Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- hardware:channels:meters:power:edl-ehz:iskraemeco_mt171 [2016/10/17 17:58] – Vereinheitlicht jau
+++ hardware:channels:meters:power:edl-ehz:iskraemeco_mt171 [2022/04/21 21:50] (aktuell) – daemon, logfile & port jau
@@ Zeile 1: / Zeile 1: @@
-====== IskraEmeco MT171 ======
+====== Iskraemeco MT171 ======
 {{ :hardware:channels:meters:power:iskra:iskra0.jpg?100}}
-Der [[http://www.iskraemeco.si/emecoweb/ger/products/mt171.html|IskraEmeco MT171]] kann nach EN 62056-21 über die IR-Schnittstelle ausgelesen werden.\\
+Der Iskraemeco MT171 kann nach EN 62056-21 über die IR-Schnittstelle ausgelesen werden.\\
 ===== Hardware =====
 ==== D0 - EN 62056-21 ====
@@ Zeile 20: / Zeile 20: @@
 /?!\r\n (hex 2F 3F 21 0D 0A)
 </code>
-Der Zähler antwortet mit
+Der Zähler antwortet z.B. mit
 <code>
 /ISk5MT171-0222
@@ Zeile 38: / Zeile 38: @@
 !
 </code>
-Leider keine Momentanwerte oder zusätzliche Infos.\\
-Ob und wie man an zusätzliche Messwerte gelangt, ist bisher nicht bekannt.\\
-===== Auslesen per Python-Script =====
+Die Baudrate läßt sich auch auf 9600 Baud umstellen wenn man innerhalb von 2s nachdem der Zähler seine Identifikation geschickt hat, ein Acknowledge Paket (ACK050CRLF) schickt.
-See here python code that reads the meter data about every 5 seconds and writes a line to file if the meter data has changed. It uses py-serial.
+<code>(hex 06 30 35 30 0D 0A)</code>
-<code>from __future__ import print_function
+Worauf der Zähler beginnt seine [[hardware:channels:meters:power:edl-ehz:iskraemeco_mt174#beispieldaten|Daten]] mit 9600 Baud auszugeben.\\
-import serial
-import time
-### python 2
+===== Beispiel vzlogger.conf =====
-def send(port, bytes, tr):
+Im Frontend wird ein Kanal 'El.Energie (Zählerstände)' angelegt. Als Auflösung wird '1' eingetragen. Der Style sollte 'steps' sein. Ein Haken bei 'Öffentlich' und bei 'Cookie' machen. Weiter sollte der 'Initialverbrauch' (aktueller Zählerstand) eingetragen werden. Die UUIDs werden automatisch erzeugt und können durch klicken auf das (i) rechts neben dem Kanal sichtbar gemacht werden. Wenn alles funktioniert, kann 'verbosity' in der vzlogger.conf auf 0 gesetzt werden.
-  """ sends an command to serial and reads and checks the echo
-      port  - the open serial port
-      bytes - the string to be send
-      tr    - the responce time
-  """
-  #print("start send")
-  port.write(bytes)
-  time.sleep(tr)
-  ####  if there is no echo remove next 3 lines
-  echo = port.read(len(bytes))
-  if (echo != bytes):
-    print("echo is not same as send:", bytes, " vs ", echo)
-  #print("end send")
-def read_datablock():
+<code base vzlogger.conf>
-  ACK = '\x06'
+{
-  STX = '\x02'
+  "retry": 0,
-  ETX = '\x03'
+  "verbosity": 15,
-  tr = 0.2
+  "log": "/var/log/vzlogger/vzlogger.log",
-  """ does all that's needed to get meter data from the meter device """
+  "local": {
-  try:
+    "enabled": false,
-    IskraMT171=serial.Serial(port='/dev/ttyUSB0', baudrate=300, bytesize=7, parity='E', stopbits=1, timeout=1.5); # open port at specified speed
+    "port": 8081,
-    # 1 ->
+    "index": true,
-    time.sleep(tr)
+    "timeout": 0,
-    Request_message='/?!\r\n' # IEC 62056-21:2002(E) 6.3.1
+    "buffer": 0
-    send(IskraMT171, Request_message, tr)
+  },
-    # 2 <-
+  "meters": [
-    time.sleep(tr)
+    {
-    Identification_message=IskraMT171.readline() # IEC 62056-21:2002(E) 6.3.2
+      "enabled": true,
-    if (len(Identification_message) < 1 or Identification_message[0] != '/'):
+      "allowskip": false,
-      print("no Identification message")
+      "interval": -1,
-      IskraMT171.close()
+      "aggtime": -1,
-      return ""
+      "aggfixedinterval": false,
-    if (len(Identification_message) < 7):
+      "channels": [
-      print("Identification message to short")
+        {
-      IskraMT171.close()
+          "uuid": "hier die UUID des im Frontend angelegten Kanals (El. Energie (Zählerstand) ) einfügen",
-      return ""
+          "identifier": "1.8.0",
-    if (Identification_message[4].islower()):
+          "api": "volkszaehler",
-      tr = 0.02
+          "middleware": "http://localhost/middleware.php",
-    manufacturers_ID = Identification_message[1:4]
+          "aggmode": "none",
-    if (Identification_message[5] == '\\'):
+          "duplicates": 0
-      identification = Identification_message[7:-2]
+        }
-    else:
+      ],
-      identification = Identification_message[5:-2]
+      "protocol": "d0",
-    speed = Identification_message[4]
+      "device": "/dev/ttyUSB0",
-    #print("speed = ", speed)
+      "pullseq": "2F3F210D0A",
-    if (speed == "1"): new_baud_rate = 600
+      "ackseq": "063035300d0a",
-    elif (speed == "2"): new_baud_rate = 1200
+      "baudrate": 300,
-    elif (speed == "3"): new_baud_rate = 2400
+      "baudrate_read": 9600,
-    elif (speed == "4"): new_baud_rate = 4800
+      "parity": "7e1",
-    elif (speed == "5"): new_baud_rate = 9600
+      "wait_sync": "off",
-    elif (speed == "6"): new_baud_rate = 19200
+      "read_timeout": 10,
-    else:
+      "baudrate_change_delay": 0
-      new_baud_rate = 300
+    }
-      speed = "0"
+  ]
-    #print(manufacturers_ID, " ", identification, " speed=", speed)
+}
-    # 3 ->
-    Acknowledgement_message=ACK + '0' + speed + '0\r\n' # IEC 62056-21:2002(E) 6.3.3
-    send(IskraMT171, Acknowledgement_message, tr)
-    IskraMT171.baudrate=new_baud_rate
-    time.sleep(tr)
-    # 4 <-
-    datablock = ""
-    if (IskraMT171.read() == STX):
-      x = IskraMT171.read()
-      BCC = 0
-      while (x  != '!'):
-        BCC = BCC ^ ord(x)
-        datablock = datablock + x
-        x = IskraMT171.read()
-      while (x  != ETX):
-        BCC = BCC ^ ord(x) # ETX itself is part of block check
-        x = IskraMT171.read()
-      BCC = BCC ^ ord(x)
-      x = IskraMT171.read() # x is now the Block Check Character
-      # last character is read, could close connection here
-      if (BCC != ord(x)): # received correctly?
-        datablock = ""
-        print("Result not OK, try again")
-    else:
-      print("No STX found, not handled.")
-    IskraMT171.close()
-    return datablock
-  except:
-    print("Some error reading data")
-    if (IskraMT171.isOpen()):
-      IskraMT171.close()
-    return ""
-def meter_data(datablock, map, header):
-  """ takes a datablock as received from the meter and returns a list with requested meter data as set in map
-      if header != 0 a list with data type and units is returned """
-  line = []
-  ## initialise line
-  for l in range(len(map)):
-    if (header == 1):
-      line.append(map[l][1])
-    elif (map[l][0] == "time"):
-      line.append(time.strftime("%Y-%m-%d %H:%M:%S"))
-    else:
-      line.append("")
-  datasets = datablock.split('\n')
-  for dataset in datasets:
-    if (dataset != ""):
-      x = dataset.split('(')
-      address = x[0]
-      x = x[1][:-2].split(' ') # the standard seems to have a '*' instead of ' ' here
-      value = x[0]
-      try:
-        unit = '['+x[1]+']'
-      except:
-        unit = ""
-      for l in range(len(map)):
-        if (map[l][0] == address):
-          if (header == 0):
-            line[l] = value
-          else:
-            line[l] = map[l][1] + unit
-          break;
-  return line
-def output(filename, line):
-  f = open(filename, "a")
-  print(line, file=f)
-  f.close()
-map = [
-  # The structure of the meter_data() output can be set with this variable
-  # first string on each line is the cosim adress of the data you want to safe or "time" to insert the time
-  # the second string on each line is a description of the type of data belonging to the cosim address
-  # the order of the lines sets the order of the meter_data() output
-  # example
-  # header: ['meter ID', 'datum & tijd', 'verbruik totaal[kWh]', 'verbruik tarief1[kWh]', 'verbruik tarief2[kWh]', 'terug totaal[kWh]', 'terug tarief1[kWh]', 'terug tarief2[kWh]']
-  # data: ['12345678', '2013-02-08 10:08:41', '0054321', '0000000', '0054321', '0000000', '0000000', '0000000']
-  ["1-0:0.0.0*255", "meter ID"],
-  ["time", "datum & tijd"],
-  ["1-0:1.8.0*255", "verbruik totaal"],
-  ["1-0:1.8.1*255", "verbruik tarief1"],
-  ["1-0:1.8.2*255", "verbruik tarief2"],
-  ["1-0:2.8.0*255", "terug totaal"],
-  ["1-0:2.8.1*255", "terug tarief1"],
-  ["1-0:2.8.2*255", "terug tarief2"]
-]
-example_datablock = """0-0:C.1.0*255(12345678)
--0:0.0.0*255(12345678)
--0:0.2.0*255(V1.0)
--0:1.8.0*255(0054321 kWh)
--0:1.8.1*255(0000000 kWh)
--0:1.8.2*255(0054321 kWh)
--0:2.8.0*255(0000000 kWh)
--0:2.8.1*255(0000000 kWh)
--0:2.8.2*255(0000000 kWh)
-FF(00000000)
-"""
-#print(meter_data(example_datablock , map, 1))
-#print(meter_data(example_datablock , map, 0))
-file = "meterdata.txt"
-previous_data = ""
-data = read_datablock()
-output(file, meter_data(data , map, 1)) # header
-while (1):
-  if (data == ""):
-    print(time.strftime("%Y-%m-%d %H:%M:%S"), "No data received")
-  elif (previous_data != data):
-    output(file, meter_data(data , map, 0))
-    previous_data = data
-  time.sleep(3) # minimum waiting time is 3 seconds, less and the meter doesn't return data
-  data = read_datablock()
 </code>
-Example output is:
-<code>['meter ID', 'datum & tijd', 'verbruik totaal[kWh]', 'verbruik tarief1[kWh]', 'verbruik tarief2[kWh]', 'terug totaal[kWh]', 'terug tarief1[kWh]', 'terug tarief2[kWh]']
-['12345678', '2013-02-09 12:49:14', '0011540', '0000000', '0011540', '0000000', '0000000', '0000000']
-['12345678', '2013-02-09 13:00:45', '0011541', '0000000', '0011541', '0000000', '0000000', '0000000']
-['12345678', '2013-02-09 13:18:06', '0011542', '0000000', '0011542', '0000000', '0000000', '0000000']
-['12345678', '2013-02-09 13:40:14', '0011543', '0000000', '0011543', '0000000', '0000000', '0000000']
-['12345678', '2013-02-09 13:57:53', '0011544', '0000000', '0011544', '0000000', '0000000', '0000000']
-['12345678', '2013-02-09 14:15:16', '0011545', '0000000', '0011545', '0000000', '0000000', '0000000']
-['12345678', '2013-02-09 14:53:29', '0011546', '0000000', '0011546', '0000000', '0000000', '0000000']
-</code>
-Only change <code>map</code> in order to change header names, to add or remove what data is saved or to change the order.
 ===== Quellen =====
 [1] [[http://www.iskraemeco.si/emecoweb/ger/products/mt171.html|MT171]]\\