Chris-Wang-bjc

@JoelBender I have same problem, so how to solve it? Can I define error code and error class by myself? I am looking forward to your reply.

Thanks for your reply, but sorry, I‘m not sure I understand your reply correctly. You can tell me more details about "hasattr(apdu, 'errorType')"? I hope the error message will return...

@bbartling Thanks for your reply. Sorry, I may not have explained my problem, it's write property service, not read property service. There is no problem with my code syntax, I...

 Here is my code. I'm not sure the format of the "presentvalue" that I write correctly. I'm sure my device supports BitString data type, because I'm trying write it...

Thank you very much, I will take more try.