RequestUtils.readProperties Bacnettimeoutexception

[cenk]

We are reading present value each 1 second periodically in the thread.

refs3 = new PropertyReferences();
refs3.add(oid, PropertyIdentifier.presentValue);

PropertyValues pvs3 = RequestUtils.readProperties(ld, rd, refs3, null);

Sometimes Bacnettimeoutexception error occurred.

com.serotonin.bacnet4j.exception.BACnetTimeoutException
at com.serotonin.bacnet4j.transport.ServiceFutureImpl.result(ServiceFutureImpl.java:74)
	at com.serotonin.bacnet4j.transport.ServiceFutureImpl.get(ServiceFutureImpl.java:63)
	at com.serotonin.bacnet4j.util.RequestUtils.readProperties(RequestUtils.java:313)

When LocalDevice terminated and initial again error looking up

ld.terminate();
try {
	ld.initialize();
} catch (Exception e) {
    e.printStackTrace();
}

What is the problem. How can I find a solution?

Thank you

[phildunlap]

Hi cenk,

Have you tried increasing your Transport's timeout to a longer value? There is also some caching in the local device where it won't try to find a device again for 30 seconds (a member variable of local device) if its first attempt failed, timeoutDeviceRetention

[cenk]

Hi,

I increased time out

ld.withAPDUTimeout(new UnsignedInteger(30000));

But result is same.

We are not using remotedevice cach of local device. Remotedevice is a variable in our class.

[phildunlap]

Then you should be able to drop a breakpoint in the ServiceFutureImpl method and see where that BACnet timeout exception is coming from.

But result is same.

Does it at least take longer to timeout? I do not believe the actual sending of the property request is present in the code you have shared. Nor is the configuration of the local device there. That's not a lot of information to work with.