Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: magnetron on August 29, 2018, 09:06:58 AM
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hello dear forum,
I am trying to MODBUS TCP comunicate STM32 with Mach3
I have read the TCP documents in internet and learned
that first of all Mach3 send a TCP SYN message to the STM32
this time I send a SYN-ACK message to Mach3
after this Mach3 must send a ACK message to STM32 - ( according TCP documents )
as you can see in the attached picture
(https://s20.postimg.cc/rlxb38c5l/wireshark.jpg) (https://postimg.cc/image/rlxb38c5l/)
the SYN from Mach3 and SYN-ACK from STM32 is there
(192.168.1.2) PC (192.168.1.110) STM32
however ACK from Mach3 is missing and Mach3 reports "conection timeout"
there is a warning from Wireshark yellow coloured
what does this warning say ? what shall I do next ?
thank you
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hello all ,
I have new question
can I ethernet connect Mach3 MODBUS TCP - PC to STM32 via modem router or
is it possible only with crossover cable ?
thank you