Waterkotte heat pump with Resümat CD4

WKRCD4
Zweck / Funktion
Control / Extract information from Waterkotte Heat pumps with Resümat CD4 controller
Allgemein
Typ	Contrib
Details
Dokumentation	Thema
Support (Forum)	Sonstiges
Modulname	98_WKRCD4.pm
Ersteller	StefanStrobel (Forum / Wiki)
Wichtig: sofern vorhanden, gilt im Zweifel immer die (englische) Beschreibung in der commandref!

WKRCD4 allows to control / communicate with older heat pumps from Waterkotte that have a control unit called Resümat CD4 with an RS232 serial interface. Newer heat pumps from Waterkotte typically have a modbus interface that can be controlled with module ModbusAttr.

Availability

The module has been checked in to the contrib area.

Prerequisites

This module requires Device::SerialPort or Win32::SerialPort module.

Define

define <name> WKRCD4 <devicename@speed> <Interval>

The module connects to the heat pump through a serial interface and actively requests data from the heat pump every <Interval> seconds

Example:

define WP WKRCD4 /dev/dualser0@9600 60
attr WP stateFormat Status
attr WP event-min-interval .*:3600
attr WP event-on-change-reading .*

Configuration of the module

Apart from the serial interface and the interval there is nothing that needs to be defined.

Get-Commands

There are only two parameters for which an explicit GET has been implemented. Most values are just readings that are automatically requested:

Hzg-TempBasisSoll
WW-Temp-Soll

Set-Commands

There is only one parameter that can be changed:

Hzg-TempBasisSoll

Supported readings

The module extracts the following readings from the heat pump:

Versions-Nummer       
Temp-Aussen           
Temp-Ruecklauf-Soll   
Temp-Ruecklauf        
Temp-Vorlauf          
Temp-WW-Soll          
Temp-WW               
Temp-Raum             
Temp-WQuelle-Ein      
Temp-WQuelle-Aus      
Temp-Verdampfer       
Temp-Kondensator      
Temp-Saugleitung      
Druck-Verdampfer      
Druck-Kondensator     
Hzg-TempEinsatz       
Hzg-TempBasisSoll     
Hzg-KlSteilheit       
Hzg-KlBegrenz         
Hzg-TempRlSoll        
Hzg-TempRlIst         
Hzg-TmpRaumSoll       
Hzg-RaumEinfluss      
Hzg-ExtAnhebung       
Hzg-Zeit-Ein          
Hzg-Zeit-Aus          
Hzg-AnhebungEin       
Hzg-AnhebungAus       
Hzg-St2Begrenz        
Hzg-Hysterese         
Hzg-PumpenNachl       
Klg-Abschaltung       
Klg-Temp-Einsatz      
Klg-TeBasisSoll       
Klg-KlSteilheit       
Klg-KlBegrenz         
Klg-KlSollwert        
Klg-Temp-Rl           
Ww-Abschaltung        
Ww-Zeit-Ein           
Ww-Zeit-Aus           
Ww-Temp-Ist           
Ww-Temp-Soll          
Ww-Hysterese          
Uhrzeit               
Datum                 
BetrStundenKompressor 
BetrStundenHzgPu      
BetrStundenWwPu       
BetrStundenSt2        
Zeit                  
SetBetriebsMode       
Display-Zeile-1       
Display-Zeile-2       
Status-Gesamt         
Status-Heizung        
Status-Kuehlung       
Mode-Heizung          
Mode-Kuehlung         
Mode-Warmwasser       
Heizung               
Kuehlung              
Warmwasser  

Attributes

do_not_notify

...

readingFnAttributes

...