Re: [kura-dev] Modbus tcp problem

[Marcelo Stege <stegem@xxxxxxxxx>]

Hi Amit,

Thank you for your fast reply.

I will try to provide more information.

This is the view of the configuration to the simulator Ananas:

And the view of Wires:

I am sending attached the kura.log file. It is big because I am doing a "burn" test with kura, MQTT server and the hardware. As the log file changes when reach the limit, may be it is necessary an old one with startup of kura.

Basically each time the "timer" box TANANAS send command to box modbus driver SIMULATOR, I get the error message below. For modbus driver box ELEMENT, I have 5 registers configured and when active, I get 5 error messages in the log.

What I have observed is that in my first installation, the comunication with the equipment occured without problem. The modbus  start with these messages after I have installed again all software last week (from raspbian and so on). So, I have reinstalled also the modbus driver from marketplace and after that start get the error messages, I noted that the driver was updated in 2017-08-21, and the first test successfull I have done, I guess, was with a version before this update date.

Let me know if I can get more information in the logs.

Thanks again !!

Marcelo

Em 01/09/2017 15:01, Amit Kumar Mondal escreveu:

Hi Marcelo,

First of all, I would like to appreciate your feedback and reviews. The modus driver available in Eclipse Marketplace is primarily catered to Kura Wires and it does support Modbus over TCP, UDP and RTU.

It seems pretty strange to me as the exception message would only occur if user configures channels in Kura Wires to comprise erroneous Modus Unit ID.

It would also be useful if you can provide log dump for further investigation. So far I can only tell that it should not be related to Modus RTU over TCP as the driver listed in Eclipse Marketplace does support it.

Thanks and Regards,

Amit Kumar Mondal
Phone: +49 160 9100 3436  Email: admin@xxxxxxxxxxxxxx

Skype: arsenalnerk   GitHub: amitjoy
Blog: blog.amitinside.com

Am 1. September 2017 um 19:09:25, Marcelo Stege (stegem@xxxxxxxxx) schrieb:

Hi,

First of all, I woulf like to thanks in advance for any help or for indication where to get the information needed.

I am looking for frameworks to test a building iot application, so I started a PoC with Kura some days ago, testing with a fire panel.

At the first installation of Kura (using 3.1.0-M1), I could communicate with a panel through MODBUS/TCP - around 2 or 3 weeks ago.

But last week I did a new fresh installation (target hw is a rasperry 3), and now I am getting the following message in the log:

2017-09-01 13:34:52,982 [DefaultQuartzScheduler_Worker-5] ERROR o.e.k.i.w.a.WireAsset - ModbusDriverMessages.errorRetrievingUnitId

It seems that the driver is looking for the slave Id but do not get it. I have seen in the kura´s forum that up to some version, the modbus driver had only rtu over tcp protocol available, but as I have had success at the first installation to monitor the equipment, I presume with modbus/tcp, then I guess the error now is looking to be related with modbus rtu over tcp.

Everything else is working nicely and I tried with 3 differents simulators, and with the fire panel: modbus pal (as showed in the kura docs), simple modbus (trying option tcp and rtu over tcp), and ananas. All of them give the same error.

Also, in a second hardware target (raspberry, too), I installed Kura 3.0.0 to see if it was some compatibility issue with 3.1.0-M1, but got the same error.

I have used the ECF modbus driver available in the marketplace, for my PoC. In next step I intend to develop a driver with specific equipment needs.

And, I would like to congratulate everyone working in the framework, and the contributors. It is a very good project.

Regards,

Marcelo

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