Hello ivan.chonin@axbul.bg, After some unsucsessfull attempt, can you let me know What are the latest stable and working OS for RevPi Core S Controller? 64 bit version with 4.9.0.0 doesnt work. currently this only works with the 32bit version of the operating system. it is being worked on. Can we ru...

Hallo BobSouthall,

please follow the checklist below:
Revolution Pi Checklist

If this does not help, it is definitely an RMA case.
Please contact support via the following link.
And please mention this forum post in the ticket.
Service portal

Best regards
Giuseppe Pagano

Hello jassa,

check the links below:
Modbus Checklist
RS-485 Checklist
Modbus-RTU Communication

Best regards
Giuseppe Pagano

Hello rharb004, unfortunately, I can't tell you that because we haven't tried it out. I can only give you the following information. The RevPi image is based on Raspberry OS. If the SDK can be installed there, it should probably not be a problem. However, I can't promise you that it will work becaus...

Hello Purecade,

which image version did you use?

Go through the checklists. This may solve the problem.
Revolution Pi Checklist
Modbus Checklist

Best regards
Giuseppe Pagano

Hi ac-igunadi,

if a device shows this problem, we recommend that you follow the RevPi checklist. You can find it here:
Revolution Pi Checklist

If the problem persists. Contact our support:
Support Portal

Best regards
Giuseppe Pagano

type this into the console: and paste the output here in the chat.

and send me a screenshot of your PiCtory configuration.

Hello sandwave123,

thank you for the prompt reply.
The wiring seems to be OK, and I assume that the PiBridges are connected correctly at the top.

Didn't the two links from earlier help?
if not, follow the checklist below.
Revolution Pi Checklist

Best regards
Giuseppe Pagano

Hallo sandwave123, can you take a picture of your system, that I can see the wiring? Meanwhile you can check following documentestion for your problem, maybe this could help you. RevolutionPi IO-Modules FAQ | How to wire the RevolutionPi AIO, MIO, DIO, DI, DO modules? Commissioning RevPi DIO High-Si...

Hello Purecade, I understand your reply, but CODESYS has no limit on the number of connections at the software level, it depends on the hardware performance, I think it is related to the RevPi calculation module. how many slaves can be supported by the performance of the RevPi CM4S? It is always ver...