Send value pyiec61850

[keyvdir]

Hi, first of all i'm sorry because i'm really new with this standard. I want to send sensors value attached to raspberry pi to another raspberry pi using iec 61850 standard. Here's what i'm trying to make.

Server's Side: self.__model = iec61850.IedModel_create("testmodel") lDevice1 = iec61850.LogicalDevice_create("SENSORS", self.__model); ttmp1 = iec61850.LogicalNode_create("TTMP1", lDevice1); iec61850.CDC_VSS_create("TmpStr", iec61850.toModelNode(ttmp1), 1) value = self.measure_temp() self.__iedServer = iec61850.IedServer_create(self.__model) iec61850.IedServer_start(self.__iedServer, tcpPort); print("Waiting for Connection...")

Client's Side: con = iec61850.IedConnection_create() error = iec61850.IedConnection_connect(con, "localhost", tcpPort) if (error == iec61850.IED_ERROR_OK): print("Connected to Server") # Accessing to VSS values theVal = "testmodelSENSORS/TTMP1.TmpStr.stVal.f" theValType = iec61850.IEC61850_FC_ST temperatureSetpoint = iec61850.IedConnection_readStringValue(con, theVal, theValType) print(temperatureSetpoint)

I want to send the value = self.measure_temp() to be seen in the client's side. Can you please help me? The output in clien's side is always 22. I'll really appreciate your help. Thank you very much

[cedricboudinet]

Hello You want the server to periodically update the value and the client to periodically read the value on the server? Bests

[keyvdir]

Hello You want the server to periodically update the value and the client to periodically read the value on the server? Bests

Yess, that's what i want to do. I already make a data object and data attribute. Then with update attribute value, i tried to input the value manually (later on i want the value from some sensor attached in raspberry pi gpio). And in the client side i already use the read object, but still the value cannot be seen. Can you please help me out? All the examples only available in C language, but i'm trying to make with python language.

Update's Code. Server:

#Create Model
self.__model = iec61850.IedModel_create("testmodel");
#Create Device
lDevice1 = iec61850.LogicalDevice_create("SENSORS", self.__model);
#Create Node
ttmp1 = iec61850.LogicalNode_create("TTMP1", lDevice1);
#Create Common Data Classes
iec61850.CDC_SAV_create("TmpSv",  iec61850.toModelNode(ttmp1), 0, False);
iec61850.CDC_ASG_create("TmpSp",  iec61850.toModelNode(ttmp1), 0, False);
#Create Data Object
do1 = iec61850.DataObject_create("Temp1", iec61850.toModelNode(ttmp1), 0);
#Create Data Attribute
iec61850.DataAttribute_create("float", iec61850.toModelNode(do1), iec61850.IEC61850_FLOAT64, iec61850.IEC61850_FC_MX, 0, 0, 0);

#Create Server Connection
self.__iedServer = iec61850.IedServer_create(self.__model);
iec61850.IedServer_start(self.__iedServer, tcpPort);

#Update Data Attribute Value
nil = 33; #Example Value
nilai = iec61850.MmsValue_newFloat(nil);

iec61850.IedServer_lockDataModel(self.__iedServer);
val1 = iec61850.IedServer_updateAttributeValue(self.__iedServer, iec61850.toDataAttribute(do1), nilai);
iec61850.IedServer_unlockDataModel(self.__iedServer);
iec61850.MmsValue_setFloat(nilai, nil);

Client:

con = iec61850.IedConnection_create()
error = iec61850.IedConnection_connect(con, "localhost", tcpPort)

if (error == iec61850.IED_ERROR_OK):
print("Connected to Server")
# Accessing values
theVal = "testmodelSENSORS/TTMP1.TmpSv.Mag.f"
theValType = iec61850.IEC61850_FC_MX
value = iec61850.IedConnection_readObject(con, theVal, theValType)

if (value != 0):        
fval = iec61850.MmsValue_toFloat(value); #Error
print("Result:" % value);
iec61850.MmsValue_delete(value);#Error

iec61850.IedConnection_close(con);

But i got an error saying that: TypeError: in method 'MmsValue_toFloat', argument 1 of type 'MmsValue const *'

[hanusek]

Hello You want the server to periodically update the value and the client to periodically read the value on the server? Bests

Yess, that's what i want to do. I already make a data object and data attribute. Then with update attribute value, i tried to input the value manually (later on i want the value from some sensor attached in raspberry pi gpio). And in the client side i already use the read object, but still the value cannot be seen. Can you please help me out? All the examples only available in C language, but i'm trying to make with python language.

Update's Code. Server:

#Create Model
self.__model = iec61850.IedModel_create("testmodel");
#Create Device
lDevice1 = iec61850.LogicalDevice_create("SENSORS", self.__model);
#Create Node
ttmp1 = iec61850.LogicalNode_create("TTMP1", lDevice1);
#Create Common Data Classes
iec61850.CDC_SAV_create("TmpSv",  iec61850.toModelNode(ttmp1), 0, False);
iec61850.CDC_ASG_create("TmpSp",  iec61850.toModelNode(ttmp1), 0, False);
#Create Data Object
do1 = iec61850.DataObject_create("Temp1", iec61850.toModelNode(ttmp1), 0);
#Create Data Attribute
iec61850.DataAttribute_create("float", iec61850.toModelNode(do1), iec61850.IEC61850_FLOAT64, iec61850.IEC61850_FC_MX, 0, 0, 0);

#Create Server Connection
self.__iedServer = iec61850.IedServer_create(self.__model);
iec61850.IedServer_start(self.__iedServer, tcpPort);

#Update Data Attribute Value
nil = 33; #Example Value
nilai = iec61850.MmsValue_newFloat(nil);

iec61850.IedServer_lockDataModel(self.__iedServer);
val1 = iec61850.IedServer_updateAttributeValue(self.__iedServer, iec61850.toDataAttribute(do1), nilai);
iec61850.IedServer_unlockDataModel(self.__iedServer);
iec61850.MmsValue_setFloat(nilai, nil);

Client:

con = iec61850.IedConnection_create()
error = iec61850.IedConnection_connect(con, "localhost", tcpPort)

if (error == iec61850.IED_ERROR_OK):
print("Connected to Server")
# Accessing values
theVal = "testmodelSENSORS/TTMP1.TmpSv.Mag.f"
theValType = iec61850.IEC61850_FC_MX
value = iec61850.IedConnection_readObject(con, theVal, theValType)

if (value != 0):        
fval = iec61850.MmsValue_toFloat(value); #Error
print("Result:" % value);
iec61850.MmsValue_delete(value);#Error

iec61850.IedConnection_close(con);

But i got an error saying that: TypeError: in method 'MmsValue_toFloat', argument 1 of type 'MmsValue const *'

I have the same problem. You solve it?

[keyvdir]

Hello You want the server to periodically update the value and the client to periodically read the value on the server? Bests

Yess, that's what i want to do. I already make a data object and data attribute. Then with update attribute value, i tried to input the value manually (later on i want the value from some sensor attached in raspberry pi gpio). And in the client side i already use the read object, but still the value cannot be seen. Can you please help me out? All the examples only available in C language, but i'm trying to make with python language. Update's Code. Server:

#Create Model
self.__model = iec61850.IedModel_create("testmodel");
#Create Device
lDevice1 = iec61850.LogicalDevice_create("SENSORS", self.__model);
#Create Node
ttmp1 = iec61850.LogicalNode_create("TTMP1", lDevice1);
#Create Common Data Classes
iec61850.CDC_SAV_create("TmpSv",  iec61850.toModelNode(ttmp1), 0, False);
iec61850.CDC_ASG_create("TmpSp",  iec61850.toModelNode(ttmp1), 0, False);
#Create Data Object
do1 = iec61850.DataObject_create("Temp1", iec61850.toModelNode(ttmp1), 0);
#Create Data Attribute
iec61850.DataAttribute_create("float", iec61850.toModelNode(do1), iec61850.IEC61850_FLOAT64, iec61850.IEC61850_FC_MX, 0, 0, 0);

#Create Server Connection
self.__iedServer = iec61850.IedServer_create(self.__model);
iec61850.IedServer_start(self.__iedServer, tcpPort);

#Update Data Attribute Value
nil = 33; #Example Value
nilai = iec61850.MmsValue_newFloat(nil);

iec61850.IedServer_lockDataModel(self.__iedServer);
val1 = iec61850.IedServer_updateAttributeValue(self.__iedServer, iec61850.toDataAttribute(do1), nilai);
iec61850.IedServer_unlockDataModel(self.__iedServer);
iec61850.MmsValue_setFloat(nilai, nil);

Client:

con = iec61850.IedConnection_create()
error = iec61850.IedConnection_connect(con, "localhost", tcpPort)

if (error == iec61850.IED_ERROR_OK):
print("Connected to Server")
# Accessing values
theVal = "testmodelSENSORS/TTMP1.TmpSv.Mag.f"
theValType = iec61850.IEC61850_FC_MX
value = iec61850.IedConnection_readObject(con, theVal, theValType)

if (value != 0):        
fval = iec61850.MmsValue_toFloat(value); #Error
print("Result:" % value);
iec61850.MmsValue_delete(value);#Error

iec61850.IedConnection_close(con);

But i got an error saying that: TypeError: in method 'MmsValue_toFloat', argument 1 of type 'MmsValue const *'

I have the same problem. You solve it?

You can check my repo here: https://github.com/keyvdir/pyiec61850 Hope it solved your problem