first commit
This commit is contained in:
denis
@@ -0,0 +1,381 @@
|
||||
#!/usr/bin/python
|
||||
# -* coding: utf-8 *-
|
||||
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
# Developed 2009-2010 by Bernd Wurst <bernd@schokokeks.org>
|
||||
# for own use.
|
||||
# Released to the public in 2012.
|
||||
|
||||
|
||||
import socket, datetime, logging
|
||||
|
||||
logging.basicConfig(level=logging.INFO)
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
# Constantes
|
||||
inverter_types = {
|
||||
20010: { 'desc': 'SolarMax 2000S', 'max': 2000, }, # Juste deviner
|
||||
20020: { 'desc': 'SolarMax 3000S', 'max': 3000, },
|
||||
20030: { 'desc': 'SolarMax 4200S', 'max': 4200, },
|
||||
20040: { 'desc': 'SolarMax 6000S', 'max': 6000, },
|
||||
}
|
||||
|
||||
|
||||
query_types = [
|
||||
'KDY', 'KYR', 'KMT', 'KT0', 'IL1', 'IDC', 'PAC', 'PRL',
|
||||
'SYS', 'SAL', 'TNF', 'PAC', 'PRL', 'TKK', 'UL1', 'UDC',
|
||||
'ADR', 'TYP', 'PIN', 'MAC', 'CAC', 'KHR', 'EC00', 'EC01',
|
||||
'EC02', 'EC03', 'EC04', 'EC05', 'EC06', 'EC07', 'EC08',
|
||||
'BDN', 'SWV', 'DIN', 'LAN', 'SDAT', 'FDAT'
|
||||
]
|
||||
|
||||
status_codes = {
|
||||
20000: 'Pas de communication',
|
||||
20001: 'En cours d\'utilisation',
|
||||
20002: 'Trop peu de rayonnement',
|
||||
20003: 'Démarrage',
|
||||
20004: 'Opération sur MPP',
|
||||
20005: 'Le ventilateur tourne',
|
||||
20006: 'Fonctionnement à puissance maximale',
|
||||
20007: 'Limite de température',
|
||||
20008: 'Fonctionnement sur secteur',
|
||||
}
|
||||
|
||||
alarm_codes = {
|
||||
0: "pas d'erreur",
|
||||
1: "Erreur externe 1",
|
||||
2: "Erreur d'isolement côté DC",
|
||||
4: "Courant de défaut à la terre trop important",
|
||||
8: "Rupture du fusible de la protection terre",
|
||||
16: "Alarme externe 2",
|
||||
32: "Limitation de température à long terme",
|
||||
64: "Erreur alimentation CA",
|
||||
128: "Alarme externe 4",
|
||||
256: "Ventilateur défectueux",
|
||||
512: "Casser le fusible",
|
||||
1024: "Défaillance du capteur de température",
|
||||
2048: "Alarme 12",
|
||||
4096: "Alarme 13",
|
||||
8192: "Alarme 14",
|
||||
16384: "Alarme 15",
|
||||
32768: "Alarme 16",
|
||||
65536: "Alarme 17",
|
||||
}
|
||||
|
||||
# Hilfs-Routine (DEBUG)
|
||||
|
||||
def DEBUG(*s):
|
||||
out = [datetime.datetime.now().isoformat()+':',] + [str(x) for x in s]
|
||||
#print(' '.join(out))
|
||||
logger.debug(' '.join(out))
|
||||
|
||||
def get_status_code(v):
|
||||
for i in status_codes:
|
||||
if status_codes[i]==v:
|
||||
return i
|
||||
return None
|
||||
|
||||
####################################
|
||||
## main class
|
||||
####################################
|
||||
class SolarMax ( object ):
|
||||
|
||||
def __init__(self, host, port):
|
||||
self.__host = host
|
||||
self.__port = port
|
||||
self.__inverters = {}
|
||||
self.__socket = None
|
||||
self.__connected = False
|
||||
self.__allinverters = False
|
||||
self.__inverter_list = []
|
||||
self.__connect()
|
||||
|
||||
def __repr__(self):
|
||||
return 'SolarMax[%s:%s / socket=%s]' % (self.__host, self.__port, self.__socket)
|
||||
|
||||
def __str__(self):
|
||||
return 'SolarMax[%s:%s / socket=%s / inverters=%s]' % (self.__host, self.__port, self.__socket, self.inverters())
|
||||
|
||||
def __disconnect(self):
|
||||
try:
|
||||
DEBUG('Closing open connection to %s:%s' % (self.__host, self.__port))
|
||||
self.__socket.shutdown(socket.SHUT_RDWR)
|
||||
self.__socket.close()
|
||||
del self.__socket
|
||||
except:
|
||||
pass
|
||||
finally:
|
||||
self.__connected = False
|
||||
self.__allinverters = False
|
||||
self.__socket = None
|
||||
|
||||
def __del__(self):
|
||||
DEBUG('destructor called')
|
||||
self.__disconnect()
|
||||
|
||||
def __connect(self):
|
||||
self.__disconnect()
|
||||
DEBUG('establishing connection to %s:%i...' % (self.__host, self.__port))
|
||||
try:
|
||||
self.__socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
||||
|
||||
self.__socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
||||
|
||||
s = self.__socket
|
||||
s.settimeout(2)
|
||||
s.connect((self.__host, self.__port))
|
||||
s.settimeout(10)
|
||||
|
||||
self.__connected = True
|
||||
DEBUG('connected.')
|
||||
except:
|
||||
DEBUG('connection to %s:%i failed' % (self.__host, self.__port))
|
||||
self.__connected = False
|
||||
self.__allinverters = False
|
||||
|
||||
|
||||
# Utility-functions
|
||||
def hexval(self, i):
|
||||
return (hex(i)[2:]).upper()
|
||||
|
||||
|
||||
def checksum(self, s):
|
||||
total = 0
|
||||
for c in s:
|
||||
total += ord(c)
|
||||
h = self.hexval(total)
|
||||
while len(h) < 4:
|
||||
h = '0'+h
|
||||
return h
|
||||
|
||||
def __read_char(self):
|
||||
byte = self.__socket.recv(1)
|
||||
if len(byte) > 0:
|
||||
return ord(byte) & 0x7F
|
||||
return 0
|
||||
|
||||
def __receive(self):
|
||||
try:
|
||||
data = []
|
||||
while True:
|
||||
c = self.__read_char()
|
||||
if c:
|
||||
data.append(chr(c))
|
||||
if not c or chr(c) == '}':
|
||||
break
|
||||
return ''.join(data)
|
||||
|
||||
except:
|
||||
self.__allinverters = False
|
||||
return ''
|
||||
|
||||
|
||||
def __parse(self, answer):
|
||||
# convenience checks
|
||||
if answer[0] != '{' or answer[-1] != '}':
|
||||
raise ValueError('malformed answer: %s' % answer)
|
||||
raw_answer = answer
|
||||
answer = answer[1:-1]
|
||||
checksum = answer[-4:]
|
||||
content = answer[:-4]
|
||||
# checksum
|
||||
if checksum != self.checksum(content):
|
||||
raise ValueError('checksum error')
|
||||
|
||||
(header, content) = content[:-1].split('|', 2)
|
||||
(inverter, fb, length) = header.split(';', 3)
|
||||
if fb != 'FB':
|
||||
raise ValueError('answer not understood')
|
||||
# length
|
||||
length = int(length, 16)
|
||||
if length != len(raw_answer):
|
||||
raise ValueError('length mismatch')
|
||||
|
||||
inverter = int(inverter)
|
||||
|
||||
# Bei schreibzugriff antwortet der WR mit 'C8'
|
||||
# Avec un accès en écriture, le WR répond par 'C8'
|
||||
#if not content.startswith('64:'):
|
||||
# raise ValueError('Inverter did not understand our query')
|
||||
|
||||
content = content[3:]
|
||||
data = {}
|
||||
|
||||
for item in content.split(';'):
|
||||
(key, value) = item.split('=')
|
||||
if key not in query_types:
|
||||
raise NotImplementedError("Don't know %s" % item)
|
||||
data[key] = value
|
||||
return (inverter, data)
|
||||
|
||||
|
||||
def __build_query(self, idn, values, qtype=100):
|
||||
qtype = self.hexval(qtype)
|
||||
if type(values) == list:
|
||||
for v in values:
|
||||
if v not in query_types:
|
||||
raise ValueError('Unknown data type »'+v+'«')
|
||||
values = ';'.join(values)
|
||||
|
||||
#elif type(values) in [str, unicode]:
|
||||
elif type(values) in [str,]:
|
||||
pass
|
||||
else:
|
||||
raise ValueError('value has unsupported type')
|
||||
|
||||
querystring = '|' + qtype + ':' + values + '|'
|
||||
# Länge vergrößern um: 2 x { (2), WR-Nummer (2), "FB" (2), zwei Semikolon (2), Länge selbst (2), checksumme (4)
|
||||
# Augmentez la longueur de : 2 x { (2), le numéro WR (2), "FB" (2), deux points-virgules (2), la longueur elle-même (2), la somme de contrôle (4)
|
||||
l = len(querystring) + 2 + 2 + 2 + 2 +2 + 4
|
||||
querystring = 'FB;%02i;%s%s' % (int(idn), self.hexval(l), querystring)
|
||||
querystring += self.checksum(querystring)
|
||||
return '{%s}' % querystring
|
||||
|
||||
|
||||
def __send_query(self, querystring):
|
||||
try:
|
||||
DEBUG(self.__host, '=>', querystring)
|
||||
#self.__socket.send(querystring)
|
||||
self.__socket.send(querystring.encode())
|
||||
except socket.timeout:
|
||||
self.__allinverters = False
|
||||
self.__connected = False
|
||||
|
||||
|
||||
def query(self, idn, values, qtype=100):
|
||||
q = self.__build_query(idn, values, qtype)
|
||||
DEBUG("WR %i: %s" % (idn, q))
|
||||
|
||||
self.__send_query(q)
|
||||
answer = self.__receive()
|
||||
|
||||
if answer:
|
||||
(inverter, data) = self.__parse(answer)
|
||||
for d in data.keys():
|
||||
data[d] = self.normalize_value(d, data[d])
|
||||
return (inverter, data)
|
||||
else:
|
||||
self.__allinverters = False
|
||||
|
||||
if not self.__allinverters and not self.__detection_running:
|
||||
self.detect_inverters()
|
||||
elif not self.__connected:
|
||||
self.__connect()
|
||||
else:
|
||||
raise socket.timeout
|
||||
return None
|
||||
|
||||
|
||||
def normalize_value(self, key, value):
|
||||
if key in [ 'KDY', 'UL1', 'UDC']:
|
||||
return float(int(value, 16)/10)
|
||||
|
||||
elif key in [ 'IL1', 'IDC', 'TNF', ]:
|
||||
return float(int(value, 16)/100)
|
||||
|
||||
elif key in [ 'PAC', 'PIN', ]:
|
||||
return float(int(value, 16)/2)
|
||||
|
||||
elif key in [ 'SAL', ]:
|
||||
return int(value, 16)
|
||||
|
||||
elif key in [ 'SYS', ]:
|
||||
(x,y) = value.split(',',2)
|
||||
x = int(x, 16)
|
||||
y = int(y, 16)
|
||||
return (x,y)
|
||||
|
||||
elif key in [ 'SDAT', 'FDAT' ]:
|
||||
(date, time) = value.split(',',2)
|
||||
time = int(time, 16)
|
||||
return datetime.datetime(int(date[:3], 16), int(date[3:5], 16), int(date[5:], 16), time//3600, (time % 3600) // 60, time % (3600*60))
|
||||
else:
|
||||
return int(value, 16)
|
||||
|
||||
|
||||
def write_setting(self, inverter, data):
|
||||
rawdata = []
|
||||
for key,value in data.iteritems():
|
||||
key = key.upper()
|
||||
if key not in query_types:
|
||||
raise ValueError('unknown type')
|
||||
value = self.hexval(value)
|
||||
rawdata.append('%s=%s' % (key, value))
|
||||
|
||||
DEBUG(self.query(inverter, ';'.join(rawdata), 200))
|
||||
|
||||
|
||||
def status(self, inverter):
|
||||
result = self.query(inverter, ['SYS', 'SAL'])
|
||||
if not result:
|
||||
return ('Offline', 'Offline')
|
||||
|
||||
result = result[1]
|
||||
errors = []
|
||||
if result['SAL'] > 0:
|
||||
for (code, descr) in alarm_codes.iteritems():
|
||||
if code & result['SAL']:
|
||||
errors.append(descr)
|
||||
|
||||
status = status_codes[result['SYS'][0]]
|
||||
|
||||
return (status, ', '.join(errors))
|
||||
|
||||
|
||||
def use_inverters(self, list_of):
|
||||
self.__inverter_list = list_of
|
||||
self.detect_inverters()
|
||||
|
||||
|
||||
def detect_inverters(self):
|
||||
self.__inverters = {}
|
||||
if not self.__connected:
|
||||
self.__connect()
|
||||
|
||||
self.__detection_running = True
|
||||
for inverter in self.__inverter_list:
|
||||
try:
|
||||
DEBUG('searching for #%i (socket: %s)' % (inverter, self.__socket))
|
||||
(inverter, data) = self.query(inverter, [ 'ADR', 'TYP', 'PIN' ])
|
||||
|
||||
if data['TYP'] in inverter_types.keys():
|
||||
self.__inverters[inverter] = inverter_types[data['TYP']].copy()
|
||||
self.__inverters[inverter]['installed'] = data['PIN']
|
||||
else:
|
||||
DEBUG('Unknown inverter type: %s (ID #%i)' % (data['TYP'], data['ADR']))
|
||||
|
||||
except Exception as e:
|
||||
DEBUG('Inverter #%i not found: %s' % (inverter, e))
|
||||
|
||||
self.__allinverters = False
|
||||
|
||||
self.__detection_running = False
|
||||
|
||||
if len(self.__inverters) == len(self.__inverter_list):
|
||||
self.__allinverters = True
|
||||
DEBUG('found all inverters:')
|
||||
DEBUG(self.__inverters)
|
||||
else:
|
||||
DEBUG('not all invertes found, reconnection!')
|
||||
self.__connect()
|
||||
|
||||
|
||||
def inverters(self):
|
||||
if not self.__allinverters:
|
||||
self.detect_inverters()
|
||||
return self.__inverters
|
||||
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user