LWPM 410 (EN)

Extension for a Modbus RTU connection

The heat pump manager can communicate with external systems via the LWPM 410 extension, which is available as an accessory. The Modbus protocol, which is freely available on the market and can be implemented on other bus systems, serves as the interface protocol. It should be noted that over 100 variables can be transferred to the extension, which can be read out individually or transferred to a higher-level bus system.

LWPM 410 extension

Order reference

LWPM 410

item number

339410

Device type

Slave

protocol

RTU

baud rate

1200, 2400, 4800, 9600, 19200

Data format software version <L23

8N1

Data bits

8th

Parity

None

Stop bits

1

Data format software version> L23

8N1, 8N2, 8O1, 8O2, 8E1, 8E2

Data bits

8th

Parity

None, Even, Odd

Stop bits

1, 2

Network address

1 ... 207

interface

RS485

Cable sizing

2 x 0.5 mm² shielded
max.50m

Connection type

Screw terminals

System requirement

The minimum system requirement for using the LWPM 410 extension is a Dimplex heat pump with heat pump manager WPM 2006, WPM 2007 or WPM EconPlus with software version H_H50 and higher.

Modbus / RTU

The Modbus protocol is a communication protocol based on the master / slave principle. A master device controls and monitors the entire data transmission in the network / bus system, the connected slave devices only respond when requested. The Dimplex heat pump manager can process the Modbus protocol in RTU mode.

Function codes supported

Type

R / W

Function code

Modbus function

Type

R / W

Function code

Modbus function

Digital

R.

01 (0x01)

Read coils

Digital

R.

02 (0x02)

Read Discrete Inputs

Analogue

R.

03 (0x03)

Read Holding Register

Analogue

R.

04 (0x04)

Read input register

Digital

W.

05 (0x05)

Write single coil

Analogue

W.

06 (0x06)

Write single register

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 LWPM 410 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

  • Installation of the LWPM extension

  • Breaking out the existing cover

  • Close the opening with the enclosed cover

 

 

  • Supply the heat pump manager with voltage

Heat pump manager settings

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

  • from WPM_H with the key combinations «menu" and "Enter » in the "Modem" settings

  • from WPM_L with the key «menu»In the" Network "settings

    • Protocol: Modbus

    • Baud rate: 9600 -> factory setting, adapt to the network if necessary

    • Address: 001 -> factory setting, if necessary adapt to the end devices in the network

  • from WPM_L20.2 with the key «menu»In the" Network "settings

    • Protocol: Modbus

    • Baud rate: 9600 -> factory setting, adapt to the network if necessary

    • Address: 001 -> factory setting, if necessary adapt to the end devices in the network

    • Address range: 1..127 -> absolutely required

Data point list

Operating data

 

KNX / EIB

 

Modbus

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

Datapoint type

R / W

Unit

Surname

WPM software J / L

WPM software H

Outside temperature (R1)

1

27

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Return temperature (R2)

2

29

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Return temperature setpoint

53

28

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Hot water temperature (R3)

3

30th

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Set hot water temperature

58

40

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Flow temperature (R9)

5

31

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Heat source inlet temperature (R24) *

6th

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Heat source outlet temperature (R6)

7th

41

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Target temperature 2nd heating circuit

54

32

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Temperature 2nd heating circuit (R5)

9

33

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Target temperature 3rd heating circuit

55

34

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Temperature 3rd heating circuit (R13)

10

35

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Room temperature 1 / RT-RTH Econ

11th

36

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Room temperature 2

12th

38

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Room humidity 1 / RT-RTH Econ

13th

37

16 bit float

OUT

register

None

 

9.001

unsigned 16 bit

R.

° C

Room humidity 2

14th

39

16 bit float

OUT

register

None

 

9.001

unsigned 16 bit

R.

° C

Passive cooling

Flow temperature (R11)

19th

42

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Return temperature (R4)

20th

43

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Passive / active cooling

Return temp. according to primary circuit (R24)

21

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Solar

Collector sensor (R23)

10

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Solar storage tank (R22)

23

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

ventilation

Outside air temperature

120

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Supply air temperature

121

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Exhaust air temperature

122

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Exhaust air temperature

123

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

° C

Speed of supply air fan

125

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

1 / min

Exhaust fan speed

126

-

16 bit float

OUT

register

None

 

9.001

signed 16 bit

R.

1 / min

*NOTE
The heat source inlet is only available for heat pumps with an electronic expansion valve.

history

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Unit

WPM software J / L

WPM software H

Surname

RTU

IP

RTU

IP

Compressor 1

72

64

unsigned 16 bit

OUT

register

None

 

7.007

R.

H

Compressor 2

73

65

unsigned 16 bit

OUT

register

None

 

7.007

R.

H

Primary pump / fan (M11)

74

66

unsigned 16 bit

OUT

register

None

 

7.007

R.

H

2nd heat generator (E10)

75

67

unsigned 16 bit

OUT

register

None

 

7.007

R.

H

Heating pump (M13)

76

68

unsigned 16 bit

OUT

register

None

 

7.007

R.

H

Hot water pump (M18)

77

69

unsigned 16 bit

OUT

register

None

 

7.007

R.

H

Flange heating (E9)

78

70

unsigned 16 bit

OUT

register

None

 

7.007

R.

H

Swimming pool pump (M19)

79

71

unsigned 16 bit

OUT

register

None

 

7.007

R.

H

Additional circulation pump (M16)

71
from L12

-

unsigned 16 bit

OUT

register

None

 

7.007

R.

H

Amount of heat* Heating 1-4

223

5096

228

5101

unsigned 16 bit

OUT

register

None

 

7.007

R.

kWh

Amount of heat* Heating 5-8

224

5097

229

5102

unsigned 16 bit

OUT

register

None

 

7.007

R.

kWh

Amount of heat* Heating 9-12

225

5098

230

5103

unsigned 16 bit

OUT

register

None

 

7.007

R.

kWh

Amount of heat* Hot water 1-4

226

5099

231

5104

unsigned 16 bit

OUT

register

None

 

7.007

R.

kWh

Amount of heat* Hot water 5-8

227

5100

232

5105

unsigned 16 bit

OUT

register

None

 

7.007

R.

kWh

Amount of heat* Hot water 9-12

228

5101

233

5106

unsigned 16 bit

OUT

register

None

 

7.007

R.

kWh

Amount of heat* Swimming pool 1-4

229

5102

234

5107

unsigned 16 bit

OUT

register

None

 

7.007

R.

kWh

Amount of heat* Swimming pool 5-8

230

5103

235

5108

unsigned 16 bit

OUT

register

None

 

7.007

R.

kWh

Amount of heat* Swimming pool 9-12

231

5104

236

5109

unsigned 16 bit

OUT

register

None

 

7.007

R.

kWh

*NOTE
A quantity of heat can only be output for heat pumps with pressure sensors or an external heat meter WMZ!

Example of heat quantities*

The heat quantities are made up of 3 indices. These 3 indices have to be combined with the following formula for the amount of heat.

Heat amount heating = (heat amount heating 9-12 * 100000000) + (heat amount heating 5-8 * 10000) + heat amount heating 1-4

The amount of heat for "hot water" and "swimming pool" is determined according to this description. However, the corresponding data point is used here.

settings

1st heating circuit

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Unit

WPM software J / L

WPM software H

Surname

RTU

IP

RTU

IP

Min.

Max.

Parallel shift

163

5036

129

5002

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

38

 

 

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

46

21

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

15.0

30.0

° C

Fixed setpoint temperature

164

5037

130

5003

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

18th

60

° C

Heating curve end point

165

5038

142

5015

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

20th

70

° C

Hysteresis

47

22nd

unsigned 16 bit

IN

register

Divide

10

7.001

R / W

0.5

5.0

K

Hysteresis

47

22nd

unsigned 16 bit

OUT

register

Multiply

10

7.001

 

0.5

5.0

K

Target temp. dyn. cooling

170

5043

151

5024

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

10

35

° C

2nd / 3rd heating circuit

In order to be able to make changes to the 2nd or 3rd heating circuit, the changeover must take place via an address. After switching over this address, it is possible to change parameters in the desired heating circuit without any problems.

* ProgrammingNOTE
When selecting the 2nd heating circuit, the value 2 is initially sent to address 209. The required values for the 2nd heating circuit can then be changed. Analogous to the description, this is done with the 3rd heating circuit and the value 3.

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Unit

Surname

RTU

IP

Min.

Max.

Select heating circuit 2/3

209

5082

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

2

3

 

 

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

 

Heating curve end point

211

5084

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

20th

70

° C

Fixed value temperature

212

5085

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

20th

60

° C

Parallel shift

213

5086

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

38

 

 

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 runtime

214

5087

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

1

6th

Min

Mixer hysteresis

93

Unsigned 16 bit

IN

register

Divide

10

7.001

R / W

0.5

2.0

K

Mixer hysteresis

93

Unsigned 16 bit

OUT

register

Multiply

10

7.001

R / W

0.5

2.0

K

Maximum temperature

215

5088

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

30th

70

° C

Cooling set room temperature

216

5089

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

30th

 

 

0 = 15.0
1 = 15.5
2 = 16.0
3 = 16.5
4 = 17.0
5 = 17.5
6 = 18.0
7 = 18.5
8 = 19.0
9 = 19.5
10 = 20.0
11 = 20.5
12 = 21.0
13 = 21.5
14 = 22.0
15 = 22.5

16 = 23.0
17 = 23.5
18 = 24.0
19 = 24.5
20 = 25.0
21 = 25.5
22 = 26.0
23 = 26.5
24 = 27.0
25 = 27.5
26 = 28.0
27 = 28.5
28 = 29.0
29 = 29.5
30 = 30.0
 

° C

mode

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

WPM software J / L

WPM software H

Surname

RTU

IP

RTU

IP

Min.

Max.

operation mode

142

5015

134

5007

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

5

 

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

Number of party hours

143

5016

135

5008

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

72

Number of vacation days

144

5017

136

5009

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

150

ventilation

stages

161

5034

-

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

5

 

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

Time value burst ventilation

127

-

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

15th

90

NOTE
To use the ventilation function, a ventilation device of the ZL ... V (F) series with Modbus RTU connection to the heat pump manager is required.

Hot water

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Unit

WPM software J / L

WPM software H

Surname

RTU

IP

RTU

IP

Min.

Max.

Hysteresis

172

5045

131

5004

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

2

15th

K

Target temperature

174

5047

149

5022

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

Minim.

85

° C

Target temperature minimum

272

5145

-

-

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

10

Intended to.

° C

Target temperature maximum

175

5048

-

-

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

Intended to.

85

° C

swimming pool

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Unit

WPM software J / L

WPM software H

Surname

RTU

IP

RTU

IP

Min.

Max.

Hysteresis

176

5049

-

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

1

20th

K

Target temperature

178

5051

-

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

5

60

° C

2. Heat generator

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Unit

WPM software J / L

WPM software H

Surname

RTU

IP

RTU

IP

Min.

Max.

Mixer hysteresis

48

20th

unsigned 16 bit

IN

register

Divide

10

7.001

R / W

0.5

2.0

K

Mixer hysteresis

48

20th

unsigned 16 bit

OUT

register

Multiply

10

7.001

 

0.5

2.0

K

Limit temperature parallel

147

5020

19th

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

-25

35

° C

Mixer runtime

148

5021

37

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

30th

85

Min

Selection of time functions

Access to the time functions, e.g. for blocking, lowering / increasing values or times, is achieved by switching over the address 192 (Modbus IP 5065).

* ProgrammingNOTE
To change a reduction or increase value for the 1st heating circuit, the value 1 for reduction or 2 for increase is sent to address 192 (Modbus IP 5065). The required values for the 1st heating circuit can then be changed. Analogous to the description, this is done with the 2nd and 3rd heating circuit or blocks for e.g. hot water and swimming pool preparation.

Lowering / raising

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Surname

RTU

IP

Min.

Max.

1st heating circuit

Subsidence

192

5065

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

1

1

Raising

192

5065

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

2

2

2nd heating circuit

Subsidence

192

5065

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

3

3

Raising

192

5065

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

4th

4th

3rd heating circuit

Subsidence

192

5065

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

5

5

Raising

192

5065

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

6th

6th

Time function

Start hour 1

193

5066

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

Start minute 1

194

5067

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

End of hour 1

195

5068

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

End of minute 1

196

5069

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

Start hour 2

197

5070

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

Start minute 2

198

5071

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

End of lesson 2

199

5072

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

End of minute 2

200

5073

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

Sunday

201

5074

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Monday

202

5075

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Tuesday

203

5076

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Wednesday

204

5077

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Thursday

205

5078

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Friday

206

5079

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Saturday

207

5080

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

 

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

Reduction / increase value

208

5081

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

19th

Active time 1

125

Boolean

OUT

Coil

None

 

1,001

R.

0

1

Active time 2

126

Boolean

OUT

Coil

None

 

1,001

R.

0

1

Hot water lock

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Surname

RTU

IP

Min.

Max.

Hot water lock

192

5065

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

7th

7th

Time function

Start hour 1

193

5066

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

Start minute 1

194

5067

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

End of hour 1

195

5068

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

End of minute 1

196

5069

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

Start hour 2

197

5070

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

Start minute 2

198

5071

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

End of lesson 2

199

5072

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

End of minute 2

200

5073

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

Sunday

201

5074

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Monday

202

5075

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Tuesday

203

5076

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Wednesday

204

5077

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Thursday

205

5078

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Friday

206

5079

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Saturday

207

5080

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

 

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

Active time 1

125

Boolean

OUT

Coil

None

 

1,001

R.

0

1

Active time 2

126

Boolean

OUT

Coil

None

 

1,001

R.

0

1

Thermal disinfection

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Unit

Surname

RTU

IP

Min.

Max.

Thermal disinfection

192

5065

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

8th

8th

 

Time function

Start hour

193

5066

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

hour

Start minute

194

5067

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

min

Sunday

201

5074

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

1

 

Monday

202

5075

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

1

 

Tuesday

203

5076

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

1

 

Wednesday

204

5077

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

1

 

Thursday

205

5078

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

1

 

Friday

206

5079

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

1

 

Saturday

207

5080

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

1

 

 

0 = yes
1 = no

 

temperature

208

5081

unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

60

85

° C

active

125

boolean

OUT

Coil

None

 

1,001

R.

0

1

no

DHW circulation pump

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Surname

RTU

IP

Min.

Max.

Circulation pump

192

5065

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

12th

12th

Time function

Start hour 1

193

5066

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

Start minute 1

194

5067

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

End of hour 1

195

5068

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

End of minute 1

196

5069

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

Start hour 2

197

5070

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

Start minute 2

198

5071

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

End of lesson 2

199

5072

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

End of minute 2

200

5073

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

Sunday

201

5074

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Monday

202

5075

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Tuesday

203

5076

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Wednesday

204

5077

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Thursday

205

5078

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Friday

206

5079

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

Saturday

207

5080

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

3

 

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

Active time 1

125

Boolean

OUT

Coil

None

 

1,001

R.

0

1

Active time 2

126

Boolean

OUT

Coil

None

 

1,001

R.

0

1

Display ads

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Surname

WPM software L

WPM software J

WPM software H

Min.

Max.

Status reports

103

43

14th

unsigned 16 bit

OUT

register

None

 

7.001

R.

0

30th

Heat pump lock

104

59

94

unsigned 16 bit

OUT

register

None

 

7.001

R.

1

42

Fault messages

105

42

13th

unsigned 16 bit

OUT

register

None

 

7.001

R.

1

31

Sensors

106

-

-

unsigned 16 bit

OUT

register

None

 

7.001

R.

1

27

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

4th

Hot water

Heat pump One hot water

5

Cool

Heat pump One heating + 2nd heat generator

6th

 

Heat pump A swimming pool + 2nd heat generator

7th

 

Heat pump One hot water + 2nd heat generator

8th

 

Primary pump supply

9

 

Heating rinse

10

Defrost

Lock (see value for lock J software)

11th

Flow monitoring

Lower limit of use

12th

 

Low pressure limit

13th

 

Low pressure shutdown

14th

 

High pressure protection

15th

 

Switching cycle lock

16

 

Minimum service life

17th

 

Network load

18th

 

Flow monitoring

19th

 

2. Heat generator

20th

 

Low pressure brine

21

 

Heat pump on defrost

22nd

 

Upper limit of use

23

 

External lock

24

Operating mode switchover delay

Operating mode cooling

25th

 

Frost protection cold

26th

 

Lead limit

27

 

Dew point monitor

28

 

dew point

29

 

Passive cooling

30th

Lock (see value for lock L software)

 

Lock

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

4th

 

 

Rewind

5

Function control

Hot water reheating

Hot water

6th

Application limit HT

System control

System control

7th

System control

EVU lock

EVU lock

8th

Cooling switchover delay

 

 

9

Pump feed

High pressure

 

10

Minimum service life

Low pressure

 

11th

Network load

Flow

 

12th

Switching cycle lock

Soft starter

 

13th

Hot water reheating

 

 

14th

Regenerative

 

 

15th

EVU lock

 

 

16

Soft starter

 

 

17th

Flow

 

 

18th

Application limit heat pump

 

 

19th

High pressure

 

 

20th

Low pressure

 

 

21

Application limit heat source

 

 

23

System limit

 

 

24

Load primary circuit

 

 

25th

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)

 

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

4th

Error N17.4

Coding

5

 

Low pressure

6th

Electronic Ex valve

Antifreeze

7th

 

Outside sensor short circuit or break

8th

 

Return sensor short circuit or break

9

 

Hot water sensor short circuit or break

10

WPIO

Frost protection sensor short circuit or break

11th

 

2nd heating circuit sensor short circuit or break

12th

Inverter

Freeze protection sensor short circuit or break

13th

WQIF

Low pressure brine

14th

 

Motor protection primary

15th

Sensors

Flow

16

Low pressure brine

Hot water

17th

 

High pressure

19th

 ! Primary circuit

Hot gas thermostat

20th

 ! Defrost

Application limit cooling

21

 ! Low pressure brine

 

22nd

 ! Hot water

 

23

 ! Load compressor

Temperature difference

24

 ! Coding

 

25th

 ! Low pressure

 

26th

 ! Frost protection

 

28

 ! High pressure

 

29

 ! Temperature difference

 

30th

 ! Hot gas thermostat

 

31

 ! Flow

 

Sensors

Value

Description

L software

1

Outside sensor (R1)

2

Return sensor (R2)

3

Hot water sensor (R3)

4th

Coding (R7)

5

Flow sensor (R9)

6th

2nd heating circuit sensor (R5)

7th

3rd heating circuit sensor (R13)

8th

Regenerative sensor (R13)

9

Room sensor 1

10

Room sensor 2

11th

Heat source outlet sensor (R6)

12th

Heat source inlet sensor (R24) *

14th

Collector sensor (R23)

15th

Low pressure sensor (R25)

16

High pressure sensor (R26)

17th

Room humidity 1

18th

Room humidity 2

19th

Frost protection cold sensor

20th

Hot gas

21

Return sensor (R2.1)

22nd

Swimming pool sensor (R20)

23

Flow sensor cooling passive (R11)

24

Return flow sensor cooling passive (R4)

26th

Solar cylinder sensor (R22)

28

Demand sensor for heating (R2.2)

29

RTM Econ

30th

Demand sensor cooling (R39)

*NOTE
The heat source inlet is only available for heat pumps with an electronic expansion valve.

Entrances

Surname

Address

Datapoint type

Functions
code

R / W

Range

Unit

Min.

Max.

Photovoltaic feed

1

Unsigned 16 bit

0x04

R.

0

1

no

 

0 = no
1 = yes

 

Compressor (M1)

15th

Unsigned 16 bit

0x04

R.

0

1

no

Flange heating (E9)

16

Unsigned 16 bit

0x04

R.

0

1

no

Solar pump (M23)

17th

Unsigned 16 bit

0x04

R.

0

1

no

 

0 = off
1 = on

 

NOTE
The status of the input on the heat pump manager can be queried via the data point inputs. It is not possible to write to this data point!

Outputs

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Surname

WPM software J / L

WPM software H

Compressor 1

41

80

Boolean

OUT

Coil

None

 

1,001

R.

Compressor 2

42

81

Boolean

OUT

Coil

None

 

1,001

R.

Primary pump (M11) / fan (M2)

43

82

Boolean

OUT

Coil

None

 

1,001

R.

2nd heat generator (E10)

44

83

Boolean

OUT

Coil

None

 

1,001

R.

Heating pump (M13)

45

84

Boolean

OUT

Coil

None

 

1,001

R.

Hot water pump (M18)

46

85

Boolean

OUT

Coil

None

 

1,001

R.

Mixer (M21) open

47

86

Boolean

OUT

Coil

None

 

1,001

R.

Mixer (M21) CLOSED

48

87

Boolean

OUT

Coil

None

 

1,001

R.

Additional circulation pump (M16)

49

88

Boolean

OUT

Coil

None

 

1,001

R.

Flange heating (E9)

50

89

Boolean

OUT

Coil

None

 

1,001

R.

Heating pump (M15)

51

90

Boolean

OUT

Coil

None

 

1,001

R.

Mixer (M22) open

52

91

Boolean

OUT

Coil

None

 

1,001

R.

Mixer (M22) closed

53

92

Boolean

OUT

Coil

None

 

1,001

R.

Swimming pool pump (M19)

56

95

Boolean

OUT

Coil

None

 

1,001

R.

Collective fault message (H5)

57

-

Boolean

OUT

Coil

None

 

1,001

R.

Heating pump (M14)

59

94

Boolean

OUT

Coil

None

 

1,001

R.

Cooling pump (M17)

60

99

Boolean

OUT

Coil

None

 

1,001

R.

Heating pump (M20)

61

-

Boolean

OUT

Coil

None

 

1,001

R.

Changeover room thermostats heating / cooling (N9)

66

96

Boolean

OUT

Coil

None

 

1,001

R.

Primary pump cooling (M12)

68

98

Boolean

OUT

Coil

None

 

1,001

R.

Solar pump (M23)

71

-

Boolean

OUT

Coil

None

 

1,001

R.

NOTE
In the event of a change, the status of the output is sent by the heat pump manager via the data points outputs. It is not possible to write to this data point!

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.

 

KNX / EIB

 

Modbus

 

Modbus

 

Address

Datapoint type

IN / OUT

COIL / REG

Conversion Rule

Conversion Value

DPT

R / W

Range

Surname

RTU

IP

Min.

Max.

hour

133

5006

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

23

set hour

102

Boolean

IN

Coil

None

 

1,001

W.

 

minute

134

5007

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

59

set minute

103

Boolean

IN

Coil

None

 

1,001

W.

 

month

135

5008

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

1

12th

set month

105

Boolean

IN

Coil

None

 

1,001

W.

 

weekday

136

5009

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

1

7th

 

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

set day of the week

107

Boolean

IN

Coil

None

 

1,001

W.

 

Day

137

5010

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

1

31

set day

104

Boolean

IN

Coil

None

 

1,001

W.

 

year

138

5011

Unsigned 16 bit

IN / OUT

register

None

 

7.001

R / W

0

99

set year

106

Boolean

IN

Coil

None

 

1,001

W.

 

*NOTE
A time comparison is only possible from software versions J / L.

Function descriptions

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

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.

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

*NOTE
The maximum hot water temperature can be limited by the stored "maximum possible hot water temperature"!

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

NOTE
From WPM software L20.2 it is possible to write to this data point in order to be able to trigger a corresponding action via the interface!

Contact

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

ferndiagnose@gdts.one

with the additional information of:

  • Device designation

  • Software version