AdvancedHMI Software

General Category => Support Questions => Topic started by: frenelius on March 31, 2021, 02:13:49 AM

Title: Cannot communicate to OMRON CJ2M
Post by: frenelius on March 31, 2021, 02:13:49 AM

Hello,
I am testing HMI to see if I can replace the NB displays, but I cannot get to have full communication with the PLC through OmronEthernetFINSCom.

PLC CJ2M-CPU31

In some cases, I can write to D0, but will not get a valid response back from the PLC. And I have not been able to read D0 never.

Attached the Wireshark capture. PLC address is 10.0.0.1, AHMI is 10.0.0.5.

Do anybody know if it is just a configuration problem?

I have been trying different options (TargetNetworkAddress, TargetNodeAddress, Private, Public...) without luck.

Thanks a lot!

Title: Re: Cannot communicate to OMRON CJ2M
Post by: Archie on March 31, 2021, 03:39:37 AM

According to the error code being received 0x0502

 "Relaying is not possible because there are no routing tables"

Title: Re: Cannot communicate to OMRON CJ2M
Post by: frenelius on March 31, 2021, 03:53:17 AM

But the error I see in Wireshark is 0x8502, is it the same as 0x0502?

Thanks.

Title: Re: Cannot communicate to OMRON CJ2M
Post by: Archie on March 31, 2021, 04:19:41 AM

The 8 indicates a network relay error

Title: Re: Cannot communicate to OMRON CJ2M
Post by: Archie on March 31, 2021, 04:22:13 AM

Attached is more specific information