Hello,

I have a S7 400H system with CP443-1 communication card. I have created a redundant TCP native communication with DCS. I want to check my communication logic. How can I check this logic. Is there any tool or software for communication?

hi pradhan,

what blocks do you use? Or what blocks do you want to use?

regards,

mopS04

hi pradhan,

what blocks do you use? Or what blocks do you want to use?

regards,

 I am using AG_LSEND and AG_LRCV blocks.

hi pradhan,

here you can find a FAQ about the AG_LSEND and AG_LRECV-blocks:

How do you program the communication blocks FC50 and FC60?

hope this helps,

regards,

Hi,

I did not know that there is a tool for but the FAQ mopS04 is a good link.

You can also check the Status of FC50/60 for errors or more informations.

Regards,

Towome

mopS04

hi pradhan,

here you can find a FAQ about the AG_LSEND and AG_LRECV-blocks:

How do you program the communication blocks FC50 and FC60?

hope this helps,

regards,

Thank you for the link. I have checked this link before preparing the logic. Actually I want to check the simulation of my logic. I have prepared the logic for PLC side redundancy and DCS side redundancy. There are four send receive blocks. That makes it tricky. So I want to check if this logic is working or not. Do you know any idea how to simulate the logic. I have the whole PLC system ready but I need to do simulation for DCS system. Is there any way to do the simulation, like we do simulation for Modbus TCP with Modsim or Modscan etc.

Hello,

in case of some defined frames via TCP (if you know consistency of course) you can use some TCP Server/Client utility. I got my own created for this but if you don't have one try simple Hyperterminal with TCP connection. It's maybe not comfortable but can simulate Server/Client. Also you can run more instances of it in case of simulate via other Port numbers. Yes, it can't simulate complex system but can help in case of test some communication needs.