Dear Experts,

Pleasant Evening to all,

                        I Made A Program To Establish Modbus TCP/IP Communication Between the below PLC's.

I Used "S7-1511-1 PN" as Client, And, "S7-1212C DC/DC/DC" as Server. There are no Errors in the Program. Compiling and downloading made successfully. 

But, During Online state, I Turned On the "START" Boolean bit in "MB_CLIENT" block. 

It shows same FALSE status in the BUSY and DONE Bit output. And, Then Periodically I can see this Error Code (16# 80C6) in Status Node. 

I think the Server isn't Responding. Could you please anybody help me with this.

I have attached my Program and Screenshots.

Sanakiyen

Dear Experts,

Pleasant Evening to all,

                        I Made A Program To Establish Modbus TCP/IP Communication Between the below PLC's.

I Used "S7-1511-1 PN" as Client, And, "S7-1212C DC/DC/DC" as Server. There are no Errors in the Program. Compiling and downloading made successfully. 

But, During Online state, I Turned On the "START" Boolean bit in "MB_CLIENT" block. 

It shows same FALSE status in the BUSY and DONE Bit output. And, Then Periodically I can see this Error Code (16# 80C6) in Status Node. 

I think the Server isn't Responding. Could you please anybody help me with this.

I have attached my Program and Screenshots.

 Here You Can have my sample Screenshots.

Kaulquappe

Hello Sanakiyen,
when you use local port 502 at the server side, you need to use remote port 502 at client side (not 512).

Regards,
Kaulquappe

 Omg...!!!

Hello Kaulquappe Brother,

Thank you So much. I Didn't Notice It. Anyway, I will Let you Know the Status Once I Made the RUN time Test.

Hello Kaulquappe Brother,

My Program is working fine Now. No other mistake Expect what you mentioned Earlier.

Thank you So much for your Concern.