It's my first time operating in Codesys 2.3, but I have done a good amount of Codesys programming, so I'm a little familiar. I haven't done a lot of RTU, but a lot of Modbus TCP.
I don't have the PLC in my reach at the moment, but I'm trying to be a little ahead.
We're adding the 750-652 module to read energy from a flowmeter over RTU. There will only be 1 slave.
I attached pictures of my current hardware, PLC code, the register datasheet from the slave and the only modbus serial library I seem to have available.
I'm uncertain if this will work.
Any help or clarification on how things work will be greatly appreciated.
Hi,
It's my first time operating in Codesys 2.3, but I have done a good amount of Codesys programming, so I'm a little familiar. I haven't done a lot of RTU, but a lot of Modbus TCP.
I don't have the PLC in my reach at the moment, but I'm trying to be a little ahead.
We're adding the 750-652 module to read energy from a flowmeter over RTU. There will only be 1 slave.
I attached pictures of my current hardware, PLC code, the register datasheet from the slave and the only modbus serial library I seem to have available.
I'm uncertain if this will work.
Any help or clarification on how things work will be greatly appreciated.
Thanks in advance.
Last edit: em1681 2025-09-01