Hello Wolfgang and PVCS,
Modbus RTU with Connect 4 on 64 bit image shall work with following settings :

Configure COM port default interface for Connect4 in /etc/CODESYSControl_User.cfg
running CODESYS Control for Linux ARM64 SL


[SysFile]
PlaceholderFilePath.1=/etc/revpi, $configrsc$

[SysCom ...

Hello Wolfgang,
Please follow the similar topic posted on the english forum.

viewtopic.php?t=4345

Viele Grüße, Amar

Hello PVCS,

Under General->Serial Port Configuration tab of MODBUS_COM device in codesys tree
COM Port selected will be as follows

/dev/ttyUSB0 -> COM Port 1
/dev/ttyUSB1 -> COM Port 2 ...
/dev/ttyUSBn -> COM Port n

In /etc/CODESYSControl_User.cfg you can try configuring following:

[SysCom ...

Hi,
Are you using 1.4.1.99 beta version of Revolution Pi Library for CODESYS?

For Connect 4 with RevPi Bullseye Image (64 bit) you need to use
CODESYS Control Linux ARM 64 bit.

There may be some incorrect device tree combination in your configured project.

I would recommend to first create a new ...

Hallo,
Möglicherweise liegt es an einem fehlerhaften Bitzugriff im konfigurierten Projekt.
Verwend die neueste Version der RevPi Codesys-Bibliothek.
Überprüf mal, ob das richtige DIO-Modul im Codesys-Gerätebaum konfiguriert ist.
(Verwendest du die Blinklicht-Demo, um einzelne Bits des ...

It is recommended to use latest Codesys control runtime.(CODESYS Control for Raspberry Pi MC V 4.10.0)

https://store.codesys.com/en/softplcs-for-applicationbased-licenses

Some other configuration (probably 1-Wire Busmaster) occupied the placeholder path on your configured device.
When you install ...

Hi Francois,
There is traditional touch panel based HMI soulution from CODESYS ecosystem
https://www.codesys.com/products/codesys-visualization/hmi.html
https://store.codesys.com/en/codesys-hmi-sl-bundle.html

More economical option is using a browser based HMI option usaing CODESYS WebVisu which ...

Analog Input channel should be configured to 0-10V in CODESYS Compact Parameters as in your test case.

Codesys Configuration overwrites pictory configuration.Pictory configuration is independent and not used together with codesys.
The combination with pictory and piTest was an alternate option ...

Hi Vaggelis,
It works at my side as shown in screenshots below:
Compact Test.png

Compact Test 2.png

Test Project: CompactTestAI.zip


Attached project is tested with:
revolutionpibridge-V1.4.1.0
CODESYS Control for Raspberry PI 4.10.0.0


You can try other Analog inputs.

Test if Analog ...

The previous picture shows wiring to Analog input CH 6.
Also, the input variable declared in CODESYS should be called in program in order to be updated cyclically.This can be done as shown in screenshots below.
Regards, Amar