Author Topic: Modbus TCP - Config IP adress (Read 1356 times)

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

Archie · « **Reply #1 on:** July 19, 2017, 05:27:07 PM »

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

ldsangr3 · « **Reply #2 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

Archie · « **Reply #3 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

ldsangr3 · « **Reply #4 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

Archie · « **Reply #5 on:** July 21, 2017, 10:42:09 AM »

What Modbus address are you putting in the PLCAddress property?

Author Topic: Modbus TCP - Config IP adress (Read 1356 times)

ldsangr3

Modbus TCP - Config IP adress

Archie

Re: Modbus TCP - Config IP adress

ldsangr3

Re: Modbus TCP - Config IP adress

Archie

Re: Modbus TCP - Config IP adress

ldsangr3

Re: Modbus TCP - Config IP adress

Archie

Re: Modbus TCP - Config IP adress