Modbus #2. STM32 as Master || Read Coils and Discrete Inputs

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[@bobby9568]

Sir, you are our king!

[@Emre5]

this is going to be great!

[@sumanthkumar4288]

please make a video of stm32 as a modbus slave and reading the holding registers and coils from the master

[@ControllersTech]

It will eventually come. There is one more video of STM32 as master writes into slave. After that i will cover STM32 as slave.

[@mail87523]

CAN-FD IS THE BEST WAY FOR FAST COMMUNICATION

[@chrisidema]

You got the addresses wrong. The first digit is the type of address, not part of the address. So 40001 is actually command 4, address 1. Since addresses are 16 bit it should actually be written like 400001, not 40001 though that notation is not very common. Modbus is a very old standard and it shows. But I like it.