communication between RevolutionPi and RaspberryPi using revpimodio
Posted: 18 Jun 2018, 22:36
Dear all,
my question addresses a communication problem between a Raspberry Pi 3B+ (RasPi) and a Revolution Pi Core 3 (RevPi), as described here: https://revpimodio.org/gpio-zu-revolution/
The goal is to display state variables of my control program, which runs on a RevPi (in logiCAD), on a screen controlled by the RasPi.
I proceeded as described following the above link, but got the error message can not connect to revpi slave:
I tried all I can think of to get rid of the error, but haven’t succeeded. I am very much looking forward to seeing any ideas and will be very thankfull.
Some background information:
- RasPi and RevPi are connected via a patch cable (RJ45)
- there is no control program on the RevPi running
- both devices have a static IP
- I can ping both devices from the other respectively
- the RevPi runs on Jessie and the RasPi on Stretch
- I set the Enable/Disable Modbus Slave on the RevPi web-interface to both enabled and disabled without success
- on the RasPi I changed the file /boot/cmdline.txt by adding net.ifnames=0 to its end in order to change the network name back to Jessie-like nomenclature (as described here).
(There is a comment section on revpimodio.org which I tried, but it doesn’t seem to be activated)
my question addresses a communication problem between a Raspberry Pi 3B+ (RasPi) and a Revolution Pi Core 3 (RevPi), as described here: https://revpimodio.org/gpio-zu-revolution/
The goal is to display state variables of my control program, which runs on a RevPi (in logiCAD), on a screen controlled by the RasPi.
I proceeded as described following the above link, but got the error message can not connect to revpi slave:
I tried all I can think of to get rid of the error, but haven’t succeeded. I am very much looking forward to seeing any ideas and will be very thankfull.
Some background information:
- RasPi and RevPi are connected via a patch cable (RJ45)
- there is no control program on the RevPi running
- both devices have a static IP
- I can ping both devices from the other respectively
- the RevPi runs on Jessie and the RasPi on Stretch
- I set the Enable/Disable Modbus Slave on the RevPi web-interface to both enabled and disabled without success
- on the RasPi I changed the file /boot/cmdline.txt by adding net.ifnames=0 to its end in order to change the network name back to Jessie-like nomenclature (as described here).
(There is a comment section on revpimodio.org which I tried, but it doesn’t seem to be activated)