Meter

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Meter
Interface: i.xbos.meter
Description: Standard XBOS electric meter interface
PONUM: 2.1.1.4
Properties
Name
Type
Description
Units
Required
apparent_power
double
Current apparent power reading
kVA
false
power
double
Current measured power
kW
true
time
integer
nanoseconds since the Unix epoch
ns
true
voltage
double
Current voltage reading
V
false
Signals
info:
power
voltage
apparent_power
time
Slots
Interfacing in Go
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package main
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​
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import (
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    "fmt"
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    bw2 "gopkg.in/immesys/bw2bind.v5"
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)
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​
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func main() {
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    client := bw2.ConnectOrExit("")
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    client.OverrideAutoChainTo(true)
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    client.SetEntityFromEnvironOrExit()
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​
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    base_uri := "Meter uri goes here ending in i.xbos.meter"
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​
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    // subscribe
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    type signal struct {
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        Power          float64 `msgpack:"power"`
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        Voltage        float64 `msgpack:"voltage"`
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        Apparent_power float64 `msgpack:"apparent_power"`
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        Time           int64   `msgpack:"time"`
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    }
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    c, err := client.Subscribe(&bw2.SubscribeParams{
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        URI: base_uri + "/signal/info",
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    })
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    if err != nil {
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        panic(err)
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    }
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​
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    for msg := range c {
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        var current_state signal
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        po := msg.GetOnePODF("2.1.1.4/32")
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        err := po.(bw2.MsgPackPayloadObject).ValueInto(&current_state)
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        if err != nil {
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            fmt.Println(err)
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        } else {
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            fmt.Println(current_state)
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        }
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    }
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}
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Interfacing in Python
1
import time
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import msgpack
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​
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from bw2python.bwtypes import PayloadObject
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from bw2python.client import Client
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​
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bw_client = Client()
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bw_client.setEntityFromEnviron()
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bw_client.overrideAutoChainTo(True)
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​
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def onMessage(bw_message):
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  for po in bw_message.payload_objects:
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    if po.type_dotted == (2,1,1,4):
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      print msgpack.unpackb(po.content)
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​
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bw_client.subscribe("Meter uri ending in i.xbos.meter/signal/info", onMessage)
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​
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print "Subscribing. Ctrl-C to quit."
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while True:
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  time.sleep(10000)
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Plug
PV Meter
Last modified 1yr ago
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Contents
Interfacing in Python