Machsupport Forum

Third party software and hardware support forums. => Modbus => Topic started by: magnetron on October 07, 2023, 01:47:01 PM

Title: Mach3 modbus TCP to STM32F4 uC - help
Post by: magnetron on October 07, 2023, 01:47:01 PM
hi dear forum members,

I am trying to modbus TCP connect MACH3 to STM32F4 uC

these are  the wireshark capture of the TCP traffic and the MACH3 test page

MACH3 connects and gives No error message to STM32

as you can see when I write to 2 holding registers the response from STM32 checksum is correct
however MACH3 gives Receive Timeout

what am I doing wrong , please advise

thank you

(https://i.hizliresim.com/meq9amy.png)
(https://i.hizliresim.com/bmoh0sh.png)