Dears

I am using three s7 plc 1200 to control and monitor different tasks, for each one I gave different IP address (see the attached pic), I would to connect them via cisco switch to my PC.

Now, how can I get tags and write tags from the wincc v7.3 to all plc in the same time.

please advise, help

thanks

Duris_I

Hello,

sry not exactly answer to your question but looks to me very strange that WinCC doesn't allow create more communication channels...

 Thanks Duris, I edited my post

Hello,

It's possible to connect that to the Wincc,

As you told, give the address to every PLC & specific tags and from connection add that PLC connection lines. Then Connect tags to screen as your design.

I have did that before with 3 PLC 1200  and 5 PLC s7 300 215 2DP

Regards,

=========================================================

Look for alternative not for the correct answer....

Hello Youmbah

To Connect a S71200 it´s no Problem with V7.3 :

https://support.industry.siemens.com/cs/ww/en/view/101908495

Also you can create 3 connections, but the main thing is you wrote you want to write "at the same time". This is not possible. The HMI communication is not proceeded in the normal S7 cycle.

It works parallel to the S7 PLC cycle. So you cannot be sure  that a Tag is written simultaniously  to all three PLC Connections. But it you only want to write to all three this is no Problem.

Bye Murof

 Thank you Ahmed for your hint, my proposed system works now ^_^

ahmed alqubati

Hello,

It's possible to connect that to the Wincc,

As you told, give the address to every PLC & specific tags and from connection add that PLC connection lines. Then Connect tags to screen as your design.

I have did that before with 3 PLC 1200  and 5 PLC s7 300 215 2DP

Regards,

=========================================================

Look for alternative not for the correct answer....

 Thanks murof for your link, it was helpful too, I am able now to read tags and control the system

Murof

Hello Youmbah

To Connect a S71200 it´s no Problem with V7.3 :

https://support.industry.siemens.com/cs/ww/en/view/101908495

Also you can create 3 connections, but the main thing is you wrote you want to write "at the same time". This is not possible. The HMI communication is not proceeded in the normal S7 cycle.

It works parallel to the S7 PLC cycle. So you cannot be sure  that a Tag is written simultaniously  to all three PLC Connections. But it you only want to write to all three this is no Problem.

Bye Murof