Strange values in chart

Add-ons Persistence Services
1

I just installed RRD4J to get historical data on the charts I use for representing values of my temperature sensors.

If I look in the Karaf logging, I see normal values;

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But when I look to the chart lines and the values on the left side of the chart, the values doesn’t seems to make any sense;

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rrd4j.cfg;

gTempCharts.def=GAUGE,120,10,40,60
gTempCharts.archives=AVERAGE,0.5,1,365:AVERAGE,0.5,7,300
gTempCharts.items=OWTemp1,OWTemp2,OWTemp3,OWTemp4,OWTemp5,OWTemp6,OWTemp7

Items;

Number OWTemp1 "Temperature1 [%.1f °C]" (gTempCharts) { onewire="deviceId=10.4C29F9020800;propertyName=temperature;refreshinterval=10" }
Number OWTemp2 "Temperature2 [%.1f °C]" (gTempCharts) { onewire="deviceId=10.EBEDF8020800;propertyName=temperature;refreshinterval=10" }
Number OWTemp3 "Temperature3 [%.1f °C]" (gTempCharts) { onewire="deviceId=28.FFE203021703;propertyName=temperature;refreshinterval=10" }
Number OWTemp4 "Temperature4 [%.1f °C]" (gTempCharts) { onewire="deviceId=28.FF9ACFC41604;propertyName=temperature;refreshinterval=10" }
Number OWTemp5 "Temperature5 [%.1f °C]" (gTempCharts) { onewire="deviceId=28.FF7ACCC21603;propertyName=temperature;refreshinterval=10" }
Number OWTemp6 "Temperature6 [%.1f °C]" (gTempCharts) { onewire="deviceId=28.FF2DD0C21603;propertyName=temperature;refreshinterval=10" }
Number OWTemp7 "Temperature7 [%.1f °C]" (gTempCharts) { onewire="deviceId=28.FFCBDDC41604;propertyName=temperature;refreshinterval=10" }

rrd4j.persist;

Strategies {
    // for rrd charts, we need a cron strategy, every Minute is a must have.
    everyMinute : "0 * * * * ?"
    // get the data reduced for older values to keep database small
    everyHour : "0 0 * * * ?"
    everyDay : "0 0 0 * * ?"
    
    default = everyChange
}

Items {
    // additionally persist Items
    OWTemp1 : strategy = everyUpdate, everyMinute
    OWTemp2 : strategy = everyUpdate, everyMinute
    OWTemp3 : strategy = everyUpdate, everyMinute
    OWTemp4 : strategy = everyUpdate, everyMinute
    OWTemp5 : strategy = everyUpdate, everyMinute
    OWTemp6 : strategy = everyUpdate, everyMinute
    OWTemp7 : strategy = everyUpdate, everyMinute
}

Does anybody know what can be wrong?

2

Same Problem here!

I have a Gira Tastsensor 3 komfort. With other temperatures from a 1wire sensor or a DHT22 sensor, the charts looks what they are schould like.

Is there nobody, who can help us?

3

After a reinstall of the OH software (because of migration to other hardware) the problem was solved in my situation.

4

As long as the temp values are used as numbers a persistence service running with other values should persist and display them as well.
So what is the difference between the temperature values from your Gira Sensor and the other sensors?

5

Hello everyone,

I have to pick up on this topic again, as I now have the same problem as Jaco described in his first post -> but,
Now I have it after updating OH to the latest version.

I also save my temperature with rrd4j and before my update to the latest RC it works fine.
Now I have the same strange values ​​in the y-axis.

I already quit OH and deleted the persistence file (was a hint from another thread here),
but unfortunately it did not solve my problem.

Does anyone have an idea what I can try?

Regards,
Lars