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 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