def update_recurse(con, submodel, path):
err = -1
if len(path) < 1:
logger.error("recusion into model went wrong")
err = -1
elif len(path) == 1:
if submodel[path[0]] and 'reftype' in submodel[
path[0]] and submodel[path[0]]['reftype'] == 'DA':
fcName = submodel[path[0]]['FC']
#read DA
fc = lib61850.FunctionalConstraint_fromString(fcName)
error = lib61850.IedClientError()
value = lib61850.IedConnection_readObject(
con, ctypes.byref(error), ref, fc)
if error.value == 0:
submodel[path[0]]['value'], submodel[
path[0]]['type'] = iec61850client.printValue(value)
lib61850.MmsValue_delete(value)
err = 0
else:
logger.error("could not read DA: %s from device" % ref)
err = -1
else:
submodel[path[0]] = iec61850client.printDataDirectory(
con, ref)
if submodel[path[0]]: # check if value or empty returned
err = 0
else:
err = -1
else:
submodel[path[0]], err = update_recurse(
con, submodel[path[0]], path[1:])
return submodel, err
def getIED(self, host, port):
if port == "" or port == None:
port = 102
if host == None:
logger.error("missing hostname")
return -1
tupl = host + ":" + str(port)
if tupl in self.connections and self.connections[tupl]["con"] != None:
if not self.connections[tupl]["model"]:
con = self.connections[tupl]["con"]
model = iec61850client.discovery(con)
if model: #if model is not empty
# store the model
self.connections[tupl]["model"] = model
return 0
else:
#we could not perform a discovery, so remove connection
lib61850.IedConnection_destroy(con)
self.connections[tupl]["con"] = None
return -1
else:
#we have a connection and a model
return 0
if not tupl in self.connections:
self.connections[tupl] = {}
self.connections[tupl]["con"] = None
self.connections[tupl]["model"] = {}
con = lib61850.IedConnection_create()
error = lib61850.IedClientError()
lib61850.IedConnection_connect(con,ctypes.byref(error), host, port)
if error.value == lib61850.IED_ERROR_OK:
# store the active connection
self.connections[tupl]["con"] = con
# read the model
model = iec61850client.discovery(con)
if model: #if model is not empty
# store the model
self.connections[tupl]["model"] = model
return 0
else:
return -1
else:
lib61850.IedConnection_destroy(con)
return -1
def printDataDirectory(con, doRef):
tmodel = {}
if doRef.find("/") == -1:
logger.error("invalid datadirecory")
return {}
error = lib61850.IedClientError()
dataAttributes = lib61850.IedConnection_getDataDirectoryFC(
con, ctypes.byref(error), doRef)
if error.value != 0:
logger.error("could not get logical device list, error:%i" %
error.value)
if dataAttributes:
dataAttribute = lib61850.LinkedList_getNext(dataAttributes)
while dataAttribute:
daName = ctypes.cast(
lib61850.LinkedList_getData(dataAttribute),
ctypes.c_char_p).value.decode("utf-8")
daRef = doRef + "." + daName[:-4]
fcName = daName[-3:-1]
submodel = iec61850client.printDataDirectory(con, daRef)
if submodel:
tmodel[daName[:-4]] = submodel
else:
tmodel[daName[:-4]] = {}
tmodel[daName[:-4]]['reftype'] = "DA"
tmodel[daName[:-4]]['FC'] = fcName
tmodel[daName[:-4]]['value'] = "UNKNOWN"
#read DA
fc = lib61850.FunctionalConstraint_fromString(fcName)
value = lib61850.IedConnection_readObject(
con, ctypes.byref(error), daRef, fc)
if error.value == 0:
tmodel[daName[:-4]]['value'], tmodel[daName[:-4]][
'type'] = iec61850client.printValue(value)
lib61850.MmsValue_delete(value)
dataAttribute = lib61850.LinkedList_getNext(dataAttribute)
lib61850.LinkedList_destroy(dataAttributes)
return tmodel
def writeValue(con, model, ref, value):
submodel, path = iec61850client.parseRef(model,ref)
if not submodel:
logger.error("cannot find ref: %s in model" % ref)
return {},-1
if not 'FC' in submodel:
logger.error("ref is not DA")
return {},-1
fc = lib61850.FunctionalConstraint_fromString(submodel['FC'])
mmsvalue = iec61850client.getMMsValue(submodel['type'],value)
if not mmsvalue:
return model,-1
error = lib61850.IedClientError()
lib61850.IedConnection_writeObject(con, ctypes.byref(error), ref, fc, mmsvalue)
lib61850.MmsValue_delete(mmsvalue)
if error.value == 0:
model, err = iec61850client.updateValueInModel(con, model, ref)
return model, err
return model, error.value
def discovery(con):
tmodel = {}
error = lib61850.IedClientError()
deviceList = lib61850.IedConnection_getLogicalDeviceList(con, ctypes.byref(error))
if error.value != 0:
logger.error("could not get logical device list, error:%i" % error)
if deviceList:
device = lib61850.LinkedList_getNext(deviceList)
while device:
LD_name=ctypes.cast(lib61850.LinkedList_getData(device),ctypes.c_char_p).value.decode("utf-8")
tmodel[LD_name] = {}
logicalNodes = lib61850.IedConnection_getLogicalDeviceDirectory(con, ctypes.byref(error), LD_name)
if error.value != 0:#ret becomes int if connection is lost
lib61850.LinkedList_destroy(deviceList)
return model
logicalNode = lib61850.LinkedList_getNext(logicalNodes)
while logicalNode:
LN_name=ctypes.cast(lib61850.LinkedList_getData(logicalNode),ctypes.c_char_p).value.decode("utf-8")
tmodel[LD_name][LN_name] = {}
#[LNobjects, error] = iec61850.IedConnection_getLogicalNodeVariables(con, LD_name+"/"+LN_name)
LNobjects = lib61850.IedConnection_getLogicalNodeDirectory(con, ctypes.byref(error), LD_name+"/"+LN_name,lib61850.ACSI_CLASS_DATA_OBJECT)
if error.value != 0:#ret becomes int if connection is lost
lib61850.LinkedList_destroy(logicalNodes)
lib61850.LinkedList_destroy(deviceList)
return model
LNobject = lib61850.LinkedList_getNext(LNobjects)
while LNobject:
Do = ctypes.cast(lib61850.LinkedList_getData(LNobject),ctypes.c_char_p).value.decode("utf-8")
tmodel[LD_name][LN_name][Do] = {}
doRef = LD_name+"/"+LN_name+"."+Do
tmodel[LD_name][LN_name][Do] = iec61850client.printDataDirectory(con, doRef)
LNobject = lib61850.LinkedList_getNext(LNobject)
lib61850.LinkedList_destroy(LNobjects)
LNdss = lib61850.IedConnection_getLogicalNodeDirectory(con, ctypes.byref(error), LD_name+"/"+LN_name, lib61850.ACSI_CLASS_DATA_SET)
if error.value != 0:#ret becomes int if connection is lost
lib61850.LinkedList_destroy(logicalNodes)
lib61850.LinkedList_destroy(deviceList)
return tmodel
LNds = lib61850.LinkedList_getNext(LNdss)
while LNds:
DSname = ctypes.cast(lib61850.LinkedList_getData(LNds),ctypes.c_char_p).value.decode("utf-8")
tmodel[LD_name][LN_name][DSname] = {}
#cannot pass the right type to isDeletable(last arg).. keeps complaining about 'bool *', and isDel = ctypes.pointer(ctypes.c_bool(False)) does not work
isDel = ctypes.c_bool(False)
dataSetMembers = lib61850.IedConnection_getDataSetDirectory(con, ctypes.byref(error), LD_name+"/"+LN_name+"."+DSname, ctypes.byref(isDel))
if error.value != 0:#ret becomes int if connection is lost
lib61850.LinkedList_destroy(LNdss)
lib61850.LinkedList_destroy(logicalNodes)
lib61850.LinkedList_destroy(deviceList)
return tmodel
#all DS are assumed not deletable
if isDel == True:
logger.error(" DS: %s, not Deletable" % DSname)
else:
logger.error(" DS: %s, is Deletable" % DSname)
dataSetMemberRef = lib61850.LinkedList_getNext(dataSetMembers)
i = 0
while dataSetMemberRef:
dsRef = ctypes.cast(lib61850.LinkedList_getData(dataSetMemberRef),ctypes.c_char_p).value.decode("utf-8")
DX = dsRef[:-4]
FC = dsRef[-3:-1]
tmodel[LD_name][LN_name][DSname][str(i)] = {}
tmodel[LD_name][LN_name][DSname][str(i)]['reftype'] = "DX"
tmodel[LD_name][LN_name][DSname][str(i)]['type'] = "reference"
tmodel[LD_name][LN_name][DSname][str(i)]['value'] = DX
tmodel[LD_name][LN_name][DSname][str(i)]['FC'] = FC
dataSetMemberRef = lib61850.LinkedList_getNext(dataSetMemberRef)
i += 1
lib61850.LinkedList_destroy(dataSetMembers)
LNds = lib61850.LinkedList_getNext(LNds)
lib61850.LinkedList_destroy(LNdss)
logicalNode = lib61850.LinkedList_getNext(logicalNode)
lib61850.LinkedList_destroy(logicalNodes)
device = lib61850.LinkedList_getNext(device)
lib61850.LinkedList_destroy(deviceList)
return tmodel