Hello, I'm trying to use the T_CONFIG block to change the IP of the PLCs in the HMI. But some errors appears when i try to compile the program.

The project uses 2 PLCs connected in 1 HMI, and their IPs need to change if I want during the process.

I've watched some tutorials to use the block, and did exactly what the told to do, but maybe the problem appears because of the 2 PLCs.

 A

 B

Both of the PLCs are equal, only changing their names 

 A

 B

Does anyone know what is happening and how to solve these errors?

I'm using TIA Portal V16 and 2 CPUs 1214C DC/DC/DC with a HMI Comfort TP700

Thank you for the answer.

Yes, it's S7 connection. The intention is change the IP in the runtime. Idk exactly why, but it's a client request

Stefan Arcularius

Hi jamalvmb,

for me it looks like you are configuring a S7 connection. I'm I right? This would not be possible because therefore a fixed IP address for at least the remote partner is needed. What is the intention of this connection?

Kind regards
Stefan

 But the two PLCs don't communicate exactly between each other. Why do they need to relate like this?
I tried do configure an fixed IP on PLC_B and the error is still here 

Wow, it Worked. Thanks a lot

But now a new issue happened.

I'm using physical PLC and trying to chance its IP. I configured the T_CONFIG block according to a video and a tutorial in this site, but now the online tags cannot read or write. in the plc. It happened when a changed the IP to be defined in the devide.

 ignore the issue about the Analog card. 

Earlier I used a simulator with the fixed IP, in the simulation the variables were changing normally. but I couldn't ping the IPs configured and I needed to be sure that the PLC changed it.