AdvancedHMI Software

General Category => Support Questions => Topic started by: ldsangr3 on July 19, 2017, 05:11:50 PM

Title: Modbus TCP - Config IP adress
Post by: ldsangr3 on July 19, 2017, 05:11:50 PM

I am using Modbus tcp and config this with 192.168.1.2..

the communication failed, I use WiresHark, and the communication show  192.168.0.255
Why ??
And the procotol UDP, not Modbus TCP
what is wrong ??
thanks guys

Title: Re: Modbus TCP - Config IP adress
Post by: Archie on July 19, 2017, 05:27:07 PM

What is your IP, subnet, and gateway set to for your PC?

Title: Re: Modbus TCP - Config IP adress
Post by: ldsangr3 on July 19, 2017, 05:43:00 PM

Device is a Thinget HMI config with 192.168.1.2

Pc...192.168.1.3
sub 255.255.255.0
Gateway 192.168.0.1

Title: Re: Modbus TCP - Config IP adress
Post by: Archie on July 19, 2017, 06:17:56 PM

Your gateway is not in the same subnet which may be giving it problems. Try changing your gateway to 192.168.1.1

Title: Re: Modbus TCP - Config IP adress
Post by: ldsangr3 on July 21, 2017, 10:21:39 AM

Thanks for you help...
Make these changes, but I think the ip I was watching keeps popping up so I think it corresponds to another process in my pc :(   ..... 192.168.1.255

However, I do not see in wireshark the HMI advance communication,  the app say invalid address input string not was not in a correct format...

But I'm not sure if there is communication because I can not see this in the wireshark

Title: Re: Modbus TCP - Config IP adress
Post by: Archie on July 21, 2017, 10:42:09 AM

What Modbus address are you putting in the PLCAddress property?