Read Multiple Salves from Modbus RTU Master
Posted: 17 Jul 2025, 18:05
Hi
I am using RevPi4.
i can read sensors over RS485 Modbus RTU.
However, there seem like an issue reading multiple slaves.
two slaves with different address added I want to read 8 registers from address 10.
I think there is some issue with offset/length
Second sensor address is not transmitted and only able to read one sensor (only the one at Action ID 1)
I am using RevPi4.
i can read sensors over RS485 Modbus RTU.
However, there seem like an issue reading multiple slaves.
two slaves with different address added I want to read 8 registers from address 10.
I think there is some issue with offset/length
Second sensor address is not transmitted and only able to read one sensor (only the one at Action ID 1)