Skip to content

Instantly share code, notes, and snippets.

@Mausy5043

Mausy5043/kamstrup_warmte.sh

Created October 15, 2022 08:38
Show Gist options
  • Save Mausy5043/af9c37e56d2cdf3d0b2df35e29bad449 to your computer and use it in GitHub Desktop.
Save Mausy5043/af9c37e56d2cdf3d0b2df35e29bad449 to your computer and use it in GitHub Desktop.
Download ZIP
KAMSTRUP warmtemeters
Raw
kamstrup_warmte.sh
#!/bin/bash
# filenames to be corrected for your specific application
# Temp2 [87] [68]
python3 /home/pi/domoticz/scripts/python/kamstrup403.py /dev/ttyUSB-IR 87 68
# Heat Energy (verbruik) [60] [65]
python3 /home/pi/domoticz/scripts/python/kamstrup403.py /dev/ttyUSB-IR 60 65
# Volume (m3) [68] [66]
python3 /home/pi/domoticz/scripts/python/kamstrup403.py /dev/ttyUSB-IR 68 66
# Current Temp1 (forward) [86] [67]
python3 /home/pi/domoticz/scripts/python/kamstrup403.py /dev/ttyUSB-IR 86 67
Raw
kamstrup_warmte_402.py
#!/usr/bin/python
#
# ----------------------------------------------------------------------------
# "THE BEER-WARE LICENSE" (Revision 42):
# <[email protected]> wrote this file. As long as you retain this notice you
# can do whatever you want with this stuff. If we meet some day, and you think
# this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
# ----------------------------------------------------------------------------
#
# Modified for Domotics and single request.
#
# Modified by Frank Reijn and Paul Bonnemaijers for Kamstrup Multical 402
#
# Usage: __file__ <ComPort> <KMP_Command_Decimal> <Domoticz_IDX>
#
from __future__ import print_function
# You need pySerial
import serial
import math
import sys
import datetime
import json
import urllib
import urllib.request
# Variables
# domoip = "192.168.2.253"
# domoport = "8080"
kamstrup_402_var = { # Decimal Number in Command
0x003C: "Heat Energy (E1)", #60
0x0050: "Power", #80
0x0056: "Temp1", #86
0x0057: "Temp2", #87
0x0059: "Tempdiff", #89
0x004A: "Flow", #74
0x0044: "Volume", #68
0x008D: "MinFlow_M", #141
0x008B: "MaxFlow_M", #139
0x008C: "MinFlowDate_M", #140
0x008A: "MaxFlowDate_M", #138
0x0091: "MinPower_M", #145
0x008F: "MaxPower_M", #143
0x0095: "AvgTemp1_M", #149
0x0096: "AvgTemp2_M", #150
0x0090: "MinPowerDate_M", #144
0x008E: "MaxPowerDate_M", #142
0x007E: "MinFlow_Y", #126
0x007C: "MaxFlow_Y", #124
0x007D: "MinFlowDate_Y", #125
0x007B: "MaxFlowDate_Y", #123
0x0082: "MinPower_Y", #130
0x0080: "MaxPower_Y", #128
0x0092: "AvgTemp1_Y", #146
0x0093: "AvgTemp2_Y", #147
0x0081: "MinPowerDate_Y", #129
0x007F: "MaxPowerDate_Y", #127
0x0061: "Temp1xm3", #97
0x006E: "Temp2xm3", #110
0x0071: "Infoevent", #113
0x03EC: "HourCounter", #1004
}
#######################################################################
# Units, provided by Erik Jensen
units = {
0: '', 1: 'Wh', 2: 'kWh', 3: 'MWh', 4: 'GWh', 5: 'j', 6: 'kj', 7: 'Mj',
8: 'Gj', 9: 'Cal', 10: 'kCal', 11: 'Mcal', 12: 'Gcal', 13: 'varh',
14: 'kvarh', 15: 'Mvarh', 16: 'Gvarh', 17: 'VAh', 18: 'kVAh',
19: 'MVAh', 20: 'GVAh', 21: 'kW', 22: 'kW', 23: 'MW', 24: 'GW',
25: 'kvar', 26: 'kvar', 27: 'Mvar', 28: 'Gvar', 29: 'VA', 30: 'kVA',
31: 'MVA', 32: 'GVA', 33: 'V', 34: 'A', 35: 'kV',36: 'kA', 37: 'C',
38: 'K', 39: 'l', 40: 'm3', 41: 'l/h', 42: 'm3/h', 43: 'm3xC',
44: 'ton', 45: 'ton/h', 46: 'h', 47: 'hh:mm:ss', 48: 'yy:mm:dd',
49: 'yyyy:mm:dd', 50: 'mm:dd', 51: '', 52: 'bar', 53: 'RTC',
54: 'ASCII', 55: 'm3 x 10', 56: 'ton x 10', 57: 'GJ x 10',
58: 'minutes', 59: 'Bitfield', 60: 's', 61: 'ms', 62: 'days',
63: 'RTC-Q', 64: 'Datetime'
}
#######################################################################
# Kamstrup uses the "true" CCITT CRC-16
#
def crc_1021(message):
poly = 0x1021
reg = 0x0000
for byte in message:
mask = 0x80
while(mask > 0):
reg<<=1
if byte & mask:
reg |= 1
mask>>=1
if reg & 0x10000:
reg &= 0xffff
reg ^= poly
return reg
#######################################################################
# Byte values which must be escaped before transmission
#
escapes = {
0x06: True,
0x0d: True,
0x1b: True,
0x40: True,
0x80: True,
}
#######################################################################
# And here we go....
#
class kamstrup(object):
def __init__(self, serial_port):
self.debug_fd = open("/tmp/_kamstrup", "a")
self.debug_fd.write("\n\nStart\n")
self.debug_id = None
self.ser = serial.Serial(
port = serial_port,
baudrate = 1200,
timeout = 2.0)
def debug(self, dir, b):
for i in b:
if dir != self.debug_id:
if self.debug_id != None:
self.debug_fd.write("\n")
self.debug_fd.write(dir + "\t")
self.debug_id = dir
self.debug_fd.write(" %02x " % i)
self.debug_fd.flush()
def debug_msg(self, msg):
if self.debug_id != None:
self.debug_fd.write("\n")
self.debug_id = "Msg"
self.debug_fd.write("Msg\t" + msg)
self.debug_fd.flush()
def wr(self, b):
b = bytearray(b)
self.debug("Wr", b);
self.ser.write(b)
def rd(self):
a = self.ser.read(1)
if len(a) == 0:
self.debug_msg("Rx Timeout")
return None
b = bytearray(a)[0]
self.debug("Rd", bytearray((b,)));
return b
def send(self, pfx, msg):
b = bytearray(msg)
b.append(0)
b.append(0)
c = crc_1021(b)
b[-2] = c >> 8
b[-1] = c & 0xff
c = bytearray()
c.append(pfx)
for i in b:
if i in escapes:
c.append(0x1b)
c.append(i ^ 0xff)
else:
c.append(i)
c.append(0x0d)
self.wr(c)
def recv(self):
b = bytearray()
while True:
d = self.rd()
if d == None:
return None
if d == 0x40:
b = bytearray()
b.append(d)
if d == 0x0d:
break
c = bytearray()
i = 1;
while i < len(b) - 1:
if b[i] == 0x1b:
v = b[i + 1] ^ 0xff
if v not in escapes:
self.debug_msg(
"Missing Escape %02x" % v)
c.append(v)
i += 2
else:
c.append(b[i])
i += 1
if crc_1021(c):
self.debug_msg("CRC error")
return c[:-2]
def readvar(self, nbr):
# I wouldn't be surprised if you can ask for more than
# one variable at the time, given that the length is
# encoded in the response. Havn't tried.
self.send(0x80, (0x3f, 0x10, 0x01, nbr >> 8, nbr & 0xff))
b = self.recv()
if b == None:
return (None, None)
if b[0] != 0x3f or b[1] != 0x10:
return (None, None)
if b[2] != nbr >> 8 or b[3] != nbr & 0xff:
return (None, None)
if b[4] in units:
u = units[b[4]]
else:
u = None
# Decode the mantissa
x = 0
for i in range(0,b[5]):
x <<= 8
x |= b[i + 7]
# Decode the exponent
i = b[6] & 0x3f
if b[6] & 0x40:
i = -i
i = math.pow(10,i)
if b[6] & 0x80:
i = -i
x *= i
if False:
# Debug print
s = ""
for i in b[:4]:
s += " %02x" % i
s += " |"
for i in b[4:7]:
s += " %02x" % i
s += " |"
for i in b[7:]:
s += " %02x" % i
print(s, "=", x, units[b[4]])
return (x, u)
if __name__ == "__main__":
import time
comport = sys.argv[1]
command = int( sys.argv[2], 0)
index = int( sys.argv[3], 0)
foo = kamstrup( comport )
heat_timestamp=datetime.datetime.strftime(datetime.datetime.today(), "%Y-%m-%d %H:%M:%S" )
value,unit = foo.readvar( command )
requestPost = urllib.request.urlopen( "http://192.168.2.253:8080/json.htm?type=command&param=udevice&idx=" + str(index) + "&svalue=" + str(value) )
Raw
kamstrup_warmte_602.py
#!/usr/bin/python
#
# ----------------------------------------------------------------------------
# "THE BEER-WARE LICENSE" (Revision 42):
# <[email protected]> wrote this file. As long as you retain this notice you
# can do whatever you want with this stuff. If we meet some day, and you think
# this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
# ----------------------------------------------------------------------------
#
# Modified for Domotics and single request.
#
# Usage: __file__ <ComPort> <KMP_Command_Decimal> <Domoticz_IDX>
# kamstrup.py /dev/ttyUSB-IR 60 65
from __future__ import print_function
# You need pySerial
import serial
import math
import sys
import json
import urllib2
kamstrup_601_var = {
0x003C: "Verwarming verbruik",
0x0054: "Warm waterverbruik",
}
#######################################################################
# Units, provided by Erik Jensen
units = {
0: '', 1: 'Wh', 2: 'kWh', 3: 'MWh', 4: 'GWh', 5: 'j', 6: 'kj', 7: 'Mj',
8: 'Gj', 9: 'Cal', 10: 'kCal', 11: 'Mcal', 12: 'Gcal', 13: 'varh',
14: 'kvarh', 15: 'Mvarh', 16: 'Gvarh', 17: 'VAh', 18: 'kVAh',
19: 'MVAh', 20: 'GVAh', 21: 'kW', 22: 'kW', 23: 'MW', 24: 'GW',
25: 'kvar', 26: 'kvar', 27: 'Mvar', 28: 'Gvar', 29: 'VA', 30: 'kVA',
31: 'MVA', 32: 'GVA', 33: 'V', 34: 'A', 35: 'kV',36: 'kA', 37: 'C',
38: 'K', 39: 'l', 40: 'm3', 41: 'l/h', 42: 'm3/h', 43: 'm3xC',
44: 'ton', 45: 'ton/h', 46: 'h', 47: 'hh:mm:ss', 48: 'yy:mm:dd',
49: 'yyyy:mm:dd', 50: 'mm:dd', 51: '', 52: 'bar', 53: 'RTC',
54: 'ASCII', 55: 'm3 x 10', 56: 'ton x 10', 57: 'GJ x 10',
58: 'minutes', 59: 'Bitfield', 60: 's', 61: 'ms', 62: 'days',
63: 'RTC-Q', 64: 'Datetime'
}
#######################################################################
# Kamstrup uses the "true" CCITT CRC-16
#
def crc_1021(message):
poly = 0x1021
reg = 0x0000
for byte in message:
mask = 0x80
while(mask > 0):
reg<<=1
if byte & mask:
reg |= 1
mask>>=1
if reg & 0x10000:
reg &= 0xffff
reg ^= poly
return reg
#######################################################################
# Byte values which must be escaped before transmission
#
escapes = {
0x06: True,
0x0d: True,
0x1b: True,
0x40: True,
0x80: True,
}
#######################################################################
# And here we go....
#
class kamstrup(object):
def __init__(self, serial_port):
self.debug_fd = open("/tmp/_kamstrup", "a")
self.debug_fd.write("\n\nStart\n")
self.debug_id = None
self.ser = serial.Serial(
port = serial_port,
baudrate = 1200,
timeout = 2.0)
def debug(self, dir, b):
for i in b:
if dir != self.debug_id:
if self.debug_id != None:
self.debug_fd.write("\n")
self.debug_fd.write(dir + "\t")
self.debug_id = dir
self.debug_fd.write(" %02x " % i)
self.debug_fd.flush()
def debug_msg(self, msg):
if self.debug_id != None:
self.debug_fd.write("\n")
self.debug_id = "Msg"
self.debug_fd.write("Msg\t" + msg)
self.debug_fd.flush()
def wr(self, b):
b = bytearray(b)
self.debug("Wr", b);
self.ser.write(b)
def rd(self):
a = self.ser.read(1)
if len(a) == 0:
self.debug_msg("Rx Timeout")
return None
b = bytearray(a)[0]
self.debug("Rd", bytearray((b,)));
return b
def send(self, pfx, msg):
b = bytearray(msg)
b.append(0)
b.append(0)
c = crc_1021(b)
b[-2] = c >> 8
b[-1] = c & 0xff
c = bytearray()
c.append(pfx)
for i in b:
if i in escapes:
c.append(0x1b)
c.append(i ^ 0xff)
else:
c.append(i)
c.append(0x0d)
self.wr(c)
def recv(self):
b = bytearray()
while True:
d = self.rd()
if d == None:
return None
if d == 0x40:
b = bytearray()
b.append(d)
if d == 0x0d:
break
c = bytearray()
i = 1;
while i < len(b) - 1:
if b[i] == 0x1b:
v = b[i + 1] ^ 0xff
if v not in escapes:
self.debug_msg(
"Missing Escape %02x" % v)
c.append(v)
i += 2
else:
c.append(b[i])
i += 1
if crc_1021(c):
self.debug_msg("CRC error")
return c[:-2]
def readvar(self, nbr):
# I wouldn't be surprised if you can ask for more than
# one variable at the time, given that the length is
# encoded in the response. Havn't tried.
self.send(0x80, (0x3f, 0x10, 0x01, nbr >> 8, nbr & 0xff))
b = self.recv()
if b == None:
return (None, None)
if b[0] != 0x3f or b[1] != 0x10:
return (None, None)
if b[2] != nbr >> 8 or b[3] != nbr & 0xff:
return (None, None)
if b[4] in units:
u = units[b[4]]
else:
u = None
# Decode the mantissa
x = 0
for i in range(0,b[5]):
x <<= 8
x |= b[i + 7]
# Decode the exponent
i = b[6] & 0x3f
if b[6] & 0x40:
i = -i
i = math.pow(10,i)
if b[6] & 0x80:
i = -i
x *= i
if False:
# Debug print
s = ""
for i in b[:4]:
s += " %02x" % i
s += " |"
for i in b[4:7]:
s += " %02x" % i
s += " |"
for i in b[7:]:
s += " %02x" % i
print(s, "=", x, units[b[4]])
return (x, u)
if __name__ == "__main__":
import time
comport = sys.argv[1]
command = int( sys.argv[2], 0)
index = int( sys.argv[3], 0)
foo = kamstrup( comport )
value,unit = foo.readvar( command )
# We're sending an integer value to Domoticz, so with two digits, muliply by 100
# Use Domiticz setting to devide by 100 again.
value = int(value * 1000)
requestPost = urllib2.Request( "http://192.168.178.100:8080/json.htm?type=command&param=udevice&idx=" + str(index) + "&svalue=" + str(value) )
resultPost = json.load(urllib2.urlopen(requestPost))
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment