Hi,

I have a step 7 and Wincc system with redundant controller ,ES and OS (windows 7 Professional 64 bit) with redundant H system with redundant bus ,

While adding 2 CP1623 in OS system and doing the configuration from ES its giving error with CP card as " MAC address is already used with other confi" , individually checking the CP1623 card both are working fine and can be configured from ES , problem is when I am using with 2 CP1623 card. MAC address checked no duplicate mac address available in the system

I checked the above with windows7  Professional with 32 bit its working fine.

please confirm the

1) can we use more than 1 CP1623 card with windows 7 Professional 64 bit

2) is any compatibility issue with windows7 professional 64 bit

Please reply

Hello Rahul_SH

look at this Link for compatibility information:

http://support.automation.siemens.com/WW/view/en/23785421

Bye Murof

https://support.industry.siemens.com/tf/ww/en/posts/duplicate-mac-address-detected-in-cp1623/108647?page=0&pageSize=10

Maybe, config is set to use default mac and must be changes from 1. before 2. can be added?

Hello Rahul_SH

I Think you also could use more than one CP in your System.

Bye Murof