@martin-kudláček said in Axon M505 bluetooth:

Could you please share with us your intention, so I can point you to proper solution?

Hi,

We have developed our own software for Axon. We would now like to have Bluetooth enabled.

With these instructions (http://wiki.friendlyarm.com/wiki/index.php/NanoPi_NEO_Plus2#Bluetooth), we have not been able to do it work.

I would be very grateful if I could get specific instructions for starting Bluetooth.

Also ping @TomasKnot

/Vesa

Hi,

Maybe the wrong category but how do I get Axon M505 bluetooth to work?

Thanks!

/Vesa

Hi @tomas_hora,

So what is the simplest way to read MBus with Neuron...with a MBus to RS485 converter or possibly with some MBus to USB converter? Can you recommend any converter?`

Vesa

@tomas_knot

Hi,

Actually TX light flashes every polling round.

Also there is no unipi_plc directory.

Vesa

@tomas_knot

Hi,

Now i have UniPian-Neuron-OS-2018-03-09.img.zip in my SD. Actually meter is on my desk, so there is no any electro-magnetics :)

Kampstup Multical's Modbus address is 67 and it is connected to RS485 port 2.1

pi@M503-sn47:~ $ mbpoll /dev/extcomm/2/0 -a 67

mbpoll 1.3-3 - FieldTalk(tm) Modbus(R) Master Simulator
Copyright (c) 2015 epsilonRT, All rights reserved.
This software is governed by the CeCILL license <http://www.cecill.info>

Protocol configuration: Modbus RTU
Slave configuration...: address = [67]
                        start reference = 1, count = 1
Communication.........: /dev/extcomm/2/0,      19200-8E1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 67... Ctrl-C to stop)
Read output (holding) register failed: Connection timed out
-- Polling slave 67... Ctrl-C to stop)
Read output (holding) register failed: Connection timed out
-- Polling slave 67... Ctrl-C to stop)
Read output (holding) register failed: Connection timed out

Any ideas?

Vesa

Hi @tomas_knot

Thank you for your answer.

We try to get the Kampstrup Multical 602 (docs) with Modbus module (docs) to work with the Neuron M503....Without success.

mbpoll can not find anything. All extcomm has gone through. Multical is connected to port 2.1.

uname -a gives 4.9.59-v7+ #1047

Vesa

Hi,

Neuron M503 has two RS485 ports (1.1 and 2.1)

ls -la /dev/extcomm/1 gives 0 -> /dev/pts/1
ls -la /dev/extcomm/2 gives 0 -> /dev/pts/2

So...does /dev/pts/1 point to port 1.1 and /dev/pts/2 to port 2.1?

Thx,
Vesa

It worked, thank you!

In my case:

ExecStart=/opt/neurontcp/neuron_tcp_server -p 502 -l 0.0.0.0

So...this maneuver should fix any problems with 1-wire sensors if the fault is not on the connector(s) or the 8 port hub?

Vesa

@tomas_knot said in How to disable and enable the 1Wire bus (M503):

It is possible to reset the bus by using the internal Modbus server, but this is somewhat insecure, non-trivial and requires editing systemd scripts.

Insecure is my middle name :D

So can you tell me how that can be done with Modbus server?

Vesa

Hi,

How can i reset (disable and enable) 1-wire bus in Neuron M503?

Vesa