S7-400 Get block problems

[gustavo_dias]

Hi all,

I was trying to use get block in S7-400 for communicate with S7-1200 CPU. I have a lot of questions:

1) In S7 communications, how can I specific ID number? And about TSAP, this number could I find in some place or I define it?

2) When I simulate erro status 1 was show, it´s communication problems! I think it's because ID or TSAP number problem. The question, can I use PLCsim to simulate this communiocation? s7-1200 is in TIA portal, s7-400 in Simatic manager. To try simulate it I'm using S7-300 and S7-400 cpu in PLCsim.

Please help me experts!!

Regards

 

[Thomas_v2]

Hi,
there is a Siemens FAQ which describes who to setup a communication between a S7-300 and a S7-1200:

https://support.industry.siemens.com/cs/ww/en/view/92269951

You can use this as a guide for S7-400. The only difference is, that you have to use the correct Put/Get Blocks for the 400 family. In a S7-400 you must use the SFB14/SFB15, whereas in a S7-300 you have to use the FBs from the correct library.

You can't simulate communication with Plcsim between 1200/1500 and 300/400, as the Plcsim for 1200 is a complete different piece of software software.
If you have two Plcsim instances for a S7-400, then you can simulate Put/Get communication between these two.

 

[gustavo_dias]

Thanks Thomas, I simulate between 400/300 and works fine. My problem was TSAP definition. Now it's ok. Thanks for your help