Getting error java.lang.IllegalArgumentException: Change type failed. Not enought data.

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By Mithun Tiruvedula , 27 February, 2021
Forums
Gurux DLMS for Java

Hi all,

I'm relatively new to DLMS and associated development. I'm trying to build a Tridium Niagara driver for DLMS.
I was able to run the server from https://github.com/Gurux/gurux.dlms.java/tree/master/gurux.dlms.server… , and am using the code from https://github.com/Gurux/gurux.dlms.java/tree/master/gurux.dlms.client… to read data.

I am able to read all data except for a few fields, as follows:
1. GXDLMSAutoConnect (0.0.2.1.0.255 Ch. 0 Auto connect) - Position 5
2. GXDLMSActivityCalendar (0.0.13.0.0.255 Ch. 0 Activity calendar #1) - Position 3
3. GXDLMSActivityCalendar (0.0.13.0.0.255 Ch. 0 Activity calendar #1) - Position 7

And here's the exception I get, originating at com.leanovate.dlmsDriver.GXDLMSReader.read from my code which is adapted from the method getReadOut() in https://github.com/Gurux/gurux.dlms.java/blob/master/gurux.dlms.client… (Line number 837).

gurux.dlms.client java.lang.IllegalArgumentException: Change type failed. Not "enought" data

Am I doing something wrong? Are these fields readable?
Thank you in advance!!

Regards,
Mithun

Kurumi

5 years 3 months ago

Hi,

I just try this and it worked like expected. Have you made changed to the source code?

BR,

Mikko

Mithun Tiruvedula

5 years 3 months ago

Hi Mikko

No, I have not changed any source code.
The error stopped occurring and happens irregularly now. Weird!
if it happens again, I'll post the steps to reproduce.

Thanks and Regards,
Mithun

Kurumi

5 years 3 months ago

Hi,

Thank you for this info.
BR,
Mikko