Search found 868 matches

by nicolaiB
05 Oct 2021, 12:18
Forum: Software
Topic: Modbus TCP as Master-Slave
Replies: 7
Views: 2182

Re: Modbus TCP as Master-Slave

Hi Joca, please have a look at our tutorials regarding the configuration of our (virtual) Modbus modules: https://revolutionpi.com/tutorials/modbus/?noredirect=en_US. For Modbus RTU you will need either a RevPi Connect with an integrated RS485 interface or a Core3 with an external USB to RS485 adapt...
by nicolaiB
28 Jun 2021, 09:19
Forum: Software
Topic: issue reading Process Image byte variables
Replies: 4
Views: 2008

Re: issue reading Process Image byte variables

Hi, please remove any register configuration and restart the modbus driver / reset the action. Is it still != 0? Regarding the raw address: I have a Modbus RTU meter connected to my RevPi and having the same issue that the register address is specified with 30007, but I have to use 7 in order to get...
by nicolaiB
28 Jun 2021, 09:13
Forum: Software
Topic: issue reading Process Image byte variables
Replies: 4
Views: 2008

Re: issue reading Process Image byte variables

Hi piTest -1 -q -r DOut_Status,b Fail - Returns "00000000" I Expected - "10000000" from this. Have I got something wrong here? How can I read all the DOut_x bits in one piTest command? Why do you expect a different value than 0? Extract from the wiki: DOut_Status: if this byte ha...
by nicolaiB
28 Jun 2021, 09:08
Forum: Hardware
Topic: Revolution Pi Selection
Replies: 3
Views: 1815

Re: Revolution Pi Selection

Hi rishadahmed,

I'm afraid there is no WWAN ready RevPi or extension module, yet. As far as I know this is on the (future) roadmap, but without any date. My suggestion would be to use an industrial Router like the Teltonika RUT950 or if space is a criteria the RUT240.

Nicolai
by nicolaiB
25 Jun 2021, 14:19
Forum: Software
Topic: Dist-Upgrade Stretch -> Buster: Apache redirect auf neuen Port geht nicht
Replies: 19
Views: 7902

Re: Dist-Upgrade Stretch -> Buster: Apache redirect auf neuen Port geht nicht

Das EOL für Buster wird wohl in 2022 liegen. Danach gibt es aber für gewöhnlich noch ein paar Monat / Jahre LTS Support.
by nicolaiB
25 Jun 2021, 14:12
Forum: Software
Topic: Dist-Upgrade Stretch -> Buster: Apache redirect auf neuen Port geht nicht
Replies: 19
Views: 7902

Re: Dist-Upgrade Stretch -> Buster: Apache redirect auf neuen Port geht nicht

Hallo Markus,

mit der Abhängigkeit gebe ich dir recht. Die verwendetete PHP Version richten sich nachdem, was durch das jeweils zugrundeliegende Debian Release bereitgestellt wird. Das ist im Falle von Buster 7.3. Eine neuere Version wird es wohl erst mit Bulls Eye geben.

Gruß Nicolai
by nicolaiB
25 Jun 2021, 13:45
Forum: Software
Topic: Software Download
Replies: 9
Views: 3822

Re: Software Download

Hallo Matthias,

ich meine mich zu erinnern, dass das seinerzeit mit Modbus RTU gelöst wurde. Arduino-seitig kannst du die Bibliothek ArduinoModbus verwenden und auf dem RevPi das entsprechende VIrtualDevice.

Gruß Nicolai
by nicolaiB
25 Jun 2021, 13:32
Forum: Software
Topic: Reading MODBUS holding register
Replies: 2
Views: 4266

Re: Reading MODBUS holding register

Hi Saar,

can you please share the log file of the modbus master?

Code: Select all

sudo journalctl -u pimodbus-master.service

What do the Status registers report?

Code: Select all

piTest -r Modbus_Action_Status_1
piTest -r Modbus_Master_Status

BR Nicolai
by nicolaiB
25 Jun 2021, 13:27
Forum: Software
Topic: Can't install OpenVPN
Replies: 1
Views: 1794

Re: Can't install OpenVPN

Hi Ivan,

is there any reason you don't use the openvpn package? You can install it with the following command:

Code: Select all

sudo apt update && sudo apt install openvpn
Nicolai
by nicolaiB
25 Jun 2021, 13:25
Forum: Software
Topic: Dist-Upgrade Stretch -> Buster: Apache redirect auf neuen Port geht nicht
Replies: 19
Views: 7902

Re: Dist-Upgrade Stretch -> Buster: Apache redirect auf neuen Port geht nicht

Hallo Markus,

ich habe gerade mal auf einem Buster System geschaut: libapache2-mod-php7.3 (also PHP 7.3).

Gruß Nicolai