Python OpenOPC.open_client方法代码示例

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
   def reconnect(self):
       """ reconnect """
       log.info("reconnect...")
 
       info = ""
       
       if self._lock.locked() == False:
           #self.reconnecting = 1
           self._lock.acquire()
           try:
             
               #self.opc  = OpenOPC.open_client(self.host, self.port)
               #self.opc.connect(self.provider, self.host)
               if self.mode == 'dcom':
                   self.opc = OpenOPC.client("Graybox.OPC.DAWrapper", self.host)
               else:
                   self.opc  = OpenOPC.open_client(self.host, self.port)
           
               info =  self.opc.servers()
               info = info + self.opc.info()
               for group in self.groups:
               
                   self.create_group(group, self.groups[group])
             
               #self.reconnecting = 0
           except Exception, e:
               # release the lock
               info = "excetp: %s"%(e.message)
               log.error(info)
               log.error(traceback.format_exc())
               #self.reconnecting = 0
               
           finally:

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
def connect():
    global opc 
    global list
    opc = None
    list = None
    if debug: print "Connecting..."
    r.set("connected", "BAD")
    while list is None:
        try:
            if debug: print "Connection Attempt {"
            opc = OpenOPC.open_client(opc_server)
            opc.connect(opc_server_name, opc_server)
            list = opc.list('Brave.calendar.opc_group')
            if debug: print "}"
            r.set("connected", "OK")
            r.set("opc_server", plc)
            r.set("opc_server_name", opc_server_name)
            r.set("plc", plc)
            r.set("redis_server", redis_server)
        except Exception as e:
            if debug: print e
            try:
                ping(opc_server, c=1)
                print {'error': 'Cannot connect to ' + opc_server_name, 'val': 0}
            except Exception as e:
                if debug: print e
                print {'error': 'Cannot connect to network', 'val': 0}
                pass
            pass
        finally:
            time.sleep(poll_rate)

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
    def connect(self):
        
        logger.debug("connect...............")
        
        try:
            
            if conf["Use_Wrapper"]  == True:
                
                logger.debug(conf["DAWrapper"])
                
                self.opc_client = OpenOPC.client(conf["DAWrapper"], conf["HOST"])

                
            else:
                
                logger.debug(conf["PROVIDER"])
            
                self.opc_client = OpenOPC.open_client(conf["HOST"], conf["PORT"])

            self.opc_client.connect(conf["PROVIDER"], conf["OPC_HOST"]) 
                
            self.connected = 1
            
        except Exception as ex:
            logger.debug(ex)
            self.connected = 0

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
    def connect(self):
        print "attempting OPC connection to", self.opc_name
        self.opc = OpenOPC.open_client(host=self.opc_host)
        self.opc.connect(self.opc_name, self.opc_host)
        if self.points is None:
            pointlist = self.opc.list(recursive=True, flat=True)
            self.points = self.parse_pointlist(pointlist)
        props = self.opc.properties(self.points.keys())
        print "loaded", len(props), "properties"
        points = {}
        for point, pid, key, val in props:
            key = key.decode().encode('ascii','ignore')
            key = key.replace(' ','')
            if isinstance(val, unicode) or isinstance(val, str):
                val = val.encode('ascii','ignore')
            name = self.make_path(point)
            if not name in points:
                points[name] = self.points[point]
            if not exclude(key):
                points[name]['OpcDA/' + key] = str(val)

        # try to make some sense out of the metadata
        for name, meta in points.iteritems():
            unit = str(meta.get('OpcDA/' + self.unit_tag, 'None'))
            dtype = meta.get('OpcDA/ItemCanonicalDataType', None)
            if not dtype:
                print "no datatype tag in", name
                continue
            dtype = 'double'
            if not self.get_timeseries(name):
                name = name.decode().encode('ascii','ignore')
                self.add_timeseries(name, unit, data_type=dtype)
                self.set_metadata(name, points[name])
        vals = self.opc.read(self.points.keys(), group="smap-points-group")
        self.updater = task.LoopingCall(self.update).start(self.rate)

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
 def connect(self):
     
     self._lock.acquire()
     
     self._lock.release()        
   
     try:
         #print self.host
         #print self.opc_host
         #print self.opc_server
         
         #self.opc  = OpenOPC.open_client(self.host, self.port)
         if self.mode == 'dcom':
             self.opc = OpenOPC.client("Graybox.OPC.DAWrapper", self.host)                     
         else:
             self.opc  = OpenOPC.open_client(self.host, self.port)
             
         self.opc.connect(self.opc_server, self.opc_host) 
         #info =  self.opc.servers()
         
         #print info
         
     except OPCError, oe:
         log.debug( str(oe) )
         raise Exception(oe.message)

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
def OPCCommand(self):
    '''
    You will also need to add the following to your config file:
    opc:
      server: 10.0.1.107
      name: OPC SERVER NAME
      tags: ["OPC-SERVER.Brightness_1.Brightness", "OPC-SERVER.TAGNAME"]
      tagcounter: OPC-SERVER.tag_which_is_int_that_tells_frame_has_changed


    This also requires the server you are connecting to be running the OpenOPC
    gateway service.  It comes bundled with OpenOPC.  To get it to route over
    the network you also have to set the windows environment variable OPC_GATE_HOST
    to the actual of the IP address of the server it's running on instead of 'localhost'
    otherwise the interface doesn't bind and you won't be able to connect via
    linux.
    '''
    try:
        import OpenOPC
    except:
        raise Exception('Requires OpenOPC plugin')

    from SimpleSeer.realtime import ChannelManager
    opc_settings = self.session.opc

    if opc_settings.has_key('name') and opc_settings.has_key('server'):
      self.log.info('Trying to connect to OPC Server[%s]...' % opc_settings['server'])
      try:
        opc_client = OpenOPC.open_client(opc_settings['server'])
      except:
        ex = 'Cannot connect to server %s, please verify it is up and running' % opc_settings['server']
        raise Exception(ex)
      self.log.info('...Connected to server %s' % opc_settings['server'])
      self.log.info('Mapping OPC connection to server name: %s' % opc_settings['name'])
      opc_client.connect(opc_settings['name'])
      self.log.info('Server [%s] mapped' % opc_settings['name'])
      
    if opc_settings.has_key('tagcounter'):
      tagcounter = int(opc_client.read(opc_settings['tagcounter'])[0])

    counter = tagcounter
    self.log.info('Polling OPC Server for triggers')
    while True:
      tagcounter = int(opc_client.read(opc_settings['tagcounter'])[0])

      if tagcounter != counter:
        self.log.info('Trigger Received')
        data = dict()
        for tag in opc_settings.get('tags'):
          tagdata = opc_client.read(tag)
          if tagdata:
            self.log.info('Read tag[%s] with value: %s' % (tag, tagdata[0]))
            data[tag] = tagdata[0]

        self.log.info('Publishing data to PUB/SUB OPC channel')
        ChannelManager().publish('opc/', data)
        counter = tagcounter

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
    def __init__(self,canNum,modNum,host=hostDefault,srvName=srvNameDefault):
        self.canNum = canNum
        self.modNum = modNum

        #connect to OPC Server
        self.opc = OpenOPC.open_client(host)
        self.opc.connect(srvName,host)
        time.sleep(waittimeDefault)
        assert self.opc.ping()

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
 def Connect(self, RemoteHost="dcspc", RemotePort=7766, OPCHost="epdt120", OPCServer="OPC20CanOpen+"):
     self.RemoteHost = RemoteHost
     self.RemotePort = RemotePort
     self.OPCHost = OPCHost
     self.OPCServer = OPCServer
     print "Connectining to OPC server " + self.OPCServer + " on " + self.RemoteHost
     self.OPC = OpenOPC.open_client(self.RemoteHost, self.RemotePort)
     self.OPC.connect(self.OPCServer, self.OPCHost)
     print "Connected\nWaiting for OPC server to read all values from devices ..."
     time.sleep(10)

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
def OPCconnect():
    opc = OpenOPC.client()
    #opc = OpenOPC.open_client('localhost')
    opc = OpenOPC.open_client(wm_global.OpcClientName)
    opc.servers()

    # opc.connect('KEPware.KEPServerEx.V4')

    opc.connect(wm_global.OpcServerName)
    return opc

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
    def connect(self):
        
        _lock.acquire()
        
        _lock.release()        
      
        try:
            self.opc  = OpenOPC.open_client(self.host, self.port)
            
            self.opc.connect(self.provider,self.host)      

        except Exception, e:
            
            raise Exception(e.message)

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
 def recreateGroup(self):
     
     _lock.acquire()
     
     _lock.release()
     
     
     info = ""
     if self.reconnecting == 0:
       self.reconnecting = 1
       try:
         self.opc  = OpenOPC.open_client(self.host, self.port)
         self.opc.connect(self.provider, self.host)
         info =  self.opc.servers()
         info = info + self.opc.info()
         for group in self.groups:       
           self.createGroupByWS2(group)
         self.reconnecting = 0
       except Exception, e:
         # release the lock
         info = "excetp: %s"%(e)
         log.error(info)
         log.error(traceback.format_exc())
         self.reconnecting = 0

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
if action == 'sessions':
   print '  %-38s %-18s %-18s' % ('Remote Client', 'Start Time', 'Last Transaction')
   try:
      for guid, host, init_time, tx_time in OpenOPC.get_sessions(open_host, open_port):
         print '  %-38s %-18s %-18s'  % (host, time2str(init_time), time2str(tx_time))
   except:
      error_msg = sys.exc_info()[1]
      print "Cannot connect to OpenOPC service at %s:%s - %s" % (open_host, open_port, error_msg)
   exit()
   
# Connect to OpenOPC service (Open mode)

if opc_mode == 'open':
   try:
      opc = OpenOPC.open_client(open_host, open_port)
   except:
      error_msg = sys.exc_info()[1]
      print "Cannot connect to OpenOPC Gateway Service at %s:%s - %s" % (open_host, open_port, error_msg)
      exit()

# Dispatch to COM class (DCOM mode)

else:
   try:
      opc = OpenOPC.client(opc_class, client_name)
   except OpenOPC.OPCError, error_msg:
      print "Failed to initialize an OPC Automation Class from the search list '%s' - %s" % (opc_class, error_msg)
      exit()

# Connect to OPC server

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
from project import settings
setup_environ(settings)

# import models and choices
from project.web.models import Asset, COLLECTOR_CHOICES
choices = dict(COLLECTOR_CHOICES)

# loop through the OPC servers, connecting to each one and 
# creating the asset objects we need based off of the data
itemcount = 0

for plant in choices:
    for server in choices[plant]:
        # ('192.168.141.204', 'APCOLLECTCMC')
        try:
            opc = OpenOPC.open_client(server[0])
            opc.connect(kepware)
        except:
            print 'Connection to %s (%s) failed!' % (server[0], kepware)
            break

        eoc_list = opc.list("*.EOC", flat=True)

        for item in eoc_list:
            parts = item.split('.')

            # pop the EOC string off the list and put together our components
            tag = parts.pop()
            name = parts[-1]
            path = '.'.join(parts[:-1])

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
 def connect_local(self, svr_name, host="localhost"):
     opc_client = OpenOPC.open_client(host)
     opc_client.connect(svr_name)
     return opc_client

# 需要导入模块: import OpenOPC [as 别名]
# 或者: from OpenOPC import open_client [as 别名]
import OpenOPC
import time
import calendar
import ConfigParser
from optparse import OptionParser
import psycopg2

cfg = ConfigParser.RawConfigParser()
cfg.read('srv.cfg')

host = cfg.get('SERVER_INFO', 'host')
server = cfg.get('SERVER_INFO', 'server')

var = cfg.items('VARIABLES')

opc = OpenOPC.open_client(host)
opc.connect(server)

db=cfg.get('DATA_BASE_INFO','dbname');
db_host=cfg.get('DATA_BASE_INFO','host');
db_user=cfg.get('DATA_BASE_INFO','user');
db_pass=cfg.get('DATA_BASE_INFO','password');

conn = psycopg2.connect('dbname='+db+' host='+db_host+' user='+db_user+' password='+db_pass)
cur = conn.cursor()
state = dict(opc.info())['State']
print "#################################################"
print "Protocolo: %s" % dict(opc.info())['Protocol']
print "OPC Host: %s" % dict(opc.info())['OPC Host']
print "OPC Server: %s" % dict(opc.info())['OPC Server']
print "Status OPC: %s" % state