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hi,
it is possible to exchange data between 2 rpi or more like ethernet IP or modbus but not using IP address of Rpi: using ID of raspberry, MAC address or other ?
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Hi,
do not understand exactly the problem.
Could you explain more in detail.
Is the problem that you do not know the ip address of the PI (because of DHCP served?)
BR
Edwin
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You could use network variables and set up as broadcast but this is very bad practice for programming. Best option is to set static IP ( ssh into RPi >> sudo nano /etc/dhcpcd.conf >> append the following to this file with your desired ip settings
hi,
it is possible to exchange data between 2 rpi or more like ethernet IP or modbus but not using IP address of Rpi: using ID of raspberry, MAC address or other ?
Hi,
do not understand exactly the problem.
Could you explain more in detail.
Is the problem that you do not know the ip address of the PI (because of DHCP served?)
BR
Edwin
Yes, it's that. IP could be change but ID ou MAC adress never change.
CODESYS software is able to detect all raspberry without know IP.
You could use network variables and set up as broadcast but this is very bad practice for programming. Best option is to set static IP ( ssh into RPi >> sudo nano /etc/dhcpcd.conf >> append the following to this file with your desired ip settings
interface eth0
static ip_address=192.168.1.XXX
static routers=192.168.1.XXX
static domain_name_servers=192.168.1.XXX