
28 = 9
29 = 10
30 = 11
31 = 12
32 = 13
33 = 14
34 = 15
35 = 16
36 = 17
37 = 18
38 = 19
 

 

Mixer running time 2nd / 3rd Heating circuit

HK2-3_MLZ

86

7.006

1

0

R / W

1

6

Min

Maximum temperature 2nd / 3rd Heating circuit

P_HK2-3_Max

87

9.001

1

0

R / W

30

70

° C

Mixer hysteresis 2nd / 3rd Heating circuit

P_HK2-3_HY

93

9.001

0.1

0

R / W

0.5

2.0

K

8.3.3 Operation mode

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

Operation mode

BA_active

14

6

7.001

R / W

0

5

no

 

0 = summer
1 = auto
2 = vacation
3 = party
4 = 2nd heat generator
5 = cooling

Number of party hours

P_PARTY_HOUR

15

7

7.001

R / W

1

72

hour

Number of vacation days

P_URLAUB_TAGE

16

8

7.001

R / W

1

150

day

Automatic operating mode switching

Switchover inactive / active

P_TBaUs

108

-

1.001

R / W

0

1

no

Time Delay

P_TBaUs_Zeit

11

-

7.007

R / W

0

150

hour

Limit temperature heating

P_TBaUs_2

13

-

6.010

R / W

-30

40

° C

Cooling limit temperature

P_TBaUs_1

12

-

6.010

R / W

0

40

° C

Ventilation

stages

P_Luft_Stufe

33

-

7.001

R / W

0

5

no

 

0 = off
1 = automatic
2 = level 1
3 = level 2
4 = level 3
5 = intermittent ventilation

Time value burst ventilation

Luft_Zeit_Stoss

127

-

7.001

R / W

15

90

min

8.3.4 Hot water

description

variable

index

DPT

Value conversion

R / W

Range

Unit

WPM J / L software

WPM H software

A

B

Min

Max

Hysteresis

P_WW_HY

44

3

9.002

1

0

R / W

2

15

K

Target temperature

P_WW_SOLL

46

21

9.001

1

0

R / W

30

85

° C

Target temperature minimum

P_WW_MIN_TEMP

144

-

9.001

1

0

R / W

10

60

° C

Target temperature maximum

P_WW_SOLLABB

47

-

9.001

1

0

R / W

30

85

° C

Enable reheating

P_WW_NE_FREI

138

-

1,001

 

 

R / W

0

1

 

8.3.5 Swimming pool

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

Hysteresis

P_SW_HY

48

-

7.001

R / W

1

20

K

Target temperature

P_SW_SOLL

50

-

7.001

R / W

5

60

° C

8.3.6 Solar

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

Switch-on difference storage tank charging

P_SOL_EINDIFF

26

-

9.002

R / W

1

30

K

Maximum storage temperature

P_SOL_SPMAX

27

-

9.001

R / W

30th

95

° C

Collector cooling function

P_SO_KUEHL

118

-

1.001

R / W

0

1

no

Pump kick

P_SO_KICK

119

-

1.001

R / W

0

1

no

Pump kick waiting time

P_SOL_KIPAU

32

-

8.006

R / W

10

60

sec

Reset heat quantity

P_SO_RES

120

-

1.001

R / W

0

1

no

8.4 Selection of time functions

Access to the time functions, e.g. for blocking, lowering / increasing values or times, takes place by switching the object DU_ZF_Wert.

8.4.1 Lowering / raising

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

1st heating circuit

Subsidence

DU_ZF_Wert

64

7.001

R / W

1

1

no

Raising

DU_ZF_Wert

64

7.001

R / W

2

2

no

2nd heating circuit

Subsidence

DU_ZF_Wert

64

7.001

R / W

3

3

no

Raising

DU_ZF_Wert

64

7.001

R / W

4th

4th

no

3rd heating circuit

Subsidence

DU_ZF_Wert

64

7.001

R / W

5

5

no

Raising

DU_ZF_Wert

64

7.001

R / W

6th

6th

no

Time function

Start hour 1

P_ST_H1

65

7.001

R / W

0

23

hour

Start minute 1

P_ST_M1

66

7.001

R / W

0

59

min

End of hour 1

P_END_H1

67

7.001

R / W

0

23

hour

End of minute 1

P_END_M1

68

7.001

R / W

0

59

min

Start hour 2

P_ST_H2

69

7.001

R / W

0

23

hour

Start minute 2

P_ST_M2

70

7.001

R / W

0

59

min

End of lesson 2

P_END_H2

71

7.001

R / W

0

23

hour

End of minute 2

P_END_M2

72

7.001

R / W

0

59

min

Sunday

P_SO

73

7.001

R / W

0

3

no

Monday

P_MO

74

7.001

R / W

0

3

no

Tuesday

P_DI

75

7.001

R / W

0

3

no

Wednesday

P_MI

76

7.001

R / W

0

3

no

Thursday

P_DO

77

7.001

R / W

0

3

no

Friday

P_FR

78

7.001

R / W

0

3

no

Saturday

P_SA

79

7.001

R / W

0

3

no

 

0 = yes
1 = no
2 = time 1
3 = time 2

Reduction / increase value

P_DIFF

80

7.001

R / W

0

19th

K

Active time 1

P_Zeit1_Aktiv

125

1,001

R

0

1

no

Active time 2

P_Zeit2_Aktiv

126

1,001

R

0

1

no

8.4.2 Hot water lock

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

Hot water lock

DU_ZF_Wert

64

7.001

R / W

7th

7th

no

Time function

Start hour 1

P_ST_H1

65

7.001

R / W

0

23

hour

Start minute 1

P_ST_M1

66

7.001

R / W

0

59

min

End of hour 1

P_END_H1

67

7.001

R / W

0

23

hour

End of minute 1

P_END_M1

68

7.001

R / W

0

59

min

Start hour 2

P_ST_H2

69

7.001

R / W

0

23

hour

Start minute 2

P_ST_M2

70

7.001

R / W

0

59

min

End of lesson 2

P_END_H2

71

7.001

R / W

0

23

hour

End of minute 2

P_END_M2

72

7.001

R / W

0

59

min

Sunday

P_SO

73

7.001

R / W

0

3

no

Monday

P_MO

74

7.001

R / W

0

3

no

Tuesday

P_DI

75

7.001

R / W

0

3

no

Wednesday

P_MI

76

7.001

R / W

0

3

no

Thursday

P_DO

77

7.001

R / W

0

3

no

Friday

P_FR

78

7.001

R / W

0

3

no

Saturday

P_SA

79

7.001

R / W

0

3

no

 

0 = yes
1 = no
2 = time 1
3 = time 2

Active time 1

P_Zeit1_Aktiv

125

1,001

R

0

1

no

Active time 2

P_Zeit2_Aktiv

126

1,001

R

0

1

no

8.4.3 Hot water thermal disinfection

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

Thermal disinfection

DU_ZF_Wert

64

7.001

R / W

8th

8th

no

Time function

Start hour

P_ST_H1

65

7.001

R / W

0

23

hour

Start minute

P_ST_M1

66

7.001

R / W

0

59

min

Sunday

P_SO

73

7.001

R / W

0

3

no

Monday

P_MO

74

7.001

R / W

0

3

no

Tuesday

P_DI

75

7.001

R / W

0

3

no

Wednesday

P_MI

76

7.001

R / W

0

3

no

Thursday

P_DO

77

7.001

R / W

0

3

no

Friday

P_FR

78

7.001

R / W

0

3

no

Saturday

P_SA

79

7.001

R / W

0

3

no

 

0 = yes
1 = no
2 = time 1
3 = time 2

temperature

P_DIFF

80

7.001

R / W

60

85

° C

active

P_Zeit1_Aktiv

125

1,001

R

0

1

no

8.4.4 DHW circulation pump

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

Circulation pump

DU_ZF_Wert

64

7.001

R / W

12th

12th

no

Time function

Start hour 1

P_ST_H1

65

7.001

R / W

0

23

hour

Start minute 1

P_ST_M1

66

7.001

R / W

0

59

min

End of hour 1

P_END_H1

67

7.001

R / W

0

23

hour

End of minute 1

P_END_M1

68

7.001

R / W

0

59

min

Start hour 2

P_ST_H2

69

7.001

R / W

0

23

hour

Start minute 2

P_ST_M2

70

7.001

R / W

0

59

min

End of lesson 2

P_END_H2

71

7.001

R / W

0

23

hour

End of minute 2

P_END_M2

72

7.001

R / W

0

59

min

Sunday

P_SO

73

7.001

R / W

0

3

no

Monday

P_MO

74

7.001

R / W

0

3

no

Tuesday

P_DI

75

7.001

R / W

0

3

no

Wednesday

P_MI

76

7.001

R / W

0

3

no

Thursday

P_DO

77

7.001

R / W

0

3

no

Friday

P_FR

78

7.001

R / W

0

3

no

Saturday

P_SA

79

7.001

R / W

0

3

no

 

0 = yes
1 = no
2 = time 1
3 = time 2

Active time 1

P_Zeit1_Aktiv

125

1,001

R

0

1

no

Active time 2

P_Zeit2_Aktiv

126

1,001

R

0

1

no

8.5 Display ads

description

variable

IN / OUT

index

DPT

R / W

Range

Unit

WPM L software

WPM J software

WPM H software

Min.

Max.

Status messages

Status_Wert

OUT

103

43

14

7.001

R

0

30th

no

Blocking messages

Sperr_Wp_Wert

OUT

104

59

94

7.001

R

1

42

no

Fault messages

Stoerung_Wert

OUT

105

42

13

7.001

R

1

31

no

Sensors

Fehler_Wert

OUT

106

-

-

7.001

R

1

27

no

8.5.1 Status reports

Value

Description

L software

H / J software

0

the end

the end

1

the end

Heat pump on heating

2

Heat

Heat pump on heating

3

swimming pool

Heat pump A swimming pool

4

Hot water

Heat pump One hot water

5

Cool

Heat pump One heating + 2nd heat generator

6

 

Heat pump A swimming pool + 2nd heat generator

7

 

Heat pump One hot water + 2nd heat generator

8

 

Primary pump supply

9

 

Heating rinse

10

Defrost

Lock (see value for lock J software)

11

Flow monitoring

Lower limit of use

12

 

Low pressure limit

13

 

Low pressure shutdown

14

 

High pressure protection

15

 

Switching cycle lock

16

 

Minimum service life

17

 

Network load

18

 

Flow monitoring

19

 

2. Heat generator

20

 

Low pressure brine

21

 

Heat pump on defrost

22

 

Upper limit of use

23

 

External lock

24

Operating mode switchover delay

Operating mode cooling

25

 

Frost protection cold

26

 

Lead limit

27

 

Dew point monitor

28

 

dew point

29

 

Passive cooling

30

Lock (see value for lock L software)

 

8.5.2 Lock notifications

Value

Description

L software

J software

H software

0

 

 

 

1

 

Application limit HT

Outside temperature

2

Volume flow

Application limit WP

Bivalent alternative

3

 

Regenerative

Bivalent regenerative

4

 

 

Rewind

5

Function control

Hot water reheating

Hot water

6

Application limit HT

System control

System control

7

System control

EVU lock

EVU lock

8

Cooling switchover delay

 

 

9

Pump feed

High pressure

 

10

Minimum service life

Low pressure

 

11

Network load

Flow

 

12

Switching cycle lock

Soft starter

 

13

Hot water reheating

 

 

14

Regenerative

 

 

15

EVU lock

 

 

16

Soft starter

 

 

17

Flow

 

 

18

Application limit heat pump

 

 

19

High pressure

 

 

20

Low pressure

 

 

21

Application limit heat source

 

 

23

System limit

 

 

24

Load primary circuit

 

 

25

External lock

 

 

33

EvD initialization

 

 

34

2. Heat generator released

 

 

35

Fault (see value for fault messages)

 

 

36

 

Pump feed

 

37

 

Minimum service life

 

38

 

Network load

 

39

 

Switching cycle lock

 

40

 

Application limit heat source

 

41

 

External lock

 

42

 

2. Heat generator

 

43

 

Fault (see value for fault messages)

 

8.5.3 Fault messages

Value

Description

L software

H / J software

0

no mistake

no mistake

1

Error N17.1

 

2

Error N17.2

 

3

Error N17.3

Load compressor

4

Error N17.4

Coding

5

 

Low pressure

6

Electronic Ex valve

Antifreeze

7

 

Outside sensor short circuit or break

8

 

Return sensor short circuit or break

9

 

Hot water sensor short circuit or break

10

WPIO

Frost protection sensor short circuit or break

11

 

2nd heating circuit sensor short circuit or break

12

Inverter

Freeze protection sensor short circuit or break

13

WQIF

Low pressure brine

14

 

Motor protection primary

15

Sensors

Flow

16

Low pressure brine

Hot water

17

 

High pressure

19

 ! Primary circuit

Hot gas thermostat

20

 ! Defrost

Application limit cooling

21

 ! Low pressure brine

 

22

 ! Hot water

 

23

 ! Load compressor

Temperature difference

24

 ! Coding

 

25

 ! Low pressure

 

26

 ! Frost protection

 

28

 ! High pressure

 

29

 ! Temperature difference

 

30

 ! Hot gas thermostat

 

31

 ! Flow

 

8.5.4 Sensors

Value

Description

L software

1

Outside sensor (R1)

2

Return sensor (R2)

3

Hot water sensor (R3)

4

Coding (R7)

5

Flow sensor (R9)

6

2nd heating circuit sensor (R5)

7

3rd heating circuit sensor (R13)

8

Regenerative sensor (R13)

9

Room sensor 1

10

Room sensor 2

11

Heat source outlet sensor (R6)

12

Heat source inlet sensor (R24) *

14

Collector sensor (R23)

15

Low pressure sensor (R25)

16

High pressure sensor (R26)

17

Room humidity 1

18

Room humidity 2

19

Frost protection cold sensor

20

Hot gas

21

Return sensor (R2.1)

22

Swimming pool sensor (R20)

23

Flow sensor cooling passive (R11)

24

Return flow sensor cooling passive (R4)

26

Solar cylinder sensor (R22)

28

Demand sensor for heating (R2.2)

29

RTM Econ

30

Demand sensor cooling (R39)

8.6 Entrances

description

variable

index

DPT

R / W

Unit

WPM J / L software

WPM H software

Hot water thermostat (ID1)

E_ID1

3

57

1.001

R

no

Swimming pool thermostat (ID2)

E_ID2

4

58

1.001

R

no

EVU lock (ID3)

E_ID3

5

56

1.001

R

no

External lock (ID4)

E_ID4

6

63

1.001

R

no

8.7 Outputs

description

variable

index

DPT

R / W

Unit

WPM J / L software

WPM H software

Compressor 1

A_VD1

41

80

1.001

R

no

Compressor 2

A_VD2

42

81

1.001

R

no

Fan (M2)

A_VEN

43

82

1.001

R

no

Primary pump (M11)

A_PUP

43

82

1.001

R

no

2nd heat generator (E10)

A_ZWE

44

83

1.001

R

no

Heating pump (M13)

A_HUP1

45

84

1.001

R

no

Hot water pump (M18)

A_WUP

46

85

1.001

R

no

Mixer (M21) open

A_Hk3_MiA

47

86

1.001

R

no

Mixer (M21) CLOSED

A_Hk3_MiZ

48

87

1.001

R

no

Additional circulation pump (M16)

A_ZUP

49

88

1.001

R

no

(E9)

A_FH

50

89

1.001

R

no

Heating pump (M15)

A_HUP2

51

90

1.001

R

no

Mixer (M22) open

A_Hk2_MiA

52

91

1.001

R

no

Mixer (M22) closed

A_Hk2_MiZ

53

92

1.001

R

no

Swimming pool pump (M19)

A_SUP

56

95

1.001

R

no

Collective fault message (H5)

A_STF

57

-

1.001

R

no

Circulation pump (M24)

A_ZWUP

58

-

1.001

R

no

Heating pump (M14)

A_1_NO1

59

94

1.001

R

no

Cooling pump (M17)

A_KUP

60

99

1.001

R

no

Heating pump (M20)

A_HUP3

61

-

1.001

R

no

Changeover room thermostats
Heating / cooling (N9)

A_RAUMT

66

96

1.001

R

no

Primary pump cooling (M12)

A_PUPK

68

98

1.001

R

no

Solar pump (M23)

A_Solar_Pump

71

-

1.001

R

no

8.8 System control

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

Primary pumps

P_SK_PRIM

160

114

1.001

R / W

0

1

no

Secondary pumps

P_SK_SEK

161

115

1.001

R / W

0

1

no

Hot water pump M18

P_SK_WUP

162

116

1.001

R / W

0

1

no

Mixer M21 / M22

P_SK_MI

163

117

1.001

R / W

0

1

no

Solar pump M23

P_SK_SolPUP

164

-

1.001

R / W

0

1

no

Circulation pump M24

P_FK_ZWUP

166

-

1.001

R / W

0

1

no

 

0 = off
1 = on

8.9 Time alignment

Using the time synchronization, it is possible to write the current date and time via the interface. So that the change is accepted by the heat pump manager, the value 1 must be written to the associated "set register" immediately after the time has been written. Only then will the change be applied. The value of the "set register" is automatically reset to the value 0 after writing.

description

variable

index

DPT

R / W

Range

Unit

WPM J / L software

WPM H software

Min

Max

hour

NEW_HOUR

5

27

7.001

R / W

0

23

hour

set hour

_set_hour

102

-

1.001

W

 

no

minute

NEW_MINUTE

6

28

7.001

R / W

0

59

min

set minute

_set_minute

103

-

1.001

W

 

no

month

NEW_MONTH

7

29

7.001

R / W

1

12

month

set month

_set_month

105

-

1.001

W

 

no

weekday

NEW_WEEKDAY

8

30th

7.001

R / W

1

7

wday

 

1 = Monday
2 = Tuesday
3 = Wednesday
4 = Thursday
5 = Friday
6 = Saturday
7 = Sunday

set day of the week

_set_weekday

107

-

1.001

W

 

no

Day

NEW_DAY

9

31

7.001

R / W

1

31

day

set day

_set_day

104

-

1.001

W

 

no

year

NEW_YEAR

10

32

7.001

R / W

0

99

year

set year

_set_year

106

-

1,001

W

 

no

9 Function descriptions

In this chapter, some functional descriptions, their implementation and recommendations are collected and explained.

9.1 Room temperature control Smart-RTC +

From software version WPM_L23.1 it is possible to use the function of the intelligent room temperature control Smart-RTC + via the BMS interface with the KNX protocol available on the heat pump manager.

The values of the room temperature, the room humidity (for cooling) and the target room temperature of a maximum of 10 rooms must be sent to the heat pump manager via the KNX bus. The heat pump manager uses these values to calculate the maximum system temperature required for heating and the minimum possible system temperature for silent cooling, taking the dew point into account. At the end of this functional description there is a Example project for the ETS4 / 5 made available. This project folder also contains the XML file related to this project.

9.1.1 Necessary settings on the heat pump manager

To use the BMS interface for the intelligent room temperature control Smart-RTC +, additional settings must be made or adjusted on the heat pump manager.

Software version

Pre-configuration menu

Submenu

Setting value

Software version

Pre-configuration menu

Submenu

Setting value

from WPM_L23.1

with the key combination «menu"+"ESC" Select

1st heating circuit

Heating or heating / silent cooling

1st heating / cooling circuit heating control via

Room temperature

1. Heating / cooling circuit heating room control

BMS

1. Heating / cooling circuit cooling room control

BMS

1. Heating / cooling circuit Number of room controls

01-10

When using an additional 2nd heating or heating / cooling circuit, the settings must be made in the same way as for the 1st heating circuit.

Software version

Pre-configuration menu

Submenu

Setting value

Software version

Pre-configuration menu

Submenu

Setting value

from WPM_L23.1

with the key combination «menu"+"ESC" Select

2nd heating circuit

Heating or heating / silent cooling

2nd heating / cooling circuit heating control via

Room temperature

2. Heating / cooling circuit heating room control

BMS

2. Heating / cooling circuit cooling room control

BMS

2nd heating / cooling circuit number of room controls

01-10

9.1.2 Room control data points

Since only a limited number of addresses are available, the time function switch from Chapter is required to write the values for the rooms "Selection of time functions" utilized. The addresses 50 - 59 for the 1st heating / cooling circuit, 60 - 69 for the 2nd heating / cooling circuit and 70 - 79 for the 3rd heating / cooling circuitare are available for access. A switchover takes place via the object DU_ZF_Wert.

Namen

Variable

Index

DPT

Value Conversion

R/W

Range

Unit

A

B

Min

Max

Room addresses 1st heating / cooling circuit

DU_ZF_Wert

272

7.001

1

0

R/W

50

59

no

Room addresses 2nd heating / cooling circuit

DU_ZF_Wert

272

7.001

1

0

R/W

60

69

no

Room addresses 3rd heating / cooling circuit

DU_ZF_Wert

272

7.001

1

0

R/W

70

79

no

Room temperature 50-79 BMS

E_Raum1_T

11

9.001

0,1

0

R/W

10.0

50.0

0.1 °C

Room humidity 50-79 BMS

E_Raum1_Feu

13

9.007

0,1

0

R/W

20.0

90.0

0.1 %

Set room temperature 50-79 BMS

P_Raum_Soll

288

7.001

1

0

R/W

100

300

°C

Room release 50-79 BMS

Raum_Frei_HzK

371

7.001

1

0

R/W

1

3

no

 

1: heating (cooling blocked)
3: heating and cooling

Zustand Stellventil

Ventil_Raum

177

1.001

 

 

R

0

1

no

 

0: closed
1: open

Number Room Controller

P_HK1_RT_thT_Anz

347

7.001

1

0

R

1

10

no

9.1.3 Example for writing the room values

The following table relates to the group addresses in the sample project.

Surname

e.g. Group Address

Surname

e.g. Group Address

Read number of rooms

14/5/1 (sensor)

Switch room address 50 - 79

14/5/2 (actuator)

Write actual room temperature RIT addr. 50 - 79

14/5/4 (actuator)

Write actual room humidity RIF addr. 50 - 79

14/5/6 (actuator)

Write room target temperature RST addr. 50 - 79

14/5/8 (actuator)

Write room release RFG addr. 50 - 79

14/5/10 (actuator)

The address (14/5/2) is switched over to transfer the room values. The following description is intended to represent one possibility of such an implementation. The room values are written to the heat pump manager every 1 minute per room. With 10 rooms, this means a maximum processing time of 10 minutes. This lead time is not a problem with the small changes in room values and will not limit comfort.

9.1.3.1 Module 1 - Switching the room addresses

In module 1, a counter is first created which counts up by +1 every minute (pulse for minute). The count starts at 50 and ends with the number of room controllers set (sensor 14/5/1). After the number of set room controllers has been reached, counting starts again at address 50. This count value is written to actuator 14/5/2 every minute. At the same time, marker 1 (AI memory flags 1) is also filled with the counter value. Flag 3 (AI memory flags 3) triggered with the minute pulse. Both flags are required in module 2. The input M with the constant 0 means that the counter starts again at 50 when the number of set room controllers is reached and does not stop when the set room controllers are reached.

9.1.3.2 Module 2 - Delayed writing of the room values

After switching the room addresses with module 1, the writing of the values via actuators 14/5/4 (room temperature), 14/5/6 (room humidity), 14/5/8 (target room temperature) and 14 / is delayed by 3 seconds. 5/10 (room clearance). For this, marker 1 (AI memory flags 1) and marker 3 (AI memory flags 3) from step 1 are required. First, a delayed pulse by 3 seconds (delayed time 3 sec.) Is filled via marker 3 (AI memory flags 3). The delayed pulse triggers the analogue memory, which is already filled with marker 1 (AI memory flags 1) count value from module 1. If the delayed pulse is triggered, the value is written from the analogue memory to marker 2 (AI memory flags 2). The value in marker 2 (AI memory flags 2) is still required in module 3.

9.1.3.3 Module 3 - Compare the room address to be written

The marker 2 (AI memory flags 2) from module 2 contains the current value of the room address that is to be written. So that the correct trigger of the room address is triggered, the room address from marker 2 (AI memory flags 2) must be compared. The marker 2 (AI memory flags 2) is compared with the constant 50 (Constant 50). If the value is the same, another marker 50 (AI memory flags 50) is set. The marker 50 (AI memory flags 50) is required in module 4 and triggers the trigger there.

9.1.3.4 Module 4 - Writing the room values to the buffer

Module 4 is explained using the example of the target room temperature for room address 50 (Room-set-temperature 50). First, the target room temperature (Room-set-temperature 50) is multiplied by the factor x10. This is necessary because only integers (*) are written. The result is written to an analogue memory. If the marker 50 (AI memory flags 50) is triggered from step 3, the number in the analog memory (analogue memory) is written to the marker RST 50 (AI memory flags RST 50), which in turn simultaneously drives the actuator 14/5 / 8 triggers for the target room temperature.

9.1.3.5 Module 5 - Writing the room values to the heat pump manager

Module 5 shows how the room values are triggered in the actuator. It stands
RIT => actual room temperature
RIF => actual room humidity
RST => target room temperature
RFG => room release.

9.1.3.6 Summary

The modules 1 - 5 serve as an example and represent a possibility for the implementation of the description of the room values. The process was deliberately divided into individual modules so that the process can be explained as simply as possible. The modules shown can also be combined, structured differently, or other paths can be selected.

9.2 Smart-Grid / SG Ready

The use of photovoltaic electricity ultimately represents a load-variable tariff, since the heat pump can be operated with inexpensive electricity with photovoltaic yield. In this case, a digital input for "green" electricity can be connected on the heat pump manager. In this operating state, the heat pump runs in increased mode for room heating (return target temperature + increase value) and hot water preparation (maximum temperature hot water). The possibility of release via the available interfaces is also given from heat pump manager software version L20.2. The wiring of the digital input is then not required to enable the function.

9.2.1 Operating states

Condition

Address

Description

action

3

4th

Red

0

1

In this state, the heat pump runs in reduced mode for space heating and hot water generation.

  • the adjustable reduction value of the respective heating circuit applies to room heating

  • The adjustable minimum hot water temperature applies to hot water generation

yellow

0

0

In this state, the heat pump runs in the set normal mode.

 

green

1

0

In this state, the heat pump runs in increased mode for space heating and hot water preparation.

  • the adjustable increase value of the respective heating circuit applies to room heating

  • The adjustable maximum hot water temperature applies to hot water generation *

  • In the case of bivalent-renewable systems, the heat pump is not blocked; the heat pump receives priority 1 in this state

9.2.2 Implementation on the heat pump manager

 

Address

Datapoint type

IN / OUT

Conversion Rule

Conversion Value

DPT

R / W

Unit

Surname

WPM software L

Operating status "green"

3

Boolean

IN / OUT

None

 

1,001

R / W

no

Operating status "red"

4th

Boolean

IN / OUT

None

 

1,001

R / W

no

10 Meaning of the LED

LED

 

meaning

solution

LED

 

meaning

solution

Red

Shines

No communication between the KNX extension and the heat pump manager

  • WPM address incorrect

  • WPM baud rate incorrect

  • wrong protocol

green

Shines

The programming button for the assignment of the physical address has been pressed. The KNX extension waits for the physical address to be assigned by the ETS.

 

Flashing quickly

The configuration file was not loaded.

  • Configuration via the ETS must be loaded

Flashes slowly

The configuration is loaded from the ETS.

 

Green red

Both shine

No power supply via the KNX bus.

Check the

  • Power supply of the KNX bus

  • electrical connections

  • Polarity of the connections "+/-"

  • Connections on the plug

Both flash

The firmware of the KNX extension is updated.

 

EWPM extension

 

1

Programming button

2

LED red

3

LED green

11 Contact

For further questions, information and suggestions, please send an email to:

ferndiagnose@gdts.one

with information from:

  • Heat pump designation

  • Software status heat pump manager

  • Designation of the ETS version

  • ETS export of the associated group addresses