The PPS monitor is a Python script that will monitor a PPS (Punkt-zu-Punkt Schnittstelle) or H-Bus heating automation network link using a Raspberry Pi. The script can output individual messages, or it can produce a CSV log of all 11 monitored values. It can also act as a Netdata plugin. The hardware required for hooking up to the PPS link can be found here. It has been tested with a Siemens RVP-210 heating controller and a QAW-70 room unit.
The program will monitor the following values.
- Set default room temperature
- Set absent room temperature
- Set domestic hot water (DHW) temperature
- Set room temperature
- Actual room temperature
- Outside temperature
- Actual flow temperature
- Actual DHW temperature
- Authority
- Mode
- Present
- Remaining absence days
usage: ppsmon.py [-h] [-c] [-H] [-n NMESSAGE] [-N] [-o OUTPUT] [-p PORT] [-u]
PPS monitoring program
optional arguments:
-h, --help show this help message and exit
-c, --csv Output CSV records
-H, --header Print CSV header
-n NMESSAGE, --nmessage NMESSAGE
Number of messages to process (default: infinite)
-N, --netdata Act as a netdata external plugin
-o OUTPUT, --output OUTPUT
Specify CSV output file (default: stdout)
-p PORT, --port PORT Serial port to access (default: /dev/serial0)
-u, --unknown Show unknown telegrams
$ sudo ./ppsmon.py -n 10
Room unit: Actual room temp: 21.7
Controller: Actual flow temp: 22.1
Room unit: Set room temp: 19.0
Controller: Authority: remote
Room unit: Mode: timed
$ sudo ./ppsio.py -n 150 -cH
time,Actual DHW temp,Actual flow temp,Actual room temp,Authority,Mode,Outside temp,Present,Set DHW temp,Set absent room temp,Set default room temp,Set room temp
1526237678,54.7,22.2,21.8,remote,timed,18.3,true,40.0,15.0,20.0,19.0
1526237698,54.6,22.2,21.8,remote,timed,18.3,true,40.0,15.0,20.0,19.0
1526237718,54.5,22.2,21.8,remote,timed,18.3,true,40.0,15.0,20.0,19.0
1526237738,54.7,22.2,21.8,remote,timed,18.3,true,40.0,15.0,20.0,19.0
1526237758,54.5,22.2,21.8,remote,timed,18.3,true,40.0,15.0,20.0,19.0
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