Getting Null object in readScalerAndUnits() method

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By rahul.singh@ra… , 24 January, 2019
Forums
Gurux DLMS for Java

void readScalerAndUnits() throws Exception {
GXDLMSObjectCollection objs = dlms.getObjects()
.getObjects(new ObjectType[] { ObjectType.REGISTER,
ObjectType.DEMAND_REGISTER,
ObjectType.EXTENDED_REGISTER });
try {
if (dlms.getNegotiatedConformance()
.contains(Conformance.MULTIPLE_REFERENCES)) {
List<Entry<GXDLMSObject, Integer>> list =
new ArrayList<Entry<GXDLMSObject, Integer>>();
for (GXDLMSObject it : objs) {
if (it instanceof GXDLMSRegister) {
list.add(new GXSimpleEntry<GXDLMSObject, Integer>(it,
3));
}
if (it instanceof GXDLMSDemandRegister) {
list.add(new GXSimpleEntry<GXDLMSObject, Integer>(it,
4));
}
}
readList(list);
}

Unable to add readList .

i amd using sample client java .

Please Help

Kurumi

7 years 4 months ago

Hi,

I believe that you have connected using Authentication None. Some meters don't return any registers with that authentication. You need to change authentication to Low or High and try again.

You can test this with GXDLMSDirector.

BR,

Mikko

Hi Mikko,

static int getParameters(String[] args, Settings settings) {
GXNet net = null;
settings.client.setInterfaceType(InterfaceType.HDLC);
settings.client.setUseLogicalNameReferencing(true);
settings.media = new GXNet();
net = (GXNet) settings.media;
net.setHostName("192.168.54.32");
net.setPort(Integer.parseInt("1234"));
settings.client.setPassword("ABCD0001".getBytes());
settings.iec = false;
settings.client.setAuthentication(Authentication.valueOfString("Low"));
settings.client.setClientAddress(Integer.parseInt("29"));
settings.client.setServerAddress(Integer.parseInt("01"));
return 0;
}

i have used authentyication = LOw

Somewhere else i need to mention .

I am using Gurux java client example

Am Using LOW Authentication
Tried With
settings.client.setAuthentication(Authentication.valueOfString("LOW"));

1. settings.client.setPassword("ABCD0001".getBytes("ASCII"));
2. settings.client.setPassword("ABCD0001".getBytes());
3. settings.client.setPassword("ABCD0001");

Am Using LOW Authentication
Tried With
settings.client.setAuthentication(Authentication.valueOfString("LOW"));

1. settings.client.setPassword("ABCD0001".getBytes("ASCII"));
2. settings.client.setPassword("ABCD0001".getBytes());
3. settings.client.setPassword("ABCD0001");